@inproceedings{853af97781ca4f2a947bfe8a9a37446c,
title = "An all optical fiber frequency reference using digital interferometry",
abstract = "We use digitally enhanced heterodyne interferometry to measure the stability of optical fiber laser frequency references. Suppression of laser frequency noise by over four orders of magnitude is achieved using post processing time delay interferometry. This approach avoids dynamic range and bandwidth issues that can occur in feedback stabilization systems. Thus long fiber lengths may be used resulting in better frequency discrimination, a reduction in spatially uncorrelated noise sources and an increase in interferometer sensitivity. We achieve an optical stability of 30 Hz/√Hz for quasi-static frequencies as low as 20 mHz.",
keywords = "Digitally enhanced heterodyne interferometry, Fibre Michelson interferometer, Frequency noise, Frequency stabilization, Time delay interferometry",
author = "Gray, {Malcolm B.} and McRae, {Terry G.} and Silvie Ngo and Shaddock, {Daniel A.} and Hsu, {Magnus T.L.}",
year = "2014",
doi = "10.1117/12.2059435",
language = "English",
isbn = "9781628411751",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
booktitle = "23rd International Conference on Optical Fibre Sensors",
address = "United States",
note = "23rd International Conference on Optical Fibre Sensors ; Conference date: 02-06-2014 Through 06-06-2014",
}