26 October 2004 Tunable solid-etalon filter for use in lidar receivers
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Abstract
We discuss the design, fabrication and performance of a temperature-tuned solid etalon filter for a 532 nm lidar receiver. This is the first demonstration of a bulk, ZnS (a.k.a. Cleartran) etalon filter. Cleartran provides several advantages including: full FSR tuning with a small temperature range; high thermal conductivity; high numerical aperture; and high reliability (no moving parts or piezoelectrics involved). The filter system, with a FWHM ~28 pm, was tuned at a ratee of ~15 pm/°C across the FSR of 341 pm, and provided a wavelength stability of +/- 0.8 pm.
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Yakov Sidorin, Yakov Sidorin, David Lunt, David Lunt, Michael A. Krainak, Michael A. Krainak, Mark A Stephen, Mark A Stephen, } "Tunable solid-etalon filter for use in lidar receivers", Proc. SPIE 5542, Earth Observing Systems IX, (26 October 2004); doi: 10.1117/12.548967; https://doi.org/10.1117/12.548967
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