Stitched long-period fiber gratings for gain-flattening of broadband EDFAs

Xue-Wen Chen; A. Ping Zhang; Sailing He; Hwa-Yaw Tam

doi:10.1117/12.576799

10 January 2005 Stitched long-period fiber gratings for gain-flattening of broadband EDFAs

Xue-Wen Chen, A. Ping Zhang, Sailing He, Hwa-Yaw Tam

Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.576799
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

In this paper, we report the optimal designs of stitched long-period fiber gratings (SLPGs) for gain-flattening of broadband erbium-doped fiber amplifiers (EDFAs) by using the genetic algorithm. Two measured gain spectra with bandwidth of 50nm and 80nm have been flattened within ±0.64dB and ±0.73dB, respectively, by using optimally designed SLPG devices. Such an SLPG device possesses not only a flexible spectrum-shaping capability, but also a simple index-modulation profile suitable for practical implementation. The point-by-point grating writing technique is employed to demonstrate the fabrication of the designed SLPG filters.

Citation Download Citation

Xue-Wen Chen, A. Ping Zhang, Sailing He, and Hwa-Yaw Tam "Stitched long-period fiber gratings for gain-flattening of broadband EDFAs", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.576799

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