| タイトル | Tunable superlattice p-i-n photodetectors: Characteristics, theory, and applications |
| 著者（英） | Eng, Sverre T.; Yariv, Amnon; Andrekson, Peter A.; Larsson, Anders |
| 著者所属（英） | Jet Propulsion Lab., California Inst. of Tech.|Chalmers Univ. of Technology|California Inst. of Tech. |
| 発行日 | 1988-05-01 |
| 言語 | eng |
| 内容記述 | Extended measurements and theory on the recently developed monolithic wavelength demultiplexer consisting of voltage-tunable superlattice p-i-n photodetectors in a waveguide configuration 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. |
| NASA分類 | ELECTRONICS AND ELECTRICAL ENGINEERING |
| レポートNO | 88A45785 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/369853 |
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