title: Integrated chip-scale Si3N4wavemeter with narrow free spectral range and high stability.
abstract: We designed, fabricated, and characterized an integrated chip-scale wavemeter based on an unbalanced Mach-Zehnder interferometer with 300 MHz free spectral range. The wavemeter is realized in the Si3N4platform, allowing for low loss with ∼62  cm of on-chip delay. We also integrated an optical hybrid to provide phase information. The main benefit of a fully integrated wavemeter, beside its small dimensions, is increased robustness to vibrations and temperature variations and much improved stability over fiber-based solutions.
authors.forename: Chao
authors.initials: C
authors.lastname: Xiang
authors.forename: Minh A
authors.initials: MA
authors.lastname: Tran
authors.forename: Tin
authors.initials: T
authors.lastname: Komljenovic
authors.forename: Jared
authors.initials: J
authors.lastname: Hulme
authors.forename: Michael
authors.initials: M
authors.lastname: Davenport
authors.forename: Doug
authors.initials: D
authors.lastname: Baney
authors.forename: Bogdan
authors.initials: B
authors.lastname: Szafraniec
authors.forename: John E
authors.initials: JE
authors.lastname: Bowers