Design of phase-shifted long-period grating device and its application as gain-flattening fiber filter

Yinian Zhu; Beatrys M. Lacquet; Pieter L. Swart

doi:10.1117/12.427044

8 May 2001 Design of phase-shifted long-period grating device and its application as gain-flattening fiber filter

Yinian Zhu, Beatrys M. Lacquet, Pieter L. Swart

Proceedings Volume 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001); (2001) https://doi.org/10.1117/12.427044
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '01), 2001, Yokohama, Japan

Abstract

The transmission characteristics of phase-shifted long- period gratings are simulated theoretically by a combination of couple-mode theory and fundamental-matrix method. It is suggested that a phase-shifted LPG device cascaded with another normal LPG can be used to flatten the gain spectrum of an erbium-doped fiber amplifier with all three gain peaks. The results of simulations have shown that a broadband amplifier with peak-to-peak 0.7 dB gain variation over 36 nm can be practically realized. It proves that such a gain-flattening fiber filter is indeed plausible, and has a potential application in gain-flattening in dense wavelength division multiplexing telecommunication systems.

Citation Download Citation

Yinian Zhu, Beatrys M. Lacquet, and Pieter L. Swart "Design of phase-shifted long-period grating device and its application as gain-flattening fiber filter", Proc. SPIE 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001), (8 May 2001); https://doi.org/10.1117/12.427044

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