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首页> 外文期刊>IEEE Journal of Quantum Electronics >Monolithic Semiconductor Waveguide Device Concept for Picosecond Pulse Amplification, Isolation, and Spectral Shaping
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Monolithic Semiconductor Waveguide Device Concept for Picosecond Pulse Amplification, Isolation, and Spectral Shaping

机译：用于皮秒脉冲放大，隔离和频谱整形的单片半导体波导器件概念

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摘要

In this paper, a waveguide device concept, named IRIS, is presented. The device consists of a monolithic array of concatenated semiconductor optical amplifiers and saturable absorbers. We have theoretically investigated picosecond pulse transmission through these devices. The parameters used in the simulation are representative for InP-InGaAsP bulk gain material, operating in the 1550-nm region. Operated as an optical amplifier for picosecond pulses, the simulation results show increased pulse peak amplification and decreased temporal broadening of the pulses for the IRIS devices as compared to a semiconductor optical amplifier of equivalent length. Used as a nonlinear element to increase the optical bandwidth of a picosecond pulse, the spectra obtained with IRIS devices show an increased broadening and smoothness as compared to a semiconductor optical amplifier. Finally the feasibility for using the IRIS device as an optical isolator is shown. It is operated in a regime where the device is transparent for a picosecond pulse train, while it is absorbent for lower power reflections.
机译：在本文中，提出了一种名为IRIS的波导器件概念。该器件由串联的半导体光放大器和可饱和吸收器的单片阵列组成。我们从理论上研究了通过这些设备的皮秒脉冲传输。模拟中使用的参数代表InP-InGaAsP体增益材料，工作在1550 nm区域。作为皮秒脉冲的光放大器，仿真结果显示，与等长度的半导体光放大器相比，IRIS器件的脉冲峰值放大率提高，脉冲的时间展宽减小。与半导体光放大器相比，用IRIS器件获得的光谱用作非线性元素以增加皮秒脉冲的光带宽，显示出增加的展宽和平滑度。最后显示了将IRIS器件用作光隔离器的可行性。它在一种状态下运行，对于皮秒脉冲序列，该设备是透明的，而对于较低的功率反射它是吸收性的。

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