Compact and high-precision wavemeters using the Talbot effect and signal processing

Abstract

Precise knowledge of a laser’s wavelength is crucial for applications from spectroscopy to telecommunications. Here, we present a wavemeter that operates on the Talbot effect. Tone parameter extraction algorithms are used to retrieve the frequency of the periodic signal obtained in the sampled Talbot interferogram. Theoretical performance analysis based on the Cramér–Rao lower bound as well as experimental results are presented and discussed. With this scheme, we experimentally demonstrate a compact and high-precision wavemeter with below 10 pm single-shot estimation uncertainty under the $3–\sigma$ criterion around 780 nm.

© 2019 Optical Society of America

Overcoming the speckle correlation limit to achieve a fiber wavemeter with attometer resolution

Graham D. Bruce, Laura O’Donnell, Mingzhou Chen, and Kishan Dholakia
Opt. Lett. 44(6) 1367-1370 (2019)

Compact high-accuracy wavemeter

R. Salimbeni and R. V. Pole
Opt. Lett. 5(2) 39-41 (1980)

Talbot effect of azimuthally periodic Bessel-based structures

Davud Hebri, Mohammad Bagheri, and Saifollah Rasouli
Opt. Lett. 44(17) 4355-4358 (2019)

Rayleigh speckle-based wavemeter with high dynamic range and fast reference speckle establishment process assisted by optical frequency combs

Yangyang Wan, Xinyu Fan, Shuai Wang, Zhaopeng Zhang, Bingxin Xu, and Zuyuan He
Opt. Lett. 46(6) 1241-1244 (2021)

High-resolution wavemeter using Rayleigh speckle obtained by optical time domain reflectometry

Yangyang Wan, Shuai Wang, Xinyu Fan, Zhaopeng Zhang, and Zuyuan He
Opt. Lett. 45(4) 799-802 (2020)