Ultralow Noise Optical Frequency Combs

Author
Abstract
<p>The invention of optical frequency combs (OFCs) based on femtosecond (fs) mode-locked lasers has merged laser based spectroscopy with fs-laser technology. OFCs have triggered quantum leaps of advancement in photonics, physics, astronomy, and engineering, while also lending themselves to applications in medical and environmental fields. The key feature of OFCs is their ultrahigh frequency and time resolution. In this review, we introduce the concept behind OFCs and their sources, with a focus on stability and phase-noise performance. We conclude with a discussion of recent progress of a monolithic OFC, which provides ultralow free-running phase noise and an unprecedented frequency stability of 1 part in 10<sup>19</sup>\&nbsp;at a 1 s gate time.</p>
Year of Publication
2018
Journal
IEEE Journal of Selected Topics in Quantum Electronics
Volume
24
Number of Pages
1-13
Date Published
2018-09
ISSN Number
1077-260X
URL
https://ieeexplore.ieee.org/abstract/document/8327818
DOI
10.1109/JSTQE.2018.2818461
JILA PI
Journal Article