FSR-tunable comb-swept laser with optical Vernier sampling for distance measurement

Seong Jin Bak; Hansol Jang; Gyeong Hun Kim; Chang-Seok Kim

doi:10.1117/12.2608474

5 March 2022 FSR-tunable comb-swept laser with optical Vernier sampling for distance measurement

Seong Jin Bak, Hansol Jang, Gyeong Hun Kim, Chang-Seok Kim

Proceedings Volume PC12008, Photonic Instrumentation Engineering IX; PC1200801 (2022) https://doi.org/10.1117/12.2608474
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

An optical interferometry measurement system has lots of advantages, and it is widely used in various applications. For a longer range and higher speed of optical interferometry measurement, it is required a higher burden of data amount during the data acquisition (DAQ) process. A novel light source called comb-swept laser was proposed to solve the heavy load in DAQ, but comb-swept laser needs a solution for the distance aliasing problem. Recently, optical Vernier sampling was suggested to solve the distance aliasing problem with two different free spectral range (FSR) combs. This research introduces a new type of FSR-tunable comb-swept laser for optical Vernier sampling to measure long-range with high speed without high-speed DAQ.

Conference Presentation

Citation Download Citation

Seong Jin Bak, Hansol Jang, Gyeong Hun Kim, and Chang-Seok Kim "FSR-tunable comb-swept laser with optical Vernier sampling for distance measurement", Proc. SPIE PC12008, Photonic Instrumentation Engineering IX, PC1200801 (5 March 2022); https://doi.org/10.1117/12.2608474

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