Tunable superlattice p-i-n photodetectors: characteristics, theory, and application
Tunable superlattice p-i-n photodetectors: characteristics, theory, and application
复制标题
可调谐超晶格 p-i-n 光电探测器：特性、理论和应用
DOI：
10.1109/3.195
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发表时间：
1988
影响因子：
2.5
通讯作者：
A. Yariv
中科院分区：
文献类型：
--
作者：
A. Larsson;P. Andrekson;S. Eng;A. Yariv
讨论了最近研制的单片波长解复用器的扩展测量和理论，该解复用器由波导结构中的电压可调超晶格p-i-n光电探测器组成。它示出，该设备是能够解复用和检测两个光信号的波长分离为20 nm直接进入不同的电通道，在1 Gb/s的数据速率和串扰衰减在20和28 dB之间变化，这取决于偏振。在100 Mb/s的数据速率下的最小可接受串扰衰减被确定为10 dB。证明了该器件作为线偏振光偏振角传感器的可行性。光生载流子的量子威尔斯的发射理论，因为这是潜在的速度限制在这些检测器的机制。结果表明，极性光学声子相互作用的热辅助隧穿理论能够预测与所观察到的时间响应一致的发射时间。>
Extended measurements and theory on the recently developed monolithic wavelength demultiplexer consisting of voltage-tunable superlattice p-i-n photodetectors in a waveguide confirmation are discussed. It is shown that the device is able to demultiplex and detect two optical signals with a wavelength separation of 20 nm directly into different electrical channels at a data rate of 1 Gb/s and with a crosstalk attenuation varying between 20 and 28 dB, depending on the polarization. The minimum acceptable crosstalk attenuation at a data rate of 100 Mb/s is determined to be 10 dB. The feasibility of using the device as a polarization angle sensor for linearly polarized light is also demonstrated. A theory for the emission of photogenerated carriers out of the quantum wells is included, since this is potentially a speed limiting mechanism in these detectors. It is shown that a theory of thermally assisted tunneling by polar optical phonon interaction is able to predict emission times consistent with the observed temporal response. >