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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 19 — Oct. 1, 2006
  • pp: 2842–2844

Tunable Er 3 + -doped fiber amplifiers covering S and C + L bands over 1490 1610 nm based on discrete fundamental-mode cutoff filters

Nan-Kuang Chen, Kuei-Chu Hsu, Sien Chi, and Yinchieh Lai  »View Author Affiliations


Optics Letters, Vol. 31, Issue 19, pp. 2842-2844 (2006)
http://dx.doi.org/10.1364/OL.31.002842


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Abstract

We demonstrate thermo-optically tunable Er 3 + -doped fiber amplifiers covering S and C + L bands ( 1490 1610 nm ) using fundamental-mode cutoff filters discretely located in a 17.5 m long standard Er 3 + -doped fiber. The material dispersion and waveguide structure of the tapered fibers are locally modified to produce high-cutoff-efficiency filters that make the unwanted amplified spontaneous emission highly attenuated at the longer wavelengths, and the optical gain is thus moved toward the shorter wavelengths. The maximal signal gains are measured to be 18.92, 37.18, and 15.19 dB with 980 nm pump power of 135 mW in the S, C, and L bands, respectively.

© 2006 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(160.6840) Materials : Thermo-optical materials

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 16, 2006
Revised Manuscript: July 18, 2006
Manuscript Accepted: July 20, 2006
Published: September 11, 2006

Citation
Nan-Kuang Chen, Kuei-Chu Hsu, Sien Chi, and Yinchieh Lai, "Tunable Er3+-doped fiber amplifiers covering S and C+L bands over 1490-1610 nm based on discrete fundamental-mode cutoff filters," Opt. Lett. 31, 2842-2844 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-19-2842

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