All-optical quantization scheme by slicing the supercontinuum in a chalcogenide horizontal slot waveguide. (31st July 2015)

• Record Type: Journal Article
• Authors: Kang, Shuai; Yuan, Jinhui; Kang, Zhe; Zhang, Xianting; Kang, Xue; Guo, Zheng; Li, Feng; Yan, Binbin; Wang, Kuiru; Sang, Xinzhu; Yu, Chongxiu
• Is Part Of: Journal of optics. Volume 17:Number 8(2015:Aug.)
• Publication Date: 2015-07-31
• Subjects: all-optical analog-to-digital conversion -- spectral quantization -- supercontinuum -- chalcogenide horizontal slot waveguide; Optics -- Periodicals; 535.05
• DOI: 10.1088/2040-8978/17/8/085502
• Languages: English
• ISSNs: 2040-8978

Abstract

Abstract: In this paper, we propose an integratable spectral quantization scheme for all-optical analog-to-digital conversion (AOADC) by slicing the supercontinuum, which is generated in a chalcogenide (As2 S3 ) horizontal slot waveguide. The numerical simulation results show that a 4-bit quantization resolution is successfully achieved along with a signal-to-noise ratio of 23.96 dB and an effective number of bit (ENOB) of 3.98 bit. The required As2 S3 waveguide length and input peak power are only 1.5 cm and 900 mW, respectively, owing to the high nonlinear coefficient of 115.8 W −1 /m. It is believed that this proposed scheme can find important applications in the photonic integratable AOADC with low power consumption.