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Papers and Patents

List of Publications and Patents for

J. A. Nagel and S. L. Woodward

  • “Highly Efficient FBG-DFB Tm-doped Fiber Laser Source at 2039 nm”, Wiktor Walasik, Shivaraman Asoda, Robert E. Tench, Jean-Marc Delavaux, and Emmanuel Pinsard, to be presented at SPIE Photonics West, 2023 (January 2023).
  • “Nanosecond Pulsed MOPA Optical Transmitter at 2070 nm with > 250 W Peak Output Power”, Wiktor Walasik, Gustavo Rivas, Shivaraman Asoda, Robert E. Tench, and Jean-Marc Delavaux, to be presented at SPIE Photonics West 2023 (January 2023).
  • “Compact Packaged Tm-doped and Ho-doped Broadband PM ASE Sources in the 2000 nm Band”, Wiktor Walasik, Alexandre Amavigan, Cheng Wu, Gustavo Rivas, Robert E. Tench, and Jean-Marc Delavaux, to be presented at SPIE Photonics West 2023 (January 2023).
  • “Radiation Hardness Studies of Butterfly Single Mode DFB Lasers at 1064 nm”, Adrian Zepeda, Shivaraman Asoda, Wiktor Walasik, Robert E. Tench, Jean-Marc Delavaux, Yasunari Maeda, Yutaka Onishi, and Keizo Takemasa, to be presented at SPIE Photonics West 2023 (January 2023).
  • “High Performance Fiber Optical Amplifiers and Single Frequency Fiber Lasers in the 2000 nm Band”, Robert E. Tench, Invited conference presentation at GSELOP2022, Edinburgh, Scotland,

(August 2022).

  • “1760 nm Multi-Watt Broadband PM CW and Pulsed Tm-doped Fiber Amplifier”, Wiktor Walasik, Robert E. Tench, Gustavo Rivas, Jean-Marc Delavaux, and Ian Farley, submitted to IEEE Journal of Lightwave Technology, 2023.
  • “Linewidth, RIN, and Low-Frequency Noise Measurements of a 300 mW 2039 nm PM DFB FBG Laser Pumped with a Semiconductor Laser and a Fibre Laser,” Wiktor Walasik, Shivaraman Asoda, Robert E. Tench, Jean-Marc Delavaux, and Emmanuel Pinsard, presented at ECOC 2022 (September 22, 2022).
  • “1760 nm Multi-Watt Broadband PM CW and Pulsed Tm-doped Fibre Amplifier,” Wiktor Walasik, Robert E. Tench, Gustavo Rivas, Jean-Marc Delavaux, and Ian Farley, presented at ECOC 2022 (September 22, 2022).
  • “1760 nm Multi-Watt Broadband PM Tm-doped Fiber Amplifier”, Wiktor Walasik, Robert E. Tench, Gustavo Rivas, Jean-Marc Delavaux, and Ian Farley, presented at CLEO 2022 (May 16, 2022).
  • “Performance Benefits of 1860 nm vs. 1940 nm Pumping of Holmium-doped Fibres with Significant Ion Pairing”, Robert E. Tench, Wiktor Walasik, Alexander Amavigan, and Jean-Marc Delavaux, Proceedings of ECOC 2021 Conference (Bordeaux, France), Paper Tu2A-2, Sept. 2021.
  • “2090 nm 200 W peak power 50 ns pulsed PM Ho-doped fiber amplifier pumped at 1860 nm,” Wiktor Walasik, Robert E. Tench, Jean-Marc Delavaux, and Eric Lallier, Journal of Lightwave Technology, vol. 39, no. 15, pp. 5126-5133 (2021).
  • “2-μm Narrow Linewidth All-Fiber DFB Fiber Bragg Grating Lasers for Ho- and Tm-Doped Fiber-Amplifier Applications”, Wiktor Walasik, Daniya Traore, Alexandre Amavigan, Robert E. Tench, Jean-Marc Delavaux, and Emmanuel Pinsard, Journal of Lightwave Technology, vol. 39, no. 15, pp. 5096-5102 (2021).
  • “2-μm 5-kHz PM DFB-FBG fiber seed laser in ns pulsed Tm-doped fiber amplifier”, Wiktor T. Walasik, Robert E. Tench, Alexandre Amavigan, Jean-Marc Delavaux, and Andre Van Rynbah, SPIE Proceedings Volume 11739, Fiber Optic Sensors and Applications XVII; 1173909 (2021)
  • “Novel Highly Efficient In-Band Pump Wavelengths for Medium Slope Efficiency Holmium-Doped Fiber Amplifiers”, Robert E. Tench, Wiktor Walasik, and Jean-Marc Delavaux, IEEE Journal of Lightwave Technology vol. 39, no. 11, pp. 3546-3552 (2021).
  • “Optimum In-Band Pump Wavelengths for Ho-doped Fiber Amplifiers”, Robert E. Tench, Jean-Marc Delavaux, and Clement Romano, Proc. SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 116650F (5 March 2021).
  • “Multi-Watt Broadband Wavelength Tunable Polarization Maintaining Tm-doped Fiber Laser Module,” Clement Guyonnet, Alexandre Amavigan, Wiktor Walasik, Robert E. Tench, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, Arnaud Laurent, and Patrice Crochet, SPIE 11665, Fiber Lasers XVIII:

Technology and Systems, 1166524 (5 March 2021).

  • “High Performance +23 dBm Miniature PM Ho-Doped Fiber Amplifier at 2100 nm,” Alexandre Amavigan, Shivaraman Asoda, Robert E. Tench, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, and Arnaud Laurent, SPIE 11665, Fiber Lasers XVIII: Technology and Systems, 1166529 (5 March 2021).
  • “2051 nm Narrow Linewidth All-Fibre DFB Laser for Holmium-Doped Fibre-Amplifier Applications,” Daniya Traoré, Wiktor Walasik, Alexandre Amavigan, Robert E. Tench, Jean-Marc Delavaux, and Emmanuel Pinsard, 2020 European Conference on Optical Communications (ECOC), Brussels, Belgium, 2020, pp. 1-4.
  • “3.5 W Broadband PM Hybrid Amplifier at 2051 nm with Holmium- and Thulium-Doped Single-Clad Fibers,”, Robert E. Tench, Alexandre Amavigan, Clement Romano, Daniya Traore, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, Arnaud Laurent, and Patrice Crochet, IEEE/OSA Journal of Lightwave Technology, vol. 39, no. 5, pp. 1471-1476 (2021).
  • “Experimental Performance of a Broadband Dual-Stage 1950 nm PM Single-Clad Tm-Doped Fiber Amplifier”, Robert E. Tench, Alexandre Amavigan, Ken Chen, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, and Arnaud Laurent, IEEE Photonics Technology Letters 32, 956—959 (2020).

 

  • “Multistage 2 µm Polarization-Maintaining Single Clad Tm-Doped Fiber Amplifier”, Robert E. Tench, Alexandre Amavigan, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, and Arnaud Laurent, SPIE DCS 2020 Online Forum, Paper 11405-20 (April 2020).

 

  • “In-Depth Studies of the Spectral Bandwidth of a 25 W 2 µm Band PM Hybrid Ho- and Tm-Doped Fiber Amplifier”, Robert E. Tench, Clement Romano, Jean-Marc Delavaux, Rob Lenox, Diarmuid Byrne, and Kevin Carney, IEEE Journal of Lightwave Technology 38, pp. 2456—2463 (2020).

 

  • “Novel Miniature 2 µm Watt-level PM Single Clad Tm-Doped Fiber Amplifier”, Robert E. Tench, Clement Romano, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, and Arnaud Laurent in Proc. SPIE Photonics West 2020 (San Francisco, CA, February 2020), Paper 11260-33.

 

  • “Ultra-flat supercontinuum from 1.95 to 2.65 µm in a nanosecond pulsed Thulium-doped fiber laser”, Clément Romano, Yves Jaouën, Robert E. Tench, and Jean-Marc Delavaux, Optical Fiber Technology 54, 102113 (2020).

 

  • “A 25 W 2 µm Broadband Polarization-Maintaining Hybrid Ho- and Tm-Doped Fiber Amplifier”, Robert E. Tench, Clement Romano, and Jean-Marc Delavaux, Applied Optics 58, 4170—4175 (2019).

 

  • “Studies of the Optical Bandwidth of a 25 W 2 μm Band PM Hybrid Ho-/Tm-Doped Fiber Amplifier”, Robert E. Tench, Clement Romano, and J.-M. Delavaux, in Proc. SPIE 11000, Fiber Optic Sensors and Applications XVI, Defense and Commercial Sensing, Baltimore, MD, Paper 11000-8 (April 2019).

 

  • “Two-Stage Performance of Polarization-Maintaining Holmium-Doped Fiber Amplifiers”, Robert E. Tench, Clement Romano, Glen M. Williams, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, and Arnaud Laurent, IEEE Journal of Lightwave Technology 37, 1434—1439 (2019).

 

  • “Shared Pump Two-Stage Polarization-Maintaining Holmium-Doped Fiber Amplifier”, Robert E. Tench, Clement Romano, and J.-M. Delavaux, IEEE Photonics Technology Letters 31, 357—360 (2019).

 

  • “25 W 2 µm Broadband Polarization-Maintaining Hybrid Ho- and Tm-Doped Fiber Amplifier”, Robert E. Tench, Clement Romano, and Jean-Marc Delavaux, in Proc. SPIE 10897, Fibers Lasers XVI: Technology and Systems, Photonics West 2019, San Francisco, CA (February 2019).

 

  • “kW pulsed nanosecond TDFL with direct modulation”, Clement Romano, Robert E. Tench, Yves Jaouen, and J.-M. Delavaux, in Proc. SPIE 10897, Fibers Lasers XVI: Technology and Systems, Photonics West 2019, San Francisco, CA (February 2019).

 

  • “20 W 1952 nm Tandem Hybrid Single and Double Clad TDFA”, Romano, R. E. Tench, and J.-M. Delavaux, Optical Fiber Technology 48, 58—64 (2019).

 

  • “Broadband High Gain Polarization-Maintaining Holmium-doped Fiber Amplifiers,” Robert E. Tench, Clement Romano, Jean-Marc Delavaux, Thierry Robin, Benoit Cadier, and Arnaud Laurent, in Proc. ECOC 2018, Rome, Italy, September 2018, Paper Mo3E.3.

 

  • “5 W 1952 nm Brillouin-Free Efficient Single Clad TDFA”, Romano, R. E. Tench, and J.-M. Delavaux, Optical Fiber Technology 46, 186—191 (2018).

 

  • “8W 1952nm Highly Efficient Brillouin-free Single Clad TDFA,” Clement Romano, Robert E. Tench, and Jean-Marc-Delavaux, in Proc. ECOC 2018, Rome, Italy, September 2018, Paper We2.5.

 

  • “Simulation of 2 μm thulium-doped single clad silica fiber amplifiers by characterization of the 3F4-3H6 transition,” Clement Romano, Robert E. Tench, and Jean-Marc-Delavaux, Optics Express 26, 26080—26092 (2018).

 

  • “Multistage single clad 2 μm TDFA with a shared L-band pump source,” Robert E. Tench, Clement Romano, and Jean-Marc Delavaux, Applied Optics 57 (21), 5948-5955 (2018).

 

  • “All-Polarization-Maintaining One- and Two-Stage Holmium-doped Fiber Amplifiers at 2051 nm,” E. Tench, C. Romano, J. Delavaux, T. Robin, B. Cadier, and A. Laurent, in Conference on Lasers and Electro-Optics, OSA Technical Digest (online) (Optical Society of America, 2018), paper JTh2A.132.

 

  • “Multistage Single Clad 2µm TDFA with a Shared L-Band Pump Source”, Robert E. Tench, Clement Romano, and Jean-Marc Delavaux, in Proc. SPIE 10654, Fiber Optic Sensors and Applications XV, 18 April 2018, Paper 10654-31.

 

  • “5W 1950nm Brillouin-Free Efficient Single Clad TDFA”, Clement Romano, Robert E. Tench, and Jean-Marc Delavaux, in Proc. SPIE 10637, Laser Technology for Defense and Security XIV, 17 April 2018, Paper 10637-7.

 

  • “Broadband 2 W Output Power Tandem Thulium-doped Single Clad Fiber Amplifier at 2µm”, Tench, R. E., Romano, C., and Delavaux, J.-M., IEEE Photonics Tech. Letters 30 (5), 503-506 (2018).

 

  • “Optimized design and performance of a shared pump single clad 2 μm TDFA,” E. Tench, C. Romano, and J.-M. Delavaux, Optical Fiber Technology 42, 18-23 (2018).

 

  • “Optimized design and performance of a shared pump single clad 2 μm TDFA,” E. Tench, C. Romano, and J.-M. Delavaux, in Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems,

30 January 2018, paper 10512-80.

 

  • “20-W 1952-nm tandem hybrid single and double clad TDFA,” Romano, R. E. Tench, and J-M. Delavaux, in Proc. SPIE 10512, Fiber Lasers XV: Technology and systems, 30 January 2018, paper 10512-25.

 

  • “Broadband 2 W Output Power Tandem Thulium-doped Single Clad Fibre Amplifier for

Optical Transmission at 2μm,” Robert E. Tench, Clement Romano, and Jean-Marc Delavaux, Proc. ECOC 2017, Gothenburg (2017), paper M.2.B.2.

 

  • “Caracterisation de la transition 3F4-3H6 dans les fibres silice dopes Thulium et simulation d’un amplifiacteur 2 µm”, Romano, R. E. Tench, and J.-M. Delavaux, JNOG 2017, Paper # 126.

 

  • “Characterization of the 3F4 – 3H6 Transition in Thulium-doped Silica Fibres and

Simulation of a 2μm Single Clad Amplifier,” Clement Romano, Robert E. Tench, Jean-Marc Delavaux, and Yves Jaouen, Proc. ECOC 2017, Gothenburg (2017), paper P1.SC1.2.

  • “Simulation and design of a multistage 10W thulium-doped double clad silica fiber

Amplifier at 2050 nm,” Clement Romano, Robert E. Tench, Yves Jaouen, and Glen M. Williams,

Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100830H (February 22, 2017); doi:10.1117/12.2250970

 

  • “3.2 Tb/s (40 x 80 Gb/s) Transmission over 21 x 100 km High Local Dispersion Managed

Fiber using All-Raman Amplified Spans with 0.8 bit/s/Hz Spectral Efficiency,”  G. C. Gupta,

  1. L. Wang, O. Mizuhara, R. E. Tench, N. N. Dang, P. Tabaddor, and A. Judy, IEEE Photonics Technology

Letters 15, 996-998 (2003).

 

  • “Linewidth limitations of low noise, wavelength stabilized Raman pumps,” L. Wang,
  1. E. Tench, L. M. Yang, and Z. Jiang, in Proc. Optical Amplifiers and Their Applications 2002 (OAA2002),

paper OMB5-2, July 2002.

 

  • “3.2 Tb/s (40 x 80 Gb/s) transmission over 1000 km with 100 km span (25 dB loss) and

0.8 bit/s/Hz of spectral efficiency,”  G. C. Gupta, R. E. Tench, O. Mizuhara, L. L. Wang, N. N. Dang,

  1. Chand, B. Mason, A. Ougazzaden, and C. W. Lentz, in Proc. OFC2002, paper TuA5, pp. 6-8, March 2002.

 

  • “Challenges in the Design and Packaging of Optical Amplifiers for DWDM Lightwave Networks

(Invited Paper),”  Robert E. Tench,  in Proc. 1999 IEEE Electronic Components and Technology

Conference, pp. 9-12 (June 1999).

 

  • “1 Tb/s (25 ch x 40 Gb/s) WDM Transmission over 342 km of TrueWave (non-zero-dispersion)

fiber,”  C. D. Chen, I. Kim, O. Mizuhara, T. V. Nguyen, K. Ogawa, R. E. Tench, L. D. Tzeng, and

  1. D. Yeates (in alphabetical order), in Proc. OFC’99, Postdeadline Paper PD7, February 1999.

 

  • “1 Tb/s (25 ch x 40 Gb/s) WDM Transmission over 342 km of TrueWave (non-zero-dispersion)

fiber,”  C. D. Chen, I. Kim, O. Mizuhara, T. V. Nguyen, K. Ogawa, R. E. Tench, L. D. Tzeng, and

  1. D. Yeates (in alphabetical order), Electronics Letters 35, 648-649 (1999).

 

  • “1.4 Tb/s (40 Gb/s x 35 ch) WDM Transmission Experiment over 85 km Standard Single Mode

Fiber,”  C. D. Chen, I. Kim, O. Mizuhara, T. V. Nguyen, K. Ogawa, R. E. Tench, L. D. Tzeng, and

  1. D. Yeates (in alphabetical order), in Proc. OECC’98, Postdeadline Paper PD1-2, July 1998.

 

  • “40 Gb/s x 35 ch (1.4 Tb/s Aggregate Capacity) WDM Transmission over 85 km Standard

Single Mode Fiber,”  C. D. Chen, I. Kim, O. Mizuhara, T. V. Nguyen, K. Ogawa, R. E. Tench,

  1. D. Tzeng, and P. D. Yeates (in alphabetical order), Electronics Letters 34, 2370-2371 (1998).

 

  • “1.2 Tb/s (30 ch x 40 Gb/s) WDM Transmission over 85 km Fiber,” D. Chen, I. Kim,
  1. Mizuhara, T. V. Nguyen, K. Ogawa, R. E. Tench, L. D. Tzeng, and P. D. Yeates, in Proc. OFC’98,

Postdeadline Paper PD21, March 1998.

 

  • 2 Tb/s (30 ch x 40 Gb/s) WDM Transmission over 85 km Fiber,” C. D. Chen, I. Kim,
  1. Mizuhara, T. V. Nguyen, K. Ogawa, R. E. Tench, L. D. Tzeng, and P. D. Yeates, Electronics

Letters 34, 1002-1004 (1998).

 

  • “Fluorescence-Based Measurement of g* for Erbium-Doped Fluoride Fiber Amplifiers,”
  1. E. Tench and M. Shimizu, in proceedings of OFC’97, Paper WA3 (March 1997).

 

  • “Fluorescence-Based Measurement of g* for Erbium-Doped Fluoride Fiber Amplifiers,”
  1. E. Tench and M. Shimizu, Journal of Lightwave Technology 15, 1559-1564 (1997).

 

  • “Options for Gain-Flattened Erbium-Doped Fiber Amplifiers,” Wysocki, R. E. Tench,
  1. Andrejo, D. J. DiGiovanni, and I. Jayawardene, in proc. of Optical Fiber Communications

Conference, OFC’97, Paper WF2 (March 1997).

 

  • “WDM Optical Amplifiers: Design and Applications (Invited Paper),” E. Tench,

in proceedings of European Conference on Optical Communications, ECOC’96, paper TuD.1.3

(September 1996).

 

 

 

  • “International Standards for Optical Amplifiers and Multiwavelength Optical Line

Systems (Invited Paper),”   R. E. Tench, OSA Trends in Optics and Photonics Vol. 5, Optical Amplifiers

and Their Applications, 1996 OAA Program Committee, eds. (Optical Society of America,

Washington, DC, 1996), pp. 268-288.

 

  • “International Standards for Multiwavelength Optical Line Systems: Current Status

and Open Issues (Invited Paper),”  R. E. Tench and M. Soulliere, OFC’96 Workshop on WDM

Technology, San Jose, CA (February 1996).

 

  • “Challenges in the Design and Packaging of Optical Amplifiers for Multiwavelength

Lightwave Communication Systems (Invited Paper),”  R. E. Tench, J. A. Nagel, and

J.-M. P. Delavaux, in proc. IEEE Electronics Technology and Components Conference 45,

May 1995 (Las Vegas, NV, USA), pp. 739-750.

 

  • “Control, Telemetry, and Performance Monitoring in Multiwavelength Lightwave Systems

Using Optical Amplifiers (Invited Paper),”  R. E. Tench, IEEE International Conference on

Communications ICC’95, Workshop on WDM Optical Network Management and Control,

(Seattle, WA, USA), June 1995.

 

  • “Field Measurement of 10 Gb/s Line Rate Transmission on the Columbus-IIB

Submarine Lightwave System,”  R. A. Jensen, R. E. Tench, D. G. Duff, C. R. Davidson, C. D. Chen,

  1. Mizuhara, T. V. Nguyen, L. D. Tzeng, and P. D. Yeates, IEEE Photonics Tech. Lett. 7, 1366-1368 (1995).

 

  • “A Field Demonstration of 20 Gb/s Capacity Transmission over 360 km of Installed Standard

(non-DSF) Fiber,”  Y. K. Park, P. D. Yeates, J-M. P. Delavaux, O. Mizuhara, T. V. Nguyen, L. D. Tzeng,

  1. E. Tench, B. W. Hakki, C. D. Chen, R. J. Nuyts, and K. Ogawa, IEEE Photonics Tech. Lett. 7, 816-818 (1995).

 

  • “1420-km Transmission of Sixteen 2.5 Gb/s Channels Using Silica-Based EDFA Repeaters,”

A.R. Chraplyvy, J-M. P. Delavaux, R. M. Derosier, G. A. Ferguson, D. A. Fishman, C. R. Giles, J. A. Nagel,

  1. M. Nyman, J. W. Sulhoff, R. E. Tench, R. W. Tkach, and J. L. Zyskind (in alphabetical order),

IEEE Photonics Tech. Lett. 6, 1371-1373 (1994).

 

  • “1420-km Transmission of Sixteen 2.5 Gb/s Channels Using Silica-Based EDFA Repeaters,”

A.R. Chraplyvy, J-M. P. Delavaux, R. M. Derosier, G. A. Ferguson, D. A. Fishman, C. R. Giles,

  1. A. Nagel, B. M. Nyman, J. W. Sulhoff, R. E. Tench, R. W. Tkach, and J. L. Zyskind (in alphabetical order),

in proc. OEC’94 (Tokyo, Japan),  Postdeadline Paper PDI-1, July 1994.

 

  • “10 Gb/s Prototype System Performance in Field Experiment,” D. Chen, J-M. P Delavaux,
  1. W. Hakki, O. Mizuhara, T. V. Nguyen, R. Nuyts, K. Ogawa, Y. K. Park, R. E. Tench, L. D. Tzeng,

and P. D. Yeates, in proc. OEC’94 (Tokyo, Japan), July 1994.

 

  • “A Field Demonstration of 10 Gb/s-360 km Transmission Through Embedded Standard

(non-DSF) Fiber Cables,”  C. D. Chen,  J.-M. P. Delavaux, B. W. Hakki, O. Mizuhara, T. V. Nguyen,

  1. J. Nuyts, K. Ogawa, Y. K. Park, R. E. Tench, L. D. Tzeng, and P. D. Yeates, in proc. OFC’94,

Postdeadline Paper PD, (March 1994).

 

  • “Field experiment of 10 Gb/s, 360 km transmission through embedded standard (non-DSF)

fibre cables,”  C. D. Chen,  J.-M. P. Delavaux, B. W. Hakki, O. Mizuhara, T. V. Nguyen, R. J. Nuyts,

  1. Ogawa, Y. K. Park, R. E. Tench, L. D. Tzeng, and P. D. Yeates, Electronics Letters 30, 1159-1160 (1994).

 

  • “Multiwavelength Propagation in Lightwave Systems with Strongly Inverted Fiber Amplifiers,”
  1. L. Goldstein, L. Eskildsen, C. Lin, and R. E. Tench, IEEE Photonics Tech. Lett. 6, 266-269 (1994).

 

  • “Polarization-Independent Phase Conjugation of Lightwave Signals,” M. Jopson and R. E. Tench,

Electronics Letters 29, 2216-2217 (1993).

 

  • “2.488 Gb/s-318 km Repeaterless Transmission Using Erbium-Doped Fiber Amplifiers in a

Direct Detection System,”  Y.K. Park, S. W. Granlund, T. W. Cline, L. D. Tzeng, J. S. French,

J-M. P. Delavaux, R. E. Tench, S. K.. Korotky, J. J. Veselka, and D. J. DiGiovanni, IEEE Photonics

Tech. Lett. 4, 179-182 (1992).

 

 

  • “Hybrid Er-Doped Fiber Amplifiers at 980-1480 nm for Long Distance Optical Communications,”
  1. P. Delavaux, C. F. Flores, R. E. Tench, T. C. Pleiss, T. W. Cline, D. J. DiGiovanni, J. F. Federici,
  2. C. Giles, H. M. Presby, S. Major, and W. Gignac, in proc. of European Conference on Optical

Communications, ECOC’92, Berlin, Germany (September 1992).

 

  • “1.55 microns 2.5 Gb/s Direct Detection Repeaterless Transmission of 160 km Non-Dispersion

Shifted Fiber,”  C. Y. Kuo, M. L. Kao, J. S. French, R. E. Tench, and T. W. Cline, IEEE Photonics

Tech. Lett. 2, 911-913 (1990).

 

  • “1.7 Gb/s-419 km Transmission Experiment Using a Shelf-Mounted FSK Coherent System

and Packaged Fiber Amplifier Modules,”  Y. K. Park, J-M. P. Delavaux, R. E. Tench, and

  1. W. Cline, IEEE Photonics Tech. Lett. 2, 917-919 (1990).

 

  • “1.7 Gb/s-419 km Transmission Experiment Using a Shelf-Mounted Coherent System and

Packaged Fiber Amplifier Modules,”  Y. K. Park, J-M. P. Delavaux, R. E. Tench, T. W. Cline,

and S. W. Granlund, in proc. OSA Topical Meeting on Optical Amplifiers and Their Applications,

Monterey, CA , USA (August 1990).

 

  • “Coherent Communication Systems Research and Development at AT&T Bell Laboratories,

Solid State Technology Center,” Yong-Kwan Park, Jean-Marc P. Delavaux, Robert E. Tench,

Terry W. Cline, Liang David Tzeng, Chien-yu C. Kuo, Earl J. Wagner, Carlos F. Flores, Peter Van Eijk,

  1. C. Pleiss, S. Barski, B. Owen, YihJye Twu, Niloy K. Dutta, Richard S. Riggs, Kinichiro Ogawa,

Proc. SPIE 1372, Coherent Lightwave Communications: Fifth in a Series, (1 January 1991);

doi: 10.1117/12.24923

 

  • “1.7 Gb/s, 1.5 micron Coherent Lightwave Regenerator,” J-M. Delavaux, Y. K. Park, R. E. Tench,
  1. Barski, B. Owen, L. D. Tzeng, and Y. Twu, Electronics Letters 26, 1480-1481 (1990).

 

  • “Point-to-Multipoint Distributions of 42 Channel VSB-AM Video Signals Using an Erbium-Doped

Fiber Amplifier,”  S.-Y. Huang, T. W. Cline, L. Upadhyahula, R. E. Tench, J. Lipson, and J. R. Simpson,

in proc. IEEE LEOS Topical Meeting on Broadband Analog Optoelectronics-Devices and Systems,

paper BAM7 (July 1990).

 

  • “A Field Demonstration of 1.7 Gb/s Coherent Lightwave Regenerators,” W. Cline,
  1. M. Delavaux, N. K. Dutta, P. VanEijk, C. Y. Kuo, B. Owen, Y. K. Park, T. C. Pleiss, R. S. Riggs,
  2. E. Tench, Y. Twu, L. D. Tzeng, and E. J. Wagner, proc. OFC’90, postdeadline paper (January 1990).

 

  • “A Field Demonstration of 1.7 Gb/s Coherent Lightwave Regenerators,” W. Cline,
  1. M. Delavaux, N. K. Dutta, P. VanEijk, C. Y. Kuo, B. Owen, Y. K. Park, T. C. Pleiss, R. S. Riggs,
  2. E. Tench, Y. Twu, L. D. Tzeng, and E. J. Wagner, IEEE Photonics Tech. Lett. 2, 425-427 (1990).

 

  • “A High Capacity Non-Coherent FSK Lightwave Field Experiment Using Er+3-Doped Fiber

Optical Amplifiers,”  D. A. Fishman, J.A. Nagel, T. W. Cline, R. E. Tench, T. C. Pleiss, T. Miller,

  1. G. Coult, M. A. Milbrodt, P. D. Yeates, A. Chraplyvy, R. Tkach, A. Piccirilli, J. R. Simpson,

and C. M. Miller, IEEE Photonics Tech. Lett. 2, 662-664 (1990).

 

  • “A 1.7 Gb/s Coherent FSK Heterodyne System,” W. Cline, J. P. Delavaux, N. K. Dutta,

S.W. Granlund, C. Kuo, B. Owen, Y. Park, T. C. Pleiss, R. S. Riggs, R. E. Tench, Y. Twu, P. VanEijk,

and E. J. Wagner, proc. Optical Fiber Communications Conference, OFC’90, paper FD5 (January 1990).

 

  • “8 Gbit/s 1.3-micron Receiver Using an Optical Preamplifier,” M. Jopson, A. H. Gnauck,
  1. L. Kasper, R. E. Tench, N. A. Olsson, C. A. Burrus, and A. R. Chraplyvy, Electronics Letters 25,

233-235 (1989).

 

  • “1.3 micron Semiconductor Laser Power Amplifier,” A. Olsson, T. Cella, L. D. Tzeng,

and R. E. Tench, IEEE Photonics Technology Letters 1, pp. 2-3 (1989).

 

  • “Dependence of Optical Receiver Sensitivity in a 147.75 Mb/s Heterodyne DPSK System

as a Function of Optical and Electrical Parameter Variations,” J-M. P. Delavaux, L. D. Tzeng,

  1. Y. Kuo, R. E. Tench, and M. Dixon, IEEE Journal of Lightwave Technology 7, 138-150 (1989).

 

 

  • “Polarization-Insensitive Lightwave Receiver Using Optical Amplifiers,” E. Tench,
  1. A. Olsson, L. D. Tzeng, T. W. Cline, and M. Dixon, Electronics Letters 24, 1497-1498 (1988).

 

  • “Crosstalk and Prefiltering in a Two-Channel ASK Heterodyne Detection System Without

the Effect of Laser Phase Noise,” Y. K. Park, S. Bergstein, R. E. Tench, R. W. Smith, S. K. Korotky,

  1. J. Burns, and S. W. Granlund, Journal of Lightwave Technology 6, 1312-1320 (1988).
  • “Measurement of Carrier-Density Mediated Intermodulation Distortion in an Optical

Amplifier,” R. M. Jopson, T. E. Darcie, K. Gayliard, R. T. Ku, R. E. Tench, N. A. Olsson, and

  1. C. Rice, Electronics Letters 23, 1394-1395 (1987).

 

  • “Performance Evaluation of Waveguide Phase Modulators for Coherent Systems at

1.3 and 1.5 microns,” R. E. Tench, J-M. P. Delavaux, L. D. Tzeng, R. W. Smith, L. L. Buhl, and

  1. C. Alferness, Journal of Lightwave Technology 5, 492-501 (1987).

 

  • “Crosstalk and Prefiltering in a Two-Channel ASK Heterodyne Detection System Without

the Effect of Laser Phase Noise,” Y. K. Park, S. S. Bergstein, R. E. Tench, R. W. Smith, S. K. Korotky,

and K. J. Burns, in proc. Optical Fiber Communications Conference OFC’87, Reno, Nevada USA

(January 1987).

 

  • “Comparison of the Detection Sensitivities of a Balanced Receiver and a PIN-FET

Transimpedance Receiver in a 147.7 Mb/s DPSK Experiment,” L. D. Tzeng, C.Y. Kuo, J-M. P. Delavaux,

  1. E. Tench, and M. Dixon, in proc. of ECOC’86, Barcelona, Spain (Sept. 1986).

 

  • “Dependence of Optical Receiver Sensitivity in a 147.75 Mb/s Heterodyne DPSK System

as a Function of Optical and Electrical Parameter Variations,” J-M. P. Delavaux, L. D. Tzeng, C. Y. Kuo,

  1. E. Tench, and M. Dixon, in proc. of European Conference on Optical Communications ECOC’86,

Barcelona, Spain (Sept. 1986).

 

  • “Performance Evaluation of an X-Cut Ti:LiNbO3 Waveguide Phase Modulator,” J-M. P. Delavaux,
  1. E. Tench, R. C. Alferness, and L. L. Buhl, in proc. of Conference on Lasers and ElectroOptics,

CLEO’86, San Francisco, CA, USA (June 1986).

 

  • “Precision Measurements of Hyperfine Predissociation in I2 Vapor Using a Two Photon

Resonant Scattering Technique,” R. E. Tench and S. Ezekiel, Chem. Phys. Lett. 96, 253 (1983).

 

  • “Two Laser Raman Difference Technique Applied to High Precision Spectroscopy,”
  1. Ezekiel, R. E. Tench, B. W. Peuse, P. R. Hemmer, J. E. Thomas, C. C. Leiby, Jr., R. H. Picard,

and C. R. Willis, J. Physique 42, C8-45 (1981).

 

  • “Precision Studies in 3-Level Systems,” W. Peuse, R. E. Tench, P. R. Hemmer, J. E. Thomas,

and S. Ezekiel, in Laser Spectroscopy V, Editors: A.R.W. McKellar, T. Oka and B. P. Stoicheff,

Springer-Verlag (1981), pp. 251-254.

 

Patents Issued for Robert E. Tench

 

 

“Polarization Insensitive Optical Communication Device Utilizing Optical Preamplification,”

US Patent 4,900,917.

 

“Electroabsorption Modulator with Tunable Chirp,”  US Patent 6,778,309.

 

“Optical Fiber Amplifier for Operation in Two Micron Wavelength Region,” US Patent 11,276,982 B2.

 

“Thulium-doped Fiber Amplifier Utilizing Wavelength Conditioning for Broadband Performance”,

US Patent 11,509,108 B2

 

“Broadband Tm-doped Optical Fiber Amplifier”, US Patent 11,509,109 B2

 

“Broadband Ho-doped Optical Fiber Amplifier”, US Patent 11,509,110 B2

 

 

 

Patent Applications Granted for Robert E. Tench

 

 

“Broadband Hybrid Optical Amplifier Operating in Eye-Safe Wavelength Region,” (2023).

 

 

 

Patent Applications Filed for Robert E. Tench

 

 

“Efficient In-Band Pumping of Holmium-Doped Optical Fiber Amplifier,” (2020)

 

“Polarization-Maintaining Fiber Laser Tunable Over Two Micron Region,” (2020).