Adaptive thermal stabilization of an integrated photonic spectrometer using parasitic interference fringes
Publication Year
2020
Type
Journal Article
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. 2020 Optical Society of America
Keywords
Journal
Optics Letters
Volume
45
Pages
3252-3255
ISBN
01469592
Compilation and indexing terms, Copyright 2021 Elsevier Inc.20202508854472Improve performanceIntegrated photonicsIntegrated waveguidesInterference fringeLong term stabilityOptical spectrometersSpectral featureThermal stabilization