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Your search keyword '"Weng Hong Chung"' showing total 3 results
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3 results on '"Weng Hong Chung"'

1. Spectral tunable reflector based on concatenated long-period and fiber Bragg gratings

Author

Xiaoming Tao, Hwa Yaw Tam, A-Ping Zhang, and Weng-Hong Chung

Subjects
PHOSFOS, Materials science, business.industry, Single-mode optical fiber, Physics::Optics, Reflector (antenna), Long-period fiber grating, Distributed Bragg reflector, Optics, Fiber Bragg grating, Fiber optic sensor, Condensed Matter::Superconductivity, Optoelectronics, business, Plastic optical fiber
Abstract

In this paper, a spectral tunable reflector based on concatenated long-period and fiber Bragg gratings, in which the cladding-mode-assisted recouplings occur is presented and the effect of grating phase on the mode recoupling mechanism is discussed.

Published
2005
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2. Optimization of step-changed long-period gratings for gain-flattening of EDFAs.

Author

A.P. Zhang, Xue-Wen Chen, Zu-Guang Guan, Sailing He, Hwa-Yaw Tam, and Weng-Hong Chung

Abstract

We report the use of the genetic algorithm to optimize the parameters of our previously proposed step-changed long-period gratings for gain-flattening of erbium-doped fiber amplifiers (EDFAs). The gain spectrum of an EDFA is flattened within ±0.35 dB over 30 nm through a suitable selection of the cladding mode and the optimization of the grating parameters. An amplitude-mask structure is proposed to simplify the fabrication process of the optimal grating structure. [ABSTRACT FROM PUBLISHER]

Published
2005
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