Traveling-wave photodetectors with high power-bandwidth and gain-bandwidth product performance

被引:8
|
作者
Lasaosa, D [1 ]
Shi, JW
Pasquariello, D
Gan, KG
Tien, MC
Chang, HH
Chu, SW
Sun, CK
Chiu, YJ
Bowers, JE
机构
[1] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
[2] Natl Cent Univ, Dept Elect Engn, Taoyuan 320, Taiwan
[3] Philips Res Labs, Eindhoven, Netherlands
[4] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
[5] Natl Taiwan Univ, Grad Inst Electro Opt Engn, Taipei 10617, Taiwan
[6] Natl Sun Yat Sen Univ, Inst Electroopt Engn, Kaohsiung 804, Taiwan
关键词
amplifier; GaAs; high speed; InGaAsP; photodetector; traveling wave;
D O I
10.1109/JSTQE.2004.833963
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
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.
引用
收藏
页码:728 / 741
页数:14
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