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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 23, Iss. 4 — Feb. 15, 1998
  • pp: 286–288

Wideband phase-noise measurement of mode-locked laser pulses by a demodulation technique

Hidemi Tsuchida  »View Author Affiliations


Optics Letters, Vol. 23, Issue 4, pp. 286-288 (1998)
http://dx.doi.org/10.1364/OL.23.000286


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Abstract

A new method is proposed and demonstrated for measuring the phase noise (pulse timing fluctuations) of mode-locked lasers. The instantaneous phases of the pulse intensity are extracted in a time domain, and the phase-noise power spectral density is calculated from the demodulated signals. Compared with the conventional method based on the single-sideband phase-noise measurement, the proposed method has a larger dynamic range and a wider frequency span. The phase noise of a mode-locked Cr:LiSAF laser is measured for 50-mHz–1-MHz Fourier frequencies.

© 1998 Optical Society of America

OCIS Codes
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.0320) Ultrafast optics : Ultrafast optics
(350.5030) Other areas of optics : Phase

Citation
Hidemi Tsuchida, "Wideband phase-noise measurement of mode-locked laser pulses by a demodulation technique," Opt. Lett. 23, 286-288 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-4-286

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