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Proceedings Paper

Ultra-narrow bandpass optical interference filters for deep space optical communication
Author(s): Thomas Rahmlow; Timothy Upton; Markus Fredell; Terrance Finnell; Stephen Washkevich; Kirk Winchester; Tina Hoppock; Robert Johnson
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Paper Abstract

Deep space optical communication is a highly efficient alternative to radio frequency (RF) technology offering higher data bandwidths. The challenge is that deep space optical communication is photon limited. Rejection of extraneous light is critical to maximizing signal quality. High transmitting, ultra-narrow bandpass filters with high out of band optical density (OD) can meet this requirement while improving signal throughput. Design trade-offs and fabrication results are presented for ultra-narrow bandpass filters with bandwidths as narrow as 0.2 nm full width half maximum (FWHM) with on-band transmission greater than 95% and off band rejection of greater that OD 5. Filters are designed to match laser wavelengths in the region of 1550 nm.

Paper Details

Date Published: 15 February 2018
PDF: 8 pages
Proc. SPIE 10524, Free-Space Laser Communication and Atmospheric Propagation XXX, 1052416 (15 February 2018); doi: 10.1117/12.2290753
Show Author Affiliations
Thomas Rahmlow, Omega Optical, Inc. (United States)
Timothy Upton, Omega Optical, Inc. (United States)
Markus Fredell, Omega Optical, Inc. (United States)
Terrance Finnell, Omega Optical, Inc. (United States)
Stephen Washkevich, Omega Optical, Inc. (United States)
Kirk Winchester, Omega Optical, Inc. (United States)
Tina Hoppock, Omega Optical, Inc. (United States)
Robert Johnson, Omega Optical, Inc. (United States)

Published in SPIE Proceedings Vol. 10524:
Free-Space Laser Communication and Atmospheric Propagation XXX
Hamid Hemmati; Don M. Boroson, Editor(s)

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