Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/Hannan/136074
Title: Generation of Second-Harmonics Near Ultraviolet Wavelengths From Femtosecond Pump Pulses
Authors: Jinhui Yuan;Xinzhu Sang;Qiang Wu;Guiyao Zhou;Feng Li;Chongxiu Yu;Kuiru Wang;Binbin Yan;Ying Han;Hwa Yaw Tam;P. K. A. Wai
subject: Photonic crystal fiber|second-harmonic generation|surface nonlinearity polarization
Year: 2016
Publisher: IEEE
Abstract: Second-harmonic generation (SHG) near ultraviolet wavelengths is experimentally demonstrated by coupling femtosecond pump pulses into the normal dispersion region far away from the zero-dispersion wavelength of the fundamental mode in a silica photonic crystal fiber (PCF) fabricated in our laboratory. When the pump pulses with average input power P<sub>av</sub> of 500 mW and center wavelength &#x03BB;<sub>p</sub> of 820 nm are used, the maximum conversion efficiency &#x03B7;<sub>SH</sub> of the second harmonics centered at 410 nm can be up to 1.6 &#x00D7; 10-6 , corresponding to the output power P<sub>SH</sub> of 520 nW. By measuring P<sub>SH</sub> at different PCF lengths and studying the temporal dependence of SH, it is confirmed that the physical mechanism of SHG is dominated by surface nonlinearity polarization, which is resulted from the local inhomogeneities in the silica core region and at the coreair-silica cladding interface of PCF. Finally, a theoretical model is established to analyze the nonlinear optical process.
URI: http://localhost/handle/Hannan/136074
ISSN: 1041-1135
1941-0174
volume: 28
issue: 16
More Information: 1719
1722
Appears in Collections:2016

Files in This Item:
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Title: Generation of Second-Harmonics Near Ultraviolet Wavelengths From Femtosecond Pump Pulses
Authors: Jinhui Yuan;Xinzhu Sang;Qiang Wu;Guiyao Zhou;Feng Li;Chongxiu Yu;Kuiru Wang;Binbin Yan;Ying Han;Hwa Yaw Tam;P. K. A. Wai
subject: Photonic crystal fiber|second-harmonic generation|surface nonlinearity polarization
Year: 2016
Publisher: IEEE
Abstract: Second-harmonic generation (SHG) near ultraviolet wavelengths is experimentally demonstrated by coupling femtosecond pump pulses into the normal dispersion region far away from the zero-dispersion wavelength of the fundamental mode in a silica photonic crystal fiber (PCF) fabricated in our laboratory. When the pump pulses with average input power P<sub>av</sub> of 500 mW and center wavelength &#x03BB;<sub>p</sub> of 820 nm are used, the maximum conversion efficiency &#x03B7;<sub>SH</sub> of the second harmonics centered at 410 nm can be up to 1.6 &#x00D7; 10-6 , corresponding to the output power P<sub>SH</sub> of 520 nW. By measuring P<sub>SH</sub> at different PCF lengths and studying the temporal dependence of SH, it is confirmed that the physical mechanism of SHG is dominated by surface nonlinearity polarization, which is resulted from the local inhomogeneities in the silica core region and at the coreair-silica cladding interface of PCF. Finally, a theoretical model is established to analyze the nonlinear optical process.
URI: http://localhost/handle/Hannan/136074
ISSN: 1041-1135
1941-0174
volume: 28
issue: 16
More Information: 1719
1722
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7419866.pdf728.94 kBAdobe PDFThumbnail
Preview File
Title: Generation of Second-Harmonics Near Ultraviolet Wavelengths From Femtosecond Pump Pulses
Authors: Jinhui Yuan;Xinzhu Sang;Qiang Wu;Guiyao Zhou;Feng Li;Chongxiu Yu;Kuiru Wang;Binbin Yan;Ying Han;Hwa Yaw Tam;P. K. A. Wai
subject: Photonic crystal fiber|second-harmonic generation|surface nonlinearity polarization
Year: 2016
Publisher: IEEE
Abstract: Second-harmonic generation (SHG) near ultraviolet wavelengths is experimentally demonstrated by coupling femtosecond pump pulses into the normal dispersion region far away from the zero-dispersion wavelength of the fundamental mode in a silica photonic crystal fiber (PCF) fabricated in our laboratory. When the pump pulses with average input power P<sub>av</sub> of 500 mW and center wavelength &#x03BB;<sub>p</sub> of 820 nm are used, the maximum conversion efficiency &#x03B7;<sub>SH</sub> of the second harmonics centered at 410 nm can be up to 1.6 &#x00D7; 10-6 , corresponding to the output power P<sub>SH</sub> of 520 nW. By measuring P<sub>SH</sub> at different PCF lengths and studying the temporal dependence of SH, it is confirmed that the physical mechanism of SHG is dominated by surface nonlinearity polarization, which is resulted from the local inhomogeneities in the silica core region and at the coreair-silica cladding interface of PCF. Finally, a theoretical model is established to analyze the nonlinear optical process.
URI: http://localhost/handle/Hannan/136074
ISSN: 1041-1135
1941-0174
volume: 28
issue: 16
More Information: 1719
1722
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7419866.pdf728.94 kBAdobe PDFThumbnail
Preview File