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This paper firstly briefly introduces and reviews the recent developments in phase-shifting optical quantization for high-speed microwave signals, which is one promising branch in all-optical analog-to-digital conversion. After that, a phase-shifting optical quantization system with a sampling rate of 40 GS/s and a theoretical read-out-bits of 4-bit is built, and practical considerations for further...
A novel balanced detection threshold scheme for all-optical analog-to-digital conversion is experimentally demonstrated. A 4-bit 10-GSamples/s all-optical analog-to-digital converter based on phase-shifted optical quantization and a balanced detection threshold scheme is realized to quantize a 9.9-GHz sinusoidal electrical signal, achieving a spur-free dynamic range of 24.2 dB. Compared with single-ended...
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