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Temperature insensitive vertically coupled microring resonator add/drop filters by means of a polymer overlay

Sai T. Chu, Wugen Pan, Shuichi Suzuki, Brent E. Little, Shinya Sato, Yasuo Kokubun

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

The temperature dependence of vertically coupled glass microring resonator add/drop filters is investigated. Measurements show that the passband of the air-clad microring resonator filter increases with temperature at a rate of 0.0137 nm/°C. Using a PMMA-TFMA polymer that has an opposite refractive index temperature gradient than glass as the overlay of the microring resonator, the temperature dependence of the filter is compensated to -0.0025 nm/°C in the operation range of 25 °C to 55 °C.
Original languageEnglish
Pages (from-to)1138-1140
JournalIEEE Photonics Technology Letters
Volume11
Issue number9
DOIs
Publication statusPublished - Sept 1999
Externally publishedYes

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