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1 April 2022 Towards a space-suitable wavelength-division multiplexer for 5-channel high-power long-range laser communication in the C-and L-band
Matthias Heinzig, Till Walbaum, Maximilian Strecker, Christoph Damm, Oliver DeVries, Thomas Schreiber
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Proceedings Volume PC11993, Free-Space Laser Communications XXXIV; PC1199307 (2022) https://doi.org/10.1117/12.2626234
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
A module for spectral combination of five channels with an individual power of 20W each, designed for satellite-based communication, is presented. The channels are selected from the telecommunication ITU grid with a spectral spacing of 400 GHz. The combination is based on volume Bragg gratings, allowing for narrow spacing and combination without loss of near-diffraction-limited beam quality. Thermal effects due to high laser power are investigated. Due to the projected on-board satellite usage, volume and mass as well as vacuum conditions and radiation are considered in the module design.
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Matthias Heinzig, Till Walbaum, Maximilian Strecker, Christoph Damm, Oliver DeVries, and Thomas Schreiber "Towards a space-suitable wavelength-division multiplexer for 5-channel high-power long-range laser communication in the C-and L-band", Proc. SPIE PC11993, Free-Space Laser Communications XXXIV, PC1199307 (1 April 2022); https://doi.org/10.1117/12.2626234
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KEYWORDS
Laser communications
High power lasers
L band
Multiplexers
Superposition
Optical design
Satellite communications
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