Gain-clamped semiconductor optical amplifiers based on compensating light: Theoretical model and performance analysis

Jia, Xin-Hong; Wu, Ziyan; Guang-Qiong, Xia

doi:10.1016/j.optcom.2006.06.077

Cited by 2 publications

(1 citation statement)

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“…The forward and the backward optical fields can be described by the following equations [9,10], where A and B represent the complex amplitudes of the forward and the backward optical fields respectively, 1 i = − , N is the carrier density, g= g 0 (N-N tr ) is the material gain, N tr is the transparency carrier density, α is the material loss, Γ is the confinement factor, 1 2 / sig n c β π ν = denotes the propagation constant, n 1 is the effective refractive index of the active region, ν sig represents the frequency of the input optical signal, and c is the light velocity. Here the two complex amplitudes, A and B, are governed by the following boundary conditions,…”

Section: Theoreticalmentioning

confidence: 99%

Analysis of Small-Signal Frequency Response of Vertical Cavity Semiconductor Optical Amplifiers

Guo

Pan

2010

2010 Symposium on Photonics and Optoelectronics

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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.

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Section: Theoreticalmentioning

confidence: 99%