Title :
Mid-infrared femtosecond pulses from a critically phase-matched optical parametric oscillator based on KTiOAsO/sub 4/
Author :
McGowan, C. ; Reid, Derryck T. ; Ebrahimzadeh, M. ; Sibbett, W. ; Allen, J.F.
Author_Institution :
Sch. of Phys. & Astron., St. Andrews Univ., UK
Abstract :
Summary form only given. We present results obtained with a system where a Ti:sapphire-pumped femtosecond optical parametric oscillator (OPO) based on critically phase-matched KTiOAsO/sub 4/ (KTA) generates pulses covering the 2.8-4-/spl mu/m region in the idler branch and 1.08-1.2 /spl mu/m in the signal branch. Similar devices based on KTA and KTP have previously produced idler pulses of up to 1.9 /spl mu/m and 3.65 /spl mu/m respectively but we have extended this tuning range by using a different crystal cut, and selecting KTA to avoid absorption problems in KTP.
Keywords :
high-speed optical techniques; optical parametric oscillators; potassium compounds; titanium compounds; 1.08 to 1.2 micron; 2.8 to 4 micron; KTA crystal; KTiOAsO/sub 4/; Ti:sapphire-pumping; critical phase-matching; mid-infrared femtosecond pulses; optical parametric oscillator; tuning range; Absorption; Frequency conversion; Nonlinear optics; Optical frequency conversion; Optical pulse generation; Optical pulses; Oscillators; Signal generators; Tuning; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
