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12 July 2023 High-efficiency fiber optic amplifiers for new space constellation applications
R.T. Logan, Davinder Basuita
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Proceedings Volume 12777, International Conference on Space Optics — ICSO 2022; 127776Q (2023) https://doi.org/10.1117/12.2691352
Event: International Conference on Space Optics — ICSO 2022, 2022, Dubrovnik, Croatia
Abstract
In this paper, we describe progress in development of both single-mode-fiber and polarization-maintaining fiber optic Erbium-Ytterbium-doped-fiber booster optical amplifiers, as well as single-mode-fiber optic low-noise Erbium optical amplifiers operating in the 1535-1565nm wavelength range, optimized for low-earth-orbit (LEO) spacecraft applications. The SMF boosters operate in the range of 1 W to 10 W output power, while the PMF amplifiers operate in the 1-3 W range. Both types of boosters can be co-packaged with low-noise/high-gain SMF Erbium-doped-fiber pre-amplifiers, and utilize highly efficient common pump-control, telemetry and power-supply circuitry, in rugged housings. The amplifiers utilize uncooled pump laser diodes, commercial-off-the-shelf optical components and electronics, as well as radiation-tolerant Er and ErYb fibers and microprocessors. The combined booster/LNA units exhibit up to 20% electrical wall-plug efficiency at beginning of life at operating power levels in the 5-10 W range. Environmental testing in thermal vacuum and from -10C to +60C was performed to demonstrate that these modules meet or exceed many of the requirements of space applications. In this presentation we will discuss the design approach, show performance characteristics, predicted reliability and preliminary environmental test results for these amplifiers.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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R.T. Logan and Davinder Basuita "High-efficiency fiber optic amplifiers for new space constellation applications", Proc. SPIE 12777, International Conference on Space Optics — ICSO 2022, 127776Q (12 July 2023); https://doi.org/10.1117/12.2691352
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KEYWORDS
Optical amplifiers
Design and modelling
Space operations
Vacuum
Fiber optics
Astronomical imaging
Free space optics
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