W-band waveguide photomixer using a uni-traveling-carrier photodiode with 2-mW output |
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| Authors: | Ueda A. Noguchi T. Iwashita H. Sekimoto Y. Ishiguro M. Takano S. Nagatsuma T. Ito H. Hirata A. Ishibashi T. |
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| Affiliation: | Nat. Astron. Obs. of Japan, Tokyo, Japan; |
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| Abstract: | Developed a W-band (75-110 GHz) waveguide photomixer with a uni-traveling carrier photodiode, which can be driven by two 1.5-/spl mu/m lasers. It generates an output power of 2.2/spl plusmn/0.2 mW at 100 GHz with a laser power of less than 100 mW, and its relative power variation is as small as 3 dB across the entire frequency range of the W-band. A 100-GHz superconductor-insulator-superconductor receiver driven by this photomixer shows the same noise temperature around 26 K as that driven by a conventional Gunn oscillator. |
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