KEYWORDS: Photodiodes, V band, Signal attenuation, Optoelectronics, Oscillators, PIN photodiodes, Capacitance, Modulation, Radio optics, Frequency conversion
A modified uni-traveling-carrier photodiode-based V-band optoelectronic mixer is demonstrated which can up-convert
intermediate-frequency (IF) signals with both the 59.5 GHz local oscillator (LO) and the IF signals in optical form. By
properly choosing the ratio between the injected optical LO and IF signals, a high up-converted signal power of -13.1
dBm was obtained at 30 mA of photocurrent and 1.6 V reverse bias without any cooling operation. When a thermal
electric cooler is used, up-converted signal power as high as -4.7 dBm was obtained at 70 mA of photocurrent and 3.5 V
reverse bias.
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