| Tartalom: |
http://hdl.handle.net/10890/60255 |
| Archívum: |
Műegyetem Digitális Archívum |
| Gyűjtemény: |
1. Tudományos közlemények, publikációk
Műszaki tudományok
Villamosmérnöki tudományok
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| Cím: |
A New High Efficiency Optical-Microwave Double Mixing Method
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| Létrehozó: |
Járó, Gábor
Berceli, Tibor
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| Dátum: |
2025-03-26T13:43:36Z
2025-03-26T13:43:36Z
1999-03-21
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| Tartalmi leírás: |
The widely used optical receivers apply mainly photodiodes to detect the optical intensity modulated signal. A relatively high sensitivity is achieved by properly matched transimpedance or distributed amplifiers [1-3]. In another method the modulated optical signal is mixed with a microwave signal in the photodiode producing an intermediate frequency signal [4-11]. Thus, heterodyne type reception is feasible. However, the mixing conversion has a higher loss compared to the direct detection.
In the new optical-microwave double mixing approach the conversion loss is much less than that of the direct detection offering a significant improvement in the reception sensitivity. The mixing product is even further increased by resonant enhancement providing 30 dB improvement in comparison to direct detection.
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| Típus: |
Könyvrészlet
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| Formátum: |
application/pdf
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| Azonosító: |
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