Title :
Analysis of Small-Signal Frequency Response of Vertical Cavity Semiconductor Optical Amplifiers
Author :
Deng, Guo ; Pan, Wei
Author_Institution :
Center for Inf. Photonics & Commun., Southwest Jiaotong Univ., Chengdu, China
Abstract :
Based on the carrier rate equations and the travelling wave equations for the forward and the backward optical fields in vertical cavity semiconductor optical amplifier (VCSOA), a set of differential equations in terms of the perturbations of the optical fields and the carrier density in the cavity are derived by employing the small signal analysis. With the use of these equations, we have investigated the small-signal frequency response characteristics of VCSOA in the saturation region when the input is an amplitude-modulated signal. The results which agree with the reported experimental results show that the VCSOA has high-pass frequency response characteristics.
Keywords :
semiconductor optical amplifiers; surface emitting lasers; travelling wave tubes; amplitude modulated signal; carrier rate equations; high-pass frequency response; optical fields; small signal analysis; small-signal frequency response; travelling wave equations; vertical cavity semiconductor optical amplifiers; Charge carrier density; Differential equations; Frequency response; Optical fiber communication; Optical filters; Optical saturation; Optical signal processing; Semiconductor optical amplifiers; Signal analysis; Stimulated emission;
Conference_Titel :
Photonics and Optoelectronic (SOPO), 2010 Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4963-7
Electronic_ISBN :
978-1-4244-4964-4
DOI :
10.1109/SOPO.2010.5504061
