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Proceedings Paper

1030nm Yb-fiber-MOPA-based, multi-aperture high power, high energy uplink laser beacon for deep space communication
Author(s): Doruk Engin; John Burton; Ibraheem Darab; Frank Kimpel; Brian Mathason; Shantanu Gupta
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Paper Abstract

A Yb LMA fiber amplifier based laser transmitter capable of operating with high average power and high energy (~500W, 1mJ) is presented. The prototype, all-fiber, high TRL level laser transmitter is designed to meet all the single aperture requirements of an eight aperture deep space laser beacon system. The high speed FPGA controlled transmitter supports a directly modulated DFB laser and two acousto-optic modulators which are used to implement an open loop pattern dependent -pulse pre-shaping algorithm. Ultra-fast high power diode drivers are used for generating outer nested PPM modulation with Binary PPM (67usec, 33mJ pulses) and for implementing <1usec loss of signal (LOS) protection. Optical performance to be presented will include diffraction limited (M2~1.2) nested PPM optical outputs with >300W average and 9kW peak power with >70% o-o efficiency for the final power stage.

Paper Details

Date Published: 6 March 2014
PDF: 11 pages
Proc. SPIE 8971, Free-Space Laser Communication and Atmospheric Propagation XXVI, 89710D (6 March 2014); doi: 10.1117/12.2040296
Show Author Affiliations
Doruk Engin, Fibertek, Inc. (United States)
John Burton, Fibertek, Inc. (United States)
Ibraheem Darab, Fibertek, Inc. (United States)
Frank Kimpel, Fibertek, Inc. (United States)
Brian Mathason, Fibertek, Inc. (United States)
Shantanu Gupta, Fibertek, Inc. (United States)


Published in SPIE Proceedings Vol. 8971:
Free-Space Laser Communication and Atmospheric Propagation XXVI
Hamid Hemmati; Don M. Boroson, Editor(s)

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