Optical coding scheme for all-optical analog-to-digital conversion using asymmetrical Y-branch waveguide

Tang, Xionggui; Liao, Jing; Lu, Rongguo; Li, Heping; Zhang, Xiaoxia; Zhang, Lin; Liu, Yongzhi

doi:10.1016/j.optcom.2011.01.009

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“…Each spectrally encoded signal can be considered as WDM Demux signal. These WDM Demux signals after optical quantization can be easily converted to digital optical codes by using various kinds of optical coding schemes [9]- [14].…”

Section: Introductionmentioning

confidence: 99%

10-GS/s 5-bit Real-time Optical Quantization for Photonic Analog-to-Digital Conversion

Satoh

Takahashi

Matsui

et al. 2012

IEEE Photon. Technol. Lett.

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We report the experimental demonstration of a 10-GS/s 5-bit real-time optical quantization using the soliton self-frequency shift (SSFS) and multistage spectral compression. We prove the feature of sampling rate transparency at 10 GS/s by transmitting 10-Gb/s multi-intensity level quasi analog signals through our 5-bit optical quantizer. Furthermore, to confirm the performance of our quantizer, we measure the bit-error-rate and calculate the effective number of bits, the integral nonlinearity error, and the differential nonlinearity error.Index Terms-Photonic analog-to-digital conversion, pulse compression, soliton self-frequency shift, spectral compression.

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Section: Introductionmentioning

confidence: 99%