Type

Journal Article

Authors

Gerald Farrell
Chongxiu Yu
Kuiru Wang
Xian Zhou
Qiang wu
Xinzhu Sang
Binbin Yan
Feng Li
Jinhui Yuan
Chao Mei

Subjects

Physics

Topics
peak power kerr nonlinearity all optical quantization raman solitons chaicogenide strip waveguide electrical and computer engineering spectral compression optical signal processing

Efficient Spectral Compression of Wavelength-Shifting Soliton and Its Application in Integratable All-Optical Quantization (2019)

Abstract n this paper, we numerically demonstrate efficient spectral compression (SPC) of wavelength-shifting soliton in a chalcogenide strip waveguide. It is found that the profiles of group-velocity dispersion (GVD) and Kerr nonlinearity play key roles in determining SPC. After calculating the dispersion of Kerr nonlinearity and Raman spectrum for three kinds of chalcogenide materials, Ge11.5As24Se64.5 is chosen as the material for designing the chalcogenide strip waveguide (CSW). The geometric parameters of CSW are optimized to obtain the desired GVD and Kerr nonlinearity. Simulation results show that in the designed CSW, an input spectrum width of 52.04 nm can be compressed to 7.23 nm along with wavelength shift of 17 nm when the input peak power is 25 W. With the input peak power increasing to 75W, the SPC is slightly weakened, but wavelength shift can be up to 190 nm. The proposed CSW is applied to integrated all-optical quantization and an effective quantization number of 3.66-bit is achieved. It is expected that our research results can find important applications in on-chip integrated spectroscopy, all-optical signal processing, etc.
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Full list of authors on original publication

Gerald Farrell, Chongxiu Yu, Kuiru Wang, Xian Zhou, Qiang wu, Xinzhu Sang, Binbin Yan, Feng Li, Jinhui Yuan, Chao Mei

Experts in our system

1
Gerald Farrell
TU Dublin
Total Publications: 212
 
2
Chongxiu Yu
TU Dublin
Total Publications: 26
 
3
Kuiru Wang
TU Dublin
Total Publications: 7
 
4
Xian Zhou
TU Dublin
Total Publications: 5
 
5
Qiang wu
TU Dublin
Total Publications: 90
 
6
Xinzhu Sang
TU Dublin
Total Publications: 14
 
7
Binbin Yan
TU Dublin
Total Publications: 9
 
8
Feng Li
TU Dublin
Total Publications: 8
 
9
Jinhui Yuan
TU Dublin
Total Publications: 24