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

Dynamic computational optical fringe mitigation in tunable laser absorption spectroscopy

Chu C. Teng, Eric J. Zhang, Chi Xiong, William M. J. Green, and Gerard Wysocki
Opt. Express 28(26) 39017-39023 (2020)

Dither-free stabilization of a femtosecond doubly resonant OPO using parasitic sum-frequency mixing

Yuk Shan Cheng, Richard A. McCracken, and Derryck T. Reid
Opt. Lett. 45(3) 768-771 (2020)

Observation of second-order interference beyond the coherence time with true thermal photons

Gyu-Hyeok Lee, Dong-Gil Im, Yosep Kim, U-Shin Kim, and Yoon-Ho Kim
Opt. Lett. 45(24) 6748-6751 (2020)

Visualized thermal history sensor based on the rare-earth-doped zirconia

Heng Wang, Qiannan Mao, Bijiao Lan, and Shifeng Zhou
Opt. Lett. 45(9) 2608-2611 (2020)

Anti-interference single-photon LiDAR using stochastic pulse position modulation

Chia-Ming Tsai and Yung-Chien Liu
Opt. Lett. 45(2) 439-442 (2020)