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Applied Optics

Applied Optics


  • Vol. 44, Iss. 17 — Jun. 10, 2005
  • pp: 3545–3551

Wavelength tuning in optically mode-locked semiconductor fiber ring lasers with linearly chirped fiber Bragg gratings

Hong Cao and Lawrence R. Chen  »View Author Affiliations

Applied Optics, Vol. 44, Issue 17, pp. 3545-3551 (2005)

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We demonstrate wavelength tuning in single-wavelength and multiwavelength semiconductor fiber ring lasers that are mode locked with an optically injected control signal. A semiconductor optical amplifier is used to provide gain as well as to function as an optically controlled mode-locking element. Linearly chirped fiber Bragg gratings—single or superimposed—are used to define the lasing wavelengths as well as to provide wavelength tunability and allow for multiwavelength operation. We obtain pulses of tens of picoseconds in duration when we inject a sinusoidal optical control signal into the laser cavity, and we can tune the lasing wavelength(s) over the reflection bandwidth(s) of the grating(s) by simply changing the frequency of the injected control signal.

© 2005 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers

Original Manuscript: October 20, 2004
Revised Manuscript: January 18, 2005
Manuscript Accepted: February 4, 2005
Published: June 10, 2005

Hong Cao and Lawrence R. Chen, "Wavelength tuning in optically mode-locked semiconductor fiber ring lasers with linearly chirped fiber Bragg gratings," Appl. Opt. 44, 3545-3551 (2005)

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