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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 33 — Nov. 20, 2007
  • pp: 8089–8094

Multimode laser emission from dye doped polymer optical fiber

Mavila Sheeba, Kannampuzha J. Thomas, Mandamparambil Rajesh, Vadakkedathu P. N. Nampoori, Chakkalakkal P. G. Vallabhan, and Padmanabhan Radhakrishnan  »View Author Affiliations


Applied Optics, Vol. 46, Issue 33, pp. 8089-8094 (2007)
http://dx.doi.org/10.1364/AO.46.008089


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Abstract

Multimode laser emission is observed in a polymer optical fiber doped with a mixture of Rhodamine 6G (Rh 6G) and Rhodamine B (Rh B) dyes. Tuning of laser emission is achieved by using the mixture of dyes due to the energy transfer occurring from donor molecule (Rh 6G) to acceptor molecule (Rh B). The dye doped poly(methyl methacrylate)-based polymer optical fiber is pumped axially at one end of the fiber using a 532 ‚ÄČ nm pulsed laser beam from a Nd:YAG laser and the fluorescence emission is collected from the other end. At low pump energy levels, fluorescence emission is observed. When the energy is increased beyond a threshold value, laser emission occurs with a multimode structure. The optical feedback for the gain medium is provided by the cylindrical surface of the optical fiber, which acts as a cavity. This fact is confirmed by the mode spacing dependence on the diameter of the fiber.

© 2007 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2340) Fiber optics and optical communications : Fiber optics components

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 11, 2007
Revised Manuscript: July 29, 2007
Manuscript Accepted: October 17, 2007
Published: November 19, 2007

Citation
Mavila Sheeba, Kannampuzha J. Thomas, Mandamparambil Rajesh, Vadakkedathu P. N. Nampoori, Chakkalakkal P. G. Vallabhan, and Padmanabhan Radhakrishnan, "Multimode laser emission from dye doped polymer optical fiber," Appl. Opt. 46, 8089-8094 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-33-8089

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