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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 6 — Mar. 15, 2014
  • pp: 1653–1656

Method for estimating gain coefficient spectrum of erbium-doped fiber based on net gain–loss measurement employing 4I13/2 level pumping

Hirotaka Ono, Makoto Yamada, Kentaro Ichii, and Shoichiro Matsuo  »View Author Affiliations


Optics Letters, Vol. 39, Issue 6, pp. 1653-1656 (2014)
http://dx.doi.org/10.1364/OL.39.001653


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Abstract

The method for estimating the gain coefficient spectrum of an erbium-doped fiber (EDF) is proposed and demonstrated experimentally. The method employs a net gain–loss measurement that uses the I413/2 level pumping of the EDF and the McCumber relation. A formula used to obtain the quotient of the gain and loss coefficient from the net gain–loss measurement is derived to determine the parameter in the McCumber relation. It is confirmed that the gain coefficient spectrum of an EDF estimated with the method coincides with the value estimated using a conventional net gain–loss measurement that employs the I411/2 level pumping. The method is successfully applied to an erbium/ytterbium-doped fiber, for which it is impossible to perform a conventional net gain–loss measurement with pumping at the I411/2 level of erbium ions because of the absorption transition of ytterbium ions from F27/2 to F25/2 levels.

© 2014 Optical Society of America

OCIS Codes
(060.2410) Fiber optics and optical communications : Fibers, erbium
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 27, 2013
Revised Manuscript: January 29, 2014
Manuscript Accepted: February 14, 2014
Published: March 14, 2014

Citation
Hirotaka Ono, Makoto Yamada, Kentaro Ichii, and Shoichiro Matsuo, "Method for estimating gain coefficient spectrum of erbium-doped fiber based on net gain–loss measurement employing 4I13/2 level pumping," Opt. Lett. 39, 1653-1656 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-6-1653

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