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

Xue Wen Chen; Aping Zhang; Sailing He; Hwa Yaw Tam

doi:10.1117/12.576799

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

Xue Wen Chen, Aping Zhang, Sailing He, Hwa Yaw Tam

The Hong Kong Polytechnic University

Research output: Journal article publication › Conference article › Academic research › peer-review

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.

Original language	English
Article number	170
Pages (from-to)	1021-1028
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	5623
Issue number	PART 2
DOIs	https://doi.org/10.1117/12.576799
Publication status	Published - 1 Dec 2004
Event	Passive Components and Fiber-based Devices - Beijing, China Duration: 9 Nov 2004 → 11 Nov 2004

Keywords

Erbium-doped fiber amplifier
Gain flattening
Genetic algorithm
Long-period fiber gratings

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

More information

10.1117/12.576799

Cite this

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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.",

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AB - 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.

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

Abstract

Keywords

ASJC Scopus subject areas

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