Browsing by Author "Shum, P"

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Design and analysis of VCSEL based two-dimension wavelength converter
(2003-07-14)
Liu, H
;
Shum, P
;
Kao, MS
;
電信工程研究所
;
Institute of Communications Engineering
A novel two-dimensional vertical cavity surface emission laser (VCSEL) based wavelength converter is proposed. We developed a two-dimensional transmission line laser model (TLLM) to analyze the proposed wavelength converter. This model takes into account Bragg reflectors by using the modified connecting matrix. Therefore, accurate and efficient modeling of the VCSEL structure is achieved. Extinction ratio of the output signal is investigated by considering input signal power, wavelength, facet reflectivity and cavity diameter. (C) 2003 Optical Society of America.
Theoretical study of extinction ratio and frequency chirping of VCSEL-based two-dimensional wavelength converter
(2004-02-01)
Liu, H
;
Shum, P
;
Kao, MS
;
電信工程研究所
;
Institute of Communications Engineering
A novel two-dimensional (2-D) vertical-cavity surface-emission laser (VCSEL)-based wavelength converter was reported, in which the VCSEL was used both as the laser source for the probe wave and as the semiconductor amplifier for performing cross-gain modulation. We have developed a complete 2-D transmission line laser model to analyze the proposed structure. The optimization of the wavelength location, input power level, as well as the reflectivity of the VCSEL facet have been done with respect to the, extinction ratio and peak chirp frequency.