| Autor: |
R. Blundell, Robert Kimberk, E.K. Duerr, Cheuk-yu Edward Tong, S.D. Calawa, K. A. McIntosh, S.M. Duffy, Simon Verghese |
| Rok vydání: |
2003 |
| Předmět: |
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| Zdroj: |
1999 IEEE MTT-S International Microwave Symposium Digest (Cat. No.99CH36282). |
| DOI: |
10.1109/mwsym.1999.779440 |
| Popis: |
We report the first successful demonstration of a photomixer local oscillator (LO) integrated with a superconducting heterodyne detector. The photomixer LO generated the difference frequency of two diode lasers by optical heterodyne conversion in low temperature-grown GaAs. The measured receiver noise temperature, 331 K at 630 GHz, compares favorably with that achieved using a varactor multiplier LO. We also report the design of a high power distributed photomixer structure. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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