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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 Diddams

Abstract

We measure the frequency noise across a Cr:forsterite infrared 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
Journal Optics Express
Volume
15
Issue
26

Keywords

metrology, ultrafast lasers, ultrafast processes in fibers

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, Journal Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32824 (Accessed April 18, 2024)
Created December 11, 2007, Updated October 12, 2021