Optical transducers with frequency output
| Autor: | Maksat Kolimoldayev, Volodymyr Stepanovych Osadchuk, Paweł Komada, Iaroslav O. Osadchuk, Oleksandr Volodymyrovych Osadchuk, Kanat Mussabekov |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Negative resistance Photoresistor Transistor 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention Photodiode 010309 optics Hybrid integrated circuit law 0103 physical sciences Optoelectronics Equivalent circuit 0210 nano-technology business Electrical impedance Sensitivity (electronics) |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2280892 |
| Popis: | In this work the characteristics research of microelectronic transducers of optical radiation with a frequency output signal on the basis of a hybrid integrated circuit consisting of a bipolar and a field-effect transistor with a Schottky barrier is presented. The connection of an external inductance to electrodes a collector - drain allows to implement the auto generating device. The frequency of the device generation depends on power of optical radiation falling on photosensing elements as a photoresistor, photodiode and photosensing transistors switched on in a circuit of the self-excited oscillator. The impedance on electrodes the collector - drain of bipolar and field transistors has capacitive reactive part and negative active resistance, which compensates power losses in a tuning circuit of the device. On the base of a nonlinear equivalent circuit of the transducer on an alternating current the analytical expressions of function of transformation and equation of sensitivity are obtained. The sensitivity of optical transducers lays in a range from 25 kHz/μWt/cm 2 up to 150 kHz/μWt/cm 2 . |
| Databáze: | OpenAIRE |
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