Adaptive thermal stabilization of an integrated photonic spectrometer using parasitic interference fringes

Chu C. Teng, Chi Xiong, Eric J. Zhang, William M.J. Green, Gerard Wysocki

Research output: Contribution to journalArticle

Abstract

Parasitic fringe drift from unwanted scatterings limits the long-term stability of waveguide-based optical spectrometers. Yet their spectral features provide relevant information that can be used to improve performance of the spectrometer. We show that fringe drift can be extracted and utilized to perform accurate thermal stabilization, especially in the case of integrated waveguide sensors. In this Letter, effective stabilization of a methane silicon photonic sensor is demonstrated, and significant reduction in fringe noise is clearly observed.

Original languageEnglish (US)
Pages (from-to)3252-3255
Number of pages4
JournalOptics Letters
Volume45
Issue number12
DOIs
StatePublished - Jun 15 2020

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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