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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 26 — Dec. 24, 2007
  • pp: 17715–17723

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, and S. A. Diddams  »View Author Affiliations

Optics Express, Vol. 15, Issue 26, pp. 17715-17723 (2007)

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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.

© 2007 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7140) Ultrafast optics : Ultrafast processes in fibers

ToC Category:
Ultrafast Optics

Original Manuscript: November 1, 2007
Revised Manuscript: December 9, 2007
Manuscript Accepted: December 10, 2007
Published: December 12, 2007

K. Kim, J. W. Nicholson, M. Yan, J. C. Knight, N. R. Newbury, and S. A. Diddams, "Characterization of frequency noise on a broadband infrared frequency comb using optical heterodyne techniques," Opt. Express 15, 17715-17723 (2007)

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