Correlated self-heterodyne method for ultra-low-noise laser linewidth measurements

Yuan, Zhiquan and Wang, Heming and Liu, Peng and Li, Bohan and Shen, Boqiang and Gao, Maodong and Chang, Lin and Jin, Warren and Feshali, Avi and Paniccia, Mario and Bowers, John and Vahala, Kerry (2022) Correlated self-heterodyne method for ultra-low-noise laser linewidth measurements. Optics Express, 30 (14). pp. 25147-25161. ISSN 1094-4087. doi:10.1364/oe.458109. https://resolver.caltech.edu/CaltechAUTHORS:20220722-768617000

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Abstract

Narrow-linewidth lasers are important to many applications spanning precision metrology to sensing systems. Characterization of these lasers requires precise measurements of their frequency noise spectra. Here we demonstrate a correlated self-heterodyne (COSH) method capable of measuring frequency noise as low as 0.01 Hz²/Hz at 1 MHz offset frequency. The measurement setup is characterized by both commercial and lab-built lasers, and features low optical power requirements, fast acquisition time and high intensity noise rejection.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1364/OE.458109	DOI	Article
https://arxiv.org/abs/2010.09248	arXiv	Discussion Paper

ORCID:

Author	ORCID
Wang, Heming	0000-0003-3861-0624
Liu, Peng	0000-0002-8188-632X
Shen, Boqiang	0000-0003-0697-508X
Gao, Maodong	0000-0002-7791-0008
Chang, Lin	0000-0001-5311-3349
Jin, Warren	0000-0002-4297-7982
Bowers, John	0000-0003-4270-8296
Vahala, Kerry	0000-0003-1783-1380

Alternate Title:

Towards milli-Hertz laser frequency noise on a chip

Additional Information:

© 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement. Received 16 Mar 2022; accepted 14 Jun 2022; published 27 Jun 2022. The authors acknowledge Q. Yang and Y. Lai for helpful discussions. Funding. Defense Advanced Research Projects Agency (HR001-20-2-0044); Air Force Office of Scientific Research (FA9550-18-1-0353). Data availability. Data underlying the results presented in this paper may be obtained from the authors upon reasonable request. Code that processes oscilloscope data has been released as a Python package (pycosh) and can be found at the Python Package Index website. The authors declare no conflicts of interest.

Funders:

Funding Agency	Grant Number
Defense Advanced Research Projects Agency (DARPA)	HR001-20-2-0044
Air Force Office of Scientific Research (AFOSR)	FA9550-18-1-0353

Issue or Number:

DOI:

10.1364/oe.458109

Record Number:

CaltechAUTHORS:20220722-768617000

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20220722-768617000

Official Citation:

Zhiquan Yuan, Heming Wang, Peng Liu, Bohan Li, Boqiang Shen, Maodong Gao, Lin Chang, Warren Jin, Avi Feshali, Mario Paniccia, John Bowers, and Kerry Vahala, "Correlated self-heterodyne method for ultra-low-noise laser linewidth measurements," Opt. Express 30, 25147-25161 (2022)

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

115759

Collection:

CaltechAUTHORS

Deposited By:

George Porter

Deposited On:

27 Jul 2022 14:45

Last Modified:

27 Jul 2022 14:45

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