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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 21 — Oct. 12, 2009
  • pp: 18606–18611

Er-doped fiber comb with enhanced fceo S/N ratio using Tm:Ho-doped fiber

Yunseok Kim, Young-Jin Kim, Seungman Kim, and Seung-Woo Kim  »View Author Affiliations

Optics Express, Vol. 17, Issue 21, pp. 18606-18611 (2009)

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We reportthat the Tm:Ho-doped fiber can be utilized to improve the frequency stabilization of the Er-doped fiber comb. This rare-earth doped fiber provides photon absorption at 1.2 μm and 1.7 μm wavelengths together with emission at wavelengths between 1.8 μm to 2.1 μm. This unique combination of the absorption and emission regions constructively redistributes the spectral power of the supercontinuum generated by a highly nonlinear fiber to detect the carrier-envelope-offset frequency (fceo ) via a self-referencing f-2f interferometer. As a result, the signal to noise (S/N) ratio of the detected fceo signal increases by 10 dB, thereby increasing the potential of enhancing the long-term frequency stability of the fiber frequency comb.

© 2009 OSA

OCIS Codes
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.4800) Instrumentation, measurement, and metrology : Optical standards and testing
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 20, 2009
Manuscript Accepted: September 25, 2009
Published: September 30, 2009

Yunseok Kim, Young-Jin Kim, Seungman Kim, and Seung-Woo Kim, "Er-doped fiber comb with enhanced fceo S/N ratio using Tm:Ho-doped fiber," Opt. Express 17, 18606-18611 (2009)

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