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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 2 — Jan. 23, 2006
  • pp: 570–574

Tunable gain-clamped double-pass Erbium-doped fiber amplifier

Lilin Yi, Li Zhan, Weisheng Hu, Qianxin Tang, and Yuxing Xia  »View Author Affiliations


Optics Express, Vol. 14, Issue 2, pp. 570-574 (2006)
http://dx.doi.org/10.1364/OPEX.14.000570


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Abstract

A tunable, gain-clamped (GC) double-pass Erbium-doped fiber amplifier (EDFA) with a linear laser-cavity configuration has been demonstrated. It solves the problems existing in the conventional linear-cavity GC-EDFA based on two fiber Bragg gratings (FBGs), in which the clamped-gain is very difficult to be tuned. In the new GC-EDFA, the lasing oscillation for clamping the gain is produced in a linear cavity comprised by a FBG and a fiber reflection mirror (FRM). Between them, a filter filters out the lasing light, and then a variable optical attenuator changes the loss of the laser cavity for tuning the clamped-gain. Meanwhile, the double-pass configuration is used to enhance the gain efficiency, and therefore the level of the clamped-gain is greatly improved.

© 2006 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.4480) Lasers and laser optics : Optical amplifiers

ToC Category:
Fiber Optics and Optical Communications

Citation
Lilin Yi, Li Zhan, Weisheng Hu, Qianxin Tang, and Yuxing Xia, "Tunable gain-clamped double-pass Erbium-doped fiber amplifier," Opt. Express 14, 570-574 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-2-570


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References

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