An ENOB-enhanced Optical Analog-to-digital Converter with Cascaded Step-size MMI and Modulo Operation

2021 ◽  
Author(s):  
Yan He ◽  
Chang Liu ◽  
Jifang Qiu ◽  
Yue Liu ◽  
Yan Li ◽  
...  
Keyword(s):  
Analog To Digital Converter ◽  
Digital Converter ◽  
Step Size ◽  
Analog To Digital ◽  
Modulo Operation ◽  
Optical Analog

scholarly journals An Optical Analog-to-Digital Converter with Enhanced ENOB Based on MMI-Based Phase-Shift Quantization

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 52
Author(s):  
Yue Liu ◽  
Jifang Qiu ◽  
Chang Liu ◽  
Yan He ◽  
Ran Tao ◽  
...  
Keyword(s):  
Phase Shift ◽  
Multimode Interference ◽  
Analog To Digital Converter ◽  
Effective Number ◽  
Digital Converter ◽  
Analog To Digital ◽  
Mmi Coupler ◽  
Simulation Results ◽  
Optical Analog ◽  
Optical Quantization

An optical analog-to-digital converter (OADC) scheme with enhanced bit resolution by using a multimode interference (MMI) coupler as optical quantization is proposed. The mathematical simulation model was established to verify the feasibility and to investigate the robustness of the scheme. Simulation results show that 20 quantization levels (corresponding to 4.32 of effective number of bits (ENOB)) are realized by using only 6 channels, which indicates that the scheme requires much fewer quantization channels or modulators to realize the same amount of ENOB. The scheme is robust and potential for integration.

scholarly journals Resolution-enhanced all-optical analog-to-digital converter employing cascade optical quantization operation

2014 ◽  
Vol 22 (18) ◽  
pp. 21441 ◽  
Author(s):  
Zhe Kang ◽  
Xianting Zhang ◽  
Jinhui Yuan ◽  
Xinzhu Sang ◽  
Qiang Wu ◽  
...  
Keyword(s):  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
All Optical ◽  
Optical Analog ◽  
Optical Quantization
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