FWM-PEV statistics in 8 channel 50W high power WDM PPM Tx with and without TDM based FWM mitigation

Doruk Engin; Jacob Hwang; Xung Dang; Patrick Olmstead; Ted Wysocki; Mark Storm

doi:10.1117/12.2647975

15 March 2023 FWM-PEV statistics in 8 channel 50W high power WDM PPM Tx with and without TDM based FWM mitigation

Doruk Engin, Jacob Hwang, Xung Dang, Patrick Olmstead, Ted Wysocki, Mark Storm

Proceedings Volume 12413, Free-Space Laser Communications XXXV; 124130F (2023) https://doi.org/10.1117/12.2647975
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

Fibertek is developing a power efficient, space qualifiable Eight WDM Channel PPM Downlink Tx Seed LAser Module (SAM) with TDM based FWM Mitigation Capability. SAM will be compatible with space qualifiable, high TRL, 8 WDM channel, 50W WDM Amplifier prototype that was delivered in early 2021. SAM together with the WDM Amplifier will meet all the requirements of a spaceflight DSOC WDM Transmitter. Fibertek has developed a comprehensive multi gain stage 1.5um WDM fiber amplifier numerical model that accurately quantifies the degradation of WDM PPM signals due to FWM. The physics model is used to quantify FWM-PEV for all 2 and 3 overlapping wavelength configurations of PPM orders 256-16. Results are used as inputs to a PPM statistics model that calculates the PEV statistics for all the PPM orders and WDM channels. The significant Improvements of the PEV statistics with the TDM based FWM mitigation using 2 or 3 wavelength subslots are quantified.

Conference Presentation

Citation Download Citation

Doruk Engin, Jacob Hwang, Xung Dang, Patrick Olmstead, Ted Wysocki, and Mark Storm "FWM-PEV statistics in 8 channel 50W high power WDM PPM Tx with and without TDM based FWM mitigation", Proc. SPIE 12413, Free-Space Laser Communications XXXV, 124130F (15 March 2023); https://doi.org/10.1117/12.2647975

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