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Proceedings Paper

Figure of merit of phase change materials for Mach-Zehnder interferometer-based and directional-coupler-based optical switches
Author(s): Kenta Sakamoto; Masashi Kuwahara; Hiroyuki Tsuda
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Paper Abstract

For further improvement of phase change material switches, relationships between optical characteristics of phase change materials(PCM) and the performance of optical switches were investigated. PCM optical switch is optimized for the both states of the insertion loss to be balanced. With optimized three-channel directional coupler switch, the refractive index difference between amorphous and crystalline state was inversely proportional to the insertion loss.

Paper Details

Date Published: 3 March 2020
PDF: 6 pages
Proc. SPIE 11276, Optical Components and Materials XVII, 1127604 (3 March 2020); doi: 10.1117/12.2545700
Show Author Affiliations
Kenta Sakamoto, Keio Univ. (Japan)
Masashi Kuwahara, National 1-1-1 Umezono (Japan)
Hiroyuki Tsuda, Keio Univ. (Japan)


Published in SPIE Proceedings Vol. 11276:
Optical Components and Materials XVII
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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