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We demonstrate that CMOS-compatible Si avalanche photodetectors (CMOS-APD) are very useful for microwave photonics applications. CMOS-APDs are fabricated with 0.18 mum standard CMOS technology. Using the CMOS-APD, radio-over-fiber systems for IEEE 802.11a WLAN are realized. In addition, fiber-supported 60 GHz self-heterodyne systems are implemented by utilizing the CMOS-APD as a harmonic optoelectronic...
We demonstrate a fiber-fed 60-GHz self-heterodyne system using a self-oscillating harmonic optoelectronic mixer (SO-HOM) based on a Si avalanche photodetector (APD) fabricated with 0.18 μm standard complementary metal-oxide-semiconductor (CMOS) process. The proposed SO-HOM consists of a CMOS-compatible APD and a feedback electrical loop for self-oscillation. It simultaneously performs photodetection...
We demonstrate radio-over-fiber (RoF) systems for IEEE 802.11a wireless local area network (WLAN) using Si avalanche photodetectors (APDs) fabricated in 0.18 μm standard complementary metal-oxide-semiconductor (CMOS) process. In order to achieve high optic-to-electric conversion efficiency and low-noise characteristics, the APD bias voltage is optimized with the evaluation of error vector magnitude...
We demonstrate a millimeter-wave self-injection-locked (SIL) oscillator having a long optical delay line as a feedback route. In the SIL oscillator, a part of output signal is self-injected into the oscillator after passing through a long optical delay line, resulting in locked oscillation and phase-noise reduction. By controlling the self-injection power, we achieve 30-GHz oscillation with a sidemode...
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