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Optics Express

Optics Express

  • Editor: C. Martijin de Sterke
  • Vol. 19, Iss. 7 — Mar. 28, 2011
  • pp: 6290–6295

Mode-locking and Q-switching in multi-wavelength fiber ring laser using low frequency phase modulation

Chang Su Jun and Byoung Yoon Kim  »View Author Affiliations

Optics Express, Vol. 19, Issue 7, pp. 6290-6295 (2011)

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We describe experimental investigation of pulsed output from a multi-wavelength fiber ring laser incorporating low frequency phase modulation with large modulation amplitude. The Erbium-doped fiber (EDF) ring laser generated more than 8 wavelength channels with the help of a phase modulator operating at 26.2 kHz and a periodic intra-cavity filter. For most cases, the laser output is pulsed in the form of mode-locking at 5.62 MHz and/or Q-switching at harmonic and sub-harmonic of the phase modulation frequency. Chaotic pulse output is also observed. The behavior of the output pulses are described as functions of pump power and phase modulation amplitude. The relative intensity noise (RIN) value of a single wavelength channel is measured to be under −100 dB/Hz (−140 dB/Hz beyond 1.5 GHz).

© 2011 OSA

OCIS Codes
(140.1540) Lasers and laser optics : Chaos
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.4050) Lasers and laser optics : Mode-locked lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 27, 2011
Revised Manuscript: February 18, 2011
Manuscript Accepted: February 18, 2011
Published: March 18, 2011

Chang Su Jun and Byoung Yoon Kim, "Mode-locking and Q-switching in multi-wavelength fiber ring laser using low frequency phase modulation," Opt. Express 19, 6290-6295 (2011)

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