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Applied Optics

Applied Optics


  • Vol. 44, Iss. 12 — Apr. 20, 2005
  • pp: 2416–2420

Tenth-order rational-harmonic frequency multiplication and detuning of optical pulse injection-locked erbium-doped fiber laser

Gong-Ru Lin and Jung-Rung Wu  »View Author Affiliations

Applied Optics, Vol. 44, Issue 12, pp. 2416-2420 (2005)

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The jitter and frequency-detuning dynamics of a 10-GHz rational-harmonic frequency-multiplied pulse train generated from an erbium-doped fiber laser (EDFL) is studied. The EDFL is self-feedback seeded and optically injection locked by a gain-switched laser diode (GSLD) with a pulse width and an average power of 17.6 ps and 0.2 mW, respectively, at a repetition frequency of 1 GHz. The repetition frequency of the optical pulse train can be tenth-order multiplied by a slight detuning of the repetition frequency of the GSLD to match the rational-harmonic injection-locked condition of the EDFL. As the repetition frequency is multiplied from 1 to 10 GHz, the peak power, the pulse width, and the frequency-detuning bandwidth of the injection-locked EDFL pulses decrease from 1.2 to 0.3 W, from 40 to 21 ps, and from 40 to 9 kHz, respectively. The timing jitter of the injection-locked EDFL repeated at 1 GHz remains unchanged (<0.5 ps) within the detuning bandwidth, which inevitably increases to 1.2 ps after tenth-order multiplication.

© 2005 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.3520) Lasers and laser optics : Lasers, injection-locked

Original Manuscript: March 24, 2004
Revised Manuscript: October 24, 2004
Manuscript Accepted: November 16, 2004
Published: April 20, 2005

Gong-Ru Lin and Jung-Rung Wu, "Tenth-order rational-harmonic frequency multiplication and detuning of optical pulse injection-locked erbium-doped fiber laser," Appl. Opt. 44, 2416-2420 (2005)

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