Title :
Efficient second harmonic generation in birefringently phase-matched GaAs/Al/sub 2/O/sub 3/ waveguides using femtosecond pulses at 2.01 /spl mu/m
Author :
Venugopal Rao, S. ; Moutzouris, K. ; Ebrahimzadeh, M. ; De Rossi, A. ; Berger, V. ; Calligaro, M. ; Ortiz, V.
Author_Institution :
Sch. of Phys. & Astron., Saint Andrews Univ., UK
Abstract :
Summary form only given. We have demonstrated efficient SHG in type-I birefringence phase matched GaAs/Al/sub 2/O/sub 3/ waveguides pumped at 2.01 /spl mu/m. An average SHG power of /spl sim/650 /spl mu/W was generated with an input power of /spl sim/50 mW, corresponding to an overall external efficiency of 1.3%, and pump depletion of greater than 80% were observed. We believe these results represent an important step towards the practical realization of nonlinear frequency conversion devices based on GaAs technology.
Keywords :
III-V semiconductors; alumina; birefringence; gallium arsenide; high-speed optical techniques; optical harmonic generation; optical phase matching; optical waveguides; 2.01 micron; 50 mW; 650 muW; GaAs-Al/sub 2/O/sub 3/; average SHG power; efficient second harmonic generation; femtosecond pulses; input power; nonlinear frequency conversion devices; pump depletion; type-I birefringence phase matched GaAs/Al/sub 2/O/sub 3/ waveguides; Birefringence; Frequency conversion; Gallium arsenide; Glass; Laser beams; Optimized production technology; Oscillators; Signal generators; Silicon compounds; Temperature;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1033916
