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Appl Opt. 1970 Oct 01;9(10):2305. doi: 10.1364/AO.9.002305.

Temperature control of the bandpass of an interference filter.

Applied optics

R Mark, D Morand, S Waldstein

PMID: 20094254 DOI: 10.1364/AO.9.002305

Abstract

This paper describes a narrow bandpass filter which is temperature controlled to maintain optical characteristic while operating in an ambient temperature range of -20 degrees C to +70 degrees C. Pertinent source of bandpass shift and means for their control are discussed. The analytical approach, resultant filter assembly configuration, and performance test results of the assembly are presented.

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