Acousto-Optic Tunable Filter (AOTF) with Increasing Nonlinearity and Loss

C. S. Sobrinho, M. G. da Silva, A. S. B. Sombra

DOI: 10.14209/its.2002.776

Evento: 2002 International Telecommunications Symposium (ITS2002)

Keywords:

Abstract

"In this paper we did a study of the transmission characteristics of the AOTF operating with ultra-short light pulses (2ps), for soliton and non-soliton propagation regimes. In a preliminary study one has considered the performance of the device, with several lengths, operating in the nonlinear regime without loss and in the presence of loss. In this paper one considers the device of length 0.25mm with 4dB/mm of loss and constructed with several increasing non-linearity profiles. We compare five simple coefficients of self phase modulation (SPM) profiles, namely: linear, Gaussian, exponential, logarithm and constant. From our study, we suggest the best profile region of the non-linearity parameter to recover the original performance in the nonlinear transmission of the AOTF and to overcome the effect of the intrinsic loss in the device."

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