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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 30, Iss. 18 — Sep. 15, 2005
  • pp: 2496–2498

Long-term optical phase locking between femtosecond Ti:sapphire and Cr:forsterite lasers

Yohei Kobayashi, Dai Yoshitomi, Masayuki Kakehata, Hideyuki Takada, and Kenji Torizuka  »View Author Affiliations


Optics Letters, Vol. 30, Issue 18, pp. 2496-2498 (2005)
http://dx.doi.org/10.1364/OL.30.002496


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Abstract

Long-term optical phase-coherent two-color femtosecond pulses were generated by use of passively timing-synchronized Ti:sapphire and Cr:forsterite lasers. The relative carrier-envelope phase relation was fixed by an active feedback loop. The accumulated phase noise from 10 mHz to 1 MHz of the locked beat note was 0.43 rad, showing tight phase locking. The optical frequency fluctuation between two femtosecond combs was submillihertz, with a 1 s averaged counter measurement over 3400 s, leading to a long-term femtosecond frequency-comb connection.

© 2005 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(320.7090) Ultrafast optics : Ultrafast lasers

Citation
Yohei Kobayashi, Dai Yoshitomi, Masayuki Kakehata, Hideyuki Takada, and Kenji Torizuka, "Long-term optical phase locking between femtosecond Ti:sapphire and Cr:forsterite lasers," Opt. Lett. 30, 2496-2498 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-18-2496

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