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Proceedings Paper

50W, 1.5um, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom
Author(s): Doruk Engin; Slava Litvinovitch; David Pachowics; Jacob Hwang; Chad Gilman; He Cao; Keith G. Petrillo; Mark Storm; Malcolm W. Wright
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Paper Abstract

51W average power, 7 Channel WDM Fiber Laser Transmitter with 25nm flat gain has been demonstrated for optical space communication applications. Power Amplifier supports >10kW/channel SBS limited peak power and achieves o-o efficiency 44%. Pulse energy variation (PEV) due to gain dynamics and four wave mixing of the PPM tx output is characterized. Significant improvement in PEV with wavelength dependent pre-pulse shaping is demonstrated. A high reliability 50W 8 WDM channel amplifier design is described. The amplifier will be housed in a high TRL small SWAP space laser package with dimensions 10.6x13.8x 5.3” and weighs 28.7 lbs

Paper Details

Date Published: 2 March 2020
PDF: 13 pages
Proc. SPIE 11272, Free-Space Laser Communications XXXII, 112720V (2 March 2020); doi: 10.1117/12.2543905
Show Author Affiliations
Doruk Engin, Fibertek, Inc. (United States)
Slava Litvinovitch, Fibertek, Inc. (United States)
David Pachowics, Fibertek, Inc. (United States)
Jacob Hwang, Fibertek, Inc. (United States)
Chad Gilman, Fibertek, Inc. (United States)
He Cao, Fibertek, Inc. (United States)
Keith G. Petrillo, Fibertek, Inc. (United States)
Mark Storm, Fibertek, Inc. (United States)
Malcolm W. Wright, JPL (United States)


Published in SPIE Proceedings Vol. 11272:
Free-Space Laser Communications XXXII
Hamid Hemmati; Don M. Boroson, Editor(s)

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