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Design of a high-speed optical dark-soliton detector using a phase-shifted waveguide Bragg grating in reflection

机译:利用相移波导布拉格光栅反射的高速光学暗孤子探测器的设计

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摘要

A theoretical study of a new application of a simple pi-phase-shifted waveguide Bragg grating (PSWBG) in reflection mode as a high-speed optical dark-soliton detector is presented. The PSWBG consists of two concatenated identical uniform waveguide Bragg gratings with a pi phase shift between them. The reflective PSWBG, with grating reflectivities equal to 0.9, a free spectral range of 1.91 THz, and a nonlinear phase response, can convert a 40 Gbit/s noisy dark-soliton signal into a high-quality 40 Gbit/s return-to-zero signal with a peak power level of approx17.5 dB greater than that by the existing Mach-Zehnder interferometer with free spectral range of 1.91 THz and a linear phase response.
机译:提出了一种简单的π相移波导布拉格光栅(PSWBG)在反射模式下作为高速光学暗孤子探测器的新应用的理论研究。 PSWBG由两个串联的相同均匀波导布拉格光栅组成,它们之间具有pi相移。反射PSWBG的光栅反射率等于0.9,自由光谱范围为1.91 THz,并且具有非线性相位响应,可以将40 Gbit / s的嘈杂暗孤子信号转换为高质量的40 Gbit / s的返回至零信号,其峰值功率电平比现有Mach-Zehnder干涉仪的峰值功率电平高约17.5 dB,自由频谱范围为1.91 THz,线性相位响应。

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