Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Characterization of frequency noise on a broadband infrared frequency comb using optical heterodyne techniques

Published

Author(s)

K Kim, Jeffrey W. Nicholson, M. Yan, J. C. Knight, Nathan R. Newbury, Scott A. Diddams

Abstract

We measure the frequency noise across a Cr:forsterite in- frared frequency comb through the optical heterodyne beat of different comb teeth against stable continuous wave (CW) lasers. This sensitive measurement shows strong correlations of the frequency noise between spectral components of the comb, relative to a fixed optical frequency near the 1.3 micron carrier of the Cr:forsterite laser. The correlated frequency fluctuations are shown to arise from amplitude noise on the pump laser. We also report a preliminary comparison of excess noise that occurs during supercontinuum generation in both highly nonlinear fiber and an extruded glass microstructured fiber.
Citation
Optics Express
Volume
15
Issue
26

Keywords

frequency noise, femtosecond laser, frequency comb, frequency metrology

Citation

Kim, K. , Nicholson, J. , Yan, M. , Knight, J. , Newbury, N. and Diddams, S. (2007), Characterization of frequency noise on a broadband infrared frequency comb using optical heterodyne techniques, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50630 (Accessed February 27, 2024)
Created December 12, 2007, Updated February 17, 2017