31 October 2016 All-optical quantization by slicing supercontinuum in a Ge11.5As24Se64.5 rib waveguide
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In this paper, an integratable spectrum quantization schema for all-optical analog-to-digital conversion (AOADC) is demonstrated in Ge11.5As24Se64.5 rib film waveguide by slicing the supercontinuum. Owing to the high nonlinearity coefficient of 137.8 W-1m-1, the input pulse peak power are very low which varies from 540 to 900mW and then the broadened spectrum is filtered with an arrayed waveguide grating. As a result, 4-bit quantization resolution along with effective number of bit (ENOB) of 3.985 and a signal-to-noise ratio of 23.99 dB are achieved. It is believed that this proposed schema is suitable for integratable AOADC with low power consumption.
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Yanlei Zhang, Yanlei Zhang, Chao Mei, Chao Mei, Xianting Zhang, Xianting Zhang, Shuai Kang, Shuai Kang, Jinhui Yuan, Jinhui Yuan, Kuiru Wang, Kuiru Wang, Binbin Yan, Binbin Yan, Zhe Kang, Zhe Kang, Xinzhu Sang, Xinzhu Sang, Chongxiu Yu, Chongxiu Yu, } "All-optical quantization by slicing supercontinuum in a Ge11.5As24Se64.5 rib waveguide", Proc. SPIE 10019, Optoelectronic Devices and Integration VI, 100191A (31 October 2016); doi: 10.1117/12.2245974; https://doi.org/10.1117/12.2245974

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