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首页> 外文会议>Conference on Optical Transmission Systems and Equipment for WDM Networking, Jul 29-31, 2002, Boston, USA >Wideband and High Efficiency AHnAs/GaInAs Waveguide Photodetectors for 40-Gbps Receivers
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Wideband and High Efficiency AHnAs/GaInAs Waveguide Photodetectors for 40-Gbps Receivers

机译：适用于40 Gbps接收器的宽带高效AHnAs / GaInAs波导光电探测器

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摘要

Two types of waveguide photodiodes (WG-PD) - an evanescently coupled photodiode (EC-WG-PD) and a separated-absorption-and-multiplication avalanche photodiode (SAM-WG-APD) - have been developed for use in 40-Gbps receivers. The EC-PD is much more robust than a conventional WG-PD under high optical input operation because of its distributed absorbed optical power density along the light propagation in the waveguide. The EC-WG-PD simultaneously exhibited a high external responsivity of 0.96 AAV, a wide bandwidth of >40 GHz, and as high as 10-mA photocurrent operation. On the other hand, the SAM-WG-APD has a wide bandwidth of 30-35 GHz and a gain-bandwidth product of 140-180 GHz as a result of its small waveguide mesa structure and a thin multiplication layer. Record highest receiver sensitivities of -28.8 dBm at 10 Gbps and -19.6 dBm at 40 Gbps have been achieved for the first time.
机译：已开发出两种类型的波导光电二极管（WG-PD）-van逝耦合光电二极管（EC-WG-PD）和分离吸收倍增雪崩光电二极管（SAM-WG-APD）-用于40 Gbps接收者。在高光输入操作下，EC-PD比传统的WG-PD坚固得多，这是因为EC-PD沿着波导中的光传播分布有吸收光功率密度。 EC-WG-PD同时展现出0.96 AAV的高外部响应度，> 40 GHz的宽带宽以及高达10mA的光电流运行。另一方面，由于SAM-WG-APD具有小的波导台面结构和较薄的乘法层，因此具有30-35 GHz的宽带宽和140-180 GHz的增益带宽积。首次实现了最高记录的接收器灵敏度，在10 Gbps时为-28.8 dBm，在40 Gbps时为-19.6 dBm。

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