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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 13 — Jul. 1, 2006
  • pp: 1997–1999

Elimination of pump-induced frequency jitter on fiber-laser frequency combs

J. J. McFerran, W. C. Swann, B. R. Washburn, and N. R. Newbury  »View Author Affiliations


Optics Letters, Vol. 31, Issue 13, pp. 1997-1999 (2006)
http://dx.doi.org/10.1364/OL.31.001997


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Abstract

Optical frequency combs generated by femtosecond fiber lasers typically exhibit significant frequency noise that causes broad optical linewidths, particularly in the comb wings and in the carrier-envelope offset frequency ( f ceo ) signal. We show these broad linewidths are mainly a result of white amplitude noise on the pump diode laser that leads to a breathing-like motion of the comb about a central fixed frequency. By a combination of passive noise reduction and active feedback using phase-lead compensation, this noise source is eliminated, thereby reducing the f ceo linewidth from 250 kHz to < 1 Hz . The in-loop carrier-envelope offset phase jitter, integrated to 100 kHz , is 1.3 rad .

© 2006 U.S. Government

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 22, 2006
Manuscript Accepted: March 30, 2006

Citation
J. J. McFerran, W. C. Swann, B. R. Washburn, and N. R. Newbury, "Elimination of pump-induced frequency jitter on fiber-laser frequency combs," Opt. Lett. 31, 1997-1999 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-13-1997

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