Type

Journal Article

Authors

P K A Wai
Hwa Yaw Tam
Chao Lu
Gerald Farrell
Chongxiu Yu
Guiyao Zhou
Kangping Zhong
Xian Zhou
Feng Li
Binbin Yan
and 6 others

Subjects

Computer Science

Topics
mach zehnder interferometer on chip integratable all optical quantizer strong cross phase modulation signal to noise ratio real time systems silicon organic hybrid slot waveguide engineering electrical and computer engineering

On-Chip Integratable All-optical Quantizer Using Strong Cross-Phase Modulation In A Silicon-Organic Hybrid Slot Waveguide (2016)

Abstract High performance all-optical quantizer based on silicon waveguide is believed to have significant applications in photonic integratable optical communication links, optical interconnection networks and real-time signal processing systems. In this paper, we propose an integratable all-optical quantizer for on-chip and low power consumption all-optical analog-to-digital converters. The quantization is realized by the strong cross-phase modulation and interference in a silicon-organic hybrid (SOH) slot waveguide based Mach-Zehnder interferometer. By carefully designing the dimension of the SOH waveguide, large nonlinear coefficients up to 16,000 and 18,069 W−1/m for the pump and probe signals can be obtained respectively, along with a low pulse walk-off parameter of 66.7 fs/mm and all-normal dispersion in the wavelength regime considered. Simulation results show that the phase shift of the probe signal can reach 8π at a low pump pulse peak power of 206 mW and propagation length of 5 mm such that a 4-bit all-optical quantizer can be realized. The corresponding signal-to-noise ratio is 23.42 dB and effective number of bit is 3.89-bit.
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Full list of authors on original publication

P K A Wai, Hwa Yaw Tam, Chao Lu, Gerald Farrell, Chongxiu Yu, Guiyao Zhou, Kangping Zhong, Xian Zhou, Feng Li, Binbin Yan and 6 others

Experts in our system

1
Gerald Farrell
TU Dublin
Total Publications: 212
 
2
Chongxiu Yu
TU Dublin
Total Publications: 26
 
3
Xian Zhou
TU Dublin
Total Publications: 5
 
4
Feng Li
TU Dublin
Total Publications: 8
 
5
Binbin Yan
TU Dublin
Total Publications: 9