Nonlinear enhancement of the efficiency of the second harmonic generation

Author

Bidin, Noriah ; Khamsan, Nur Ezaan ; Mauludi, Enass ; Noor, Faizani Mohd

Author_Institution

Laser Res. Group, Univ. Teknol. Malaysia, Skudai, Malaysia

fYear

2010

fDate

1-3 Dec. 2010

Firstpage

1

Lastpage

1

Abstract

Birefringent ND:YVO4 pumped by diode laser with fundamental wavelength of 1064 nm was used to pump nonlinear KTP crystal. Quartz crystals having natural birefringent property namely quarter and half waveplates were conducted in conjunction with the bulk of KTP to enhance the nonlinear beam. The result showed that half waveplate have electrical to optical conversion efficiency of 15.6 mW/A as compared to quarter waveplate is only 8.74 mW/A. The threshold current for SHG is found 5.3 A with half waveplate and 5.9 A with quarter waveplate. The high performance shown by half waveplate is realized due to the good mode matching after converting the polarization state.

Keywords

birefringence; light polarisation; mode matching; optical harmonic generation; potassium compounds; quartz; titanium compounds; KTP; current 5.3 A; current 5.9 A; diode laser; half waveplates; mode matching; natural birefringent property; nonlinear enhancement; optical conversion efficiency; polarization state; quarter waveplates; quartz crystals; second harmonic generation; threshold current;

fLanguage

English

Publisher

ieee

Conference_Titel

Enabling Science and Nanotechnology (ESciNano), 2010 International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-8853-7

Type

conf

DOI

10.1109/ESCINANO.2010.5701063

Filename

5701063