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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 45, Iss. 14 — May. 10, 2006
  • pp: 3361–3366

Wavelength switching in an actively mode-locked Fabry–Perot laser diode with a highly dispersive external cavity

Young Jae Kim and Dug Young Kim  »View Author Affiliations

Applied Optics, Vol. 45, Issue 14, pp. 3361-3366 (2006)

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We demonstrate a simple and reliable scheme for wavelength switching in an actively harmonic mode-locked Fabry–Perot laser diode (FPLD) that is coupled to a highly dispersive external fiber cavity. Wavelength switching between FPLD modes is achieved by detuning of the modulation frequency applied to the FPLD. A side-mode suppression ratio of as much as 40   dB is maintained, and the supermode noise suppression ratio is more than 50   dB for the whole wavelength switching operation range of 4.7   nm when the pulse repetition rate is 2   GHz . The wavelength- switching mechanism of our laser is based on the wavelength-dependent cavity resonance frequency shift that is due to chromatic dispersion, and we verify that our experimental results closely coincide with analytical results.

© 2006 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2380) Fiber optics and optical communications : Fiber optics sources and detectors
(140.3510) Lasers and laser optics : Lasers, fiber
(250.5980) Optoelectronics : Semiconductor optical amplifiers

Original Manuscript: November 17, 2005
Manuscript Accepted: December 13, 2005

Young Jae Kim and Dug Young Kim, "Wavelength switching in an actively mode-locked Fabry-Perot laser diode with a highly dispersive external cavity," Appl. Opt. 45, 3361-3366 (2006)

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