Traveling-wave photodetectors with high power-bandwidth and gain-bandwidth product performance
Traveling-wave photodetectors with high power-bandwidth and gain-bandwidth product performance
复制标题
具有高功率带宽和增益带宽产品性能的行波光电探测器
DOI：
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发表时间：
2004
影响因子：
4.9
通讯作者：
John E. Bowers
中科院分区：
文献类型：
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作者：
D. Lasaosa;Jin;D. Pasquariello;K. Gan;Ming;Hsu;S.;Chi;Yi;John E. Bowers
行波光电探测器（TWPD）是同时最大化外量子效率、电带宽和最大不饱和输出功率的有吸引力的方式。我们回顾了TWPD的最新进展。在800和1300 nm波长下，低温生长GaAs（LTG-GaAs）基金属-半导体-金属TWPD中观察到了创纪录的高峰值输出电压和超高速性能。一种同时获得高带宽和高外部效率的方法是行波放大器-光电检测器（TAP检测器），其在顺序或同时行波结构中组合增益和吸收。
Traveling-wave photodetectors (TWPDs) are an attractive way to simultaneously maximize external quantum efficiency, electrical bandwidth, and maximum unsaturated output power. We review recent advances in TWPDs. Record high-peak output voltage together with ultrahigh-speed performance has been observed in low-temperature-grown GaAs (LTG-GaAs)-based metal-semiconductor-metal TWPDs at the wavelengths of 800 and 1300 nm. An approach to simultaneously obtain high bandwidth and high external efficiency is a traveling-wave amplifier-photodetector (TAP detector) that combines gain and absorption in either a sequential or simultaneous traveling-wave structure.