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

K. Kim, J. W. Nicholson, M. Yan, J. C. Knight, N. R. Newbury, S. A. Diddams

Research output: Contribution to journalArticle

4 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)17715-17723
Number of pages9
JournalOptics Express
Issue number26
Publication statusPublished - 2007 Dec 24


All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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