Self-holding photochromic polymer Mach–Zehnder optical switch

A self-holding and optical–optical 2×2 switch using a Mach–Zehnder interferometer with a thermally irreversible photochromic (PC) guest/host polymer cladding is reported. The device was fabricated using a silica-based integrated optic Mach–Zehnder interferometer with a PC cladding polymer. Cross-bar...

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Bibliographic Details
Published in:Applied physics letters 1994-12, Vol.65 (23), p.2919-2921
Main Authors: Ebisawa, Fumihiro, Hoshino, Mitsutoshi, Sukegawa, Ken
Format: Article
Language:English
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Summary:A self-holding and optical–optical 2×2 switch using a Mach–Zehnder interferometer with a thermally irreversible photochromic (PC) guest/host polymer cladding is reported. The device was fabricated using a silica-based integrated optic Mach–Zehnder interferometer with a PC cladding polymer. Cross-bar switching was achieved by using ultraviolet (313 nm) and visible (≳500 nm) light. The switching state was self-holding in the dark. Switching was observed with a crosstalk ratio of −12 dB and an excess loss of 7 dB at 1.55 μm.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.112530