50W, 1.5um, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom

Doruk Engin; Slava Litvinovitch; Chad Gilman; He Cao; Ted Wysocki; Bruce McIntosh; Joe Rudd; Jacob Hwang; David Pachowicz; Keith Petrillo; Nicholas Sawruk; Andrew Schober; Mark Storm

doi:10.1117/12.2577276

5 March 2021 50W, 1.5μm, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom

Doruk Engin, Slava Litvinovitch, Chad Gilman, He Cao, Ted Wysocki, Bruce McIntosh, Joe Rudd, Jacob Hwang, David Pachowicz, Keith Petrillo, Nicholas Sawruk, Andrew Schober, Mark Storm

Author Affiliations +

Proceedings Volume 11678, Free-Space Laser Communications XXXIII; 116780K (2021) https://doi.org/10.1117/12.2577276
Event: SPIE LASE, 2021, Online Only

Abstract

Fibertek has developed a space qualifiable 50W 8Ch. WDM Amplifier prototype that is designed to meet all the environmental and optical requirements of a DSOC mission. The deliverd amplifier is optimized for efficiency and athermal performance achieving 22% e-o efficiency. The high TRL 1.5-μm high TL fiber amplifier supports up to 6W/channel, with >128-ary pulse-position-modulation (PPM) format, and with 25-nm gain-flat bandwidth. Output electro-optic characteristics, the System Reliability Analysis, Mechanical Thermal analysis and Mechanical Structural and Vibration analysis of the high TRL delivered laser prototype are presented. A power efficient TDM based FWM mitigation technique that improves PEV performance of Tx, is demonstrated.

Conference Presentation

Citation Download Citation

Doruk Engin, Slava Litvinovitch, Chad Gilman, He Cao, Ted Wysocki, Bruce McIntosh, Joe Rudd, Jacob Hwang, David Pachowicz, Keith Petrillo, Nicholas Sawruk, Andrew Schober, and Mark Storm "50W, 1.5μm, 8 WDM (25nm) channels PPM downlink Tx for deep space lasercom", Proc. SPIE 11678, Free-Space Laser Communications XXXIII, 116780K (5 March 2021); https://doi.org/10.1117/12.2577276

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