Abstract
Optical comb filter generation was proposed and experimentally demonstrated by using Fabry-Perot interferometer in micro cavity. The change of length of Fabry-Perot interferometer modifies the interference pattern with the adjusted length is from 0 um to 350 nm. The parameter of the generated comb such as free spectral range, extinction ratio, quality factor and finesse was recorded with and without Zinc Oxide based film (nano powder and nano particles). The stable comb filter was generated with a length of 100 um for both Zin Oxide-based film and 150 um for the uncoated mirror. At the maximum length of 350 nm, Zinc Oxide nano particles film generates most stable optical comb filter with free spectral range, extinction ratio, quality factor and finesse of, 3 nm, 8 dB, 1298 and 2.5, respectively.
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