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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 1 — Jan. 1, 2008
  • pp: 64–66

All-fiber bidirectional passively mode-locked ring laser

Khanh Kieu and Masud Mansuripur  »View Author Affiliations


Optics Letters, Vol. 33, Issue 1, pp. 64-66 (2008)
http://dx.doi.org/10.1364/OL.33.000064


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Abstract

We report the design and operation of a novel all-fiber bidirectional passively mode-locked ring laser. An erbium-doped fiber was chosen as the active element in a ring cavity arrangement. A short segment of a fiber taper embedded in carbon nanotubes/polymer composite, acting as a saturable absorber, was used to enable bidirectional mode locking. The laser generates two stable femtosecond pulse trains in opposite directions. A beat note of about 2 MHz , having a bandwidth of less than 2 kHz , is measured when the pulses propagating in opposite directions are (temporally) overlapped at a photodetector. We believe this device will find important applications in precision rotation sensing.

© 2008 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(320.5550) Ultrafast optics : Pulses

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 27, 2007
Revised Manuscript: October 22, 2007
Manuscript Accepted: October 24, 2007
Published: December 20, 2007

Citation
Khanh Kieu and Masud Mansuripur, "All-fiber bidirectional passively mode-locked ring laser," Opt. Lett. 33, 64-66 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-1-64

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