Highly reliable and efficient 1.5um-fiber-MOPA-based, high-power laser transmitter for space communication

Doruk Engin; Slava Litvinovitch; Frank Kimpel; Kent Puffenberger; Xung Dang; Jean-Luc Fouron; Nigel Martin; Mark Storm; Shantanu Gupta; Rich Utano

doi:10.1117/12.2050496

9 June 2014 Highly reliable and efficient 1.5μm-fiber-MOPA-based, high-power laser transmitter for space communication

Doruk Engin, Slava Litvinovitch, Frank Kimpel, Kent Puffenberger, Xung Dang, Jean-Luc Fouron, Nigel Martin, Mark Storm, Shantanu Gupta, Rich Utano

Author Affiliations +

Proceedings Volume 9081, Laser Technology for Defense and Security X; 90810G (2014) https://doi.org/10.1117/12.2050496
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Fibertek has developed a space qualifiable, highly efficient, high power (<5W), fiber based 1.5um laser optical module (LOM). The transmitter achieves 6W average and <1kW peak power out of a 2m long single mode delivery fiber with 8nsec pulses and <6Ghz linewidth. Stimulated Brillouin Scattering (SBS) is managed by precise linewidth control and by use of LMA gain fiber in the power stage while maintaining the required diffraction limited, and highly polarized (PER<20dB) output. Size and weight of the built LOM are 8”x10”x2.375” and 3 kg, respectively. With improvements in the modulation scheme and component specification, achieved LOM electrical to optical efficiency is over 17.0%. Highly efficient operation is sustained for a wide range of pulse-position modulation (16 to 128-ary PPM) formats with pulse widths varying from 8nsec to 0.5nsec and operation temperature 10-50C. Pressure stress analysis, random vibration analysis and thermal analysis of the designed LOM predicts compliance with NASA GEVS levels for vibration and thermal cycling in a vacuum environment. System will undergo both thermal vacuum and vibration testing to validate the design.

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Doruk Engin, Slava Litvinovitch, Frank Kimpel, Kent Puffenberger, Xung Dang, Jean-Luc Fouron, Nigel Martin, Mark Storm, Shantanu Gupta, and Rich Utano "Highly reliable and efficient 1.5μm-fiber-MOPA-based, high-power laser transmitter for space communication", Proc. SPIE 9081, Laser Technology for Defense and Security X, 90810G (9 June 2014); https://doi.org/10.1117/12.2050496

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