Abstract
We describe the design and operation of a critically phase-matched femtosecond optical parametric oscillator based on KTA, By employing a small pump-signal noncollinear angle, tuning of the idler to beyond 4 mu m is achieved using a Ti:sapphire pump laser, A Gaussian-beam model is described which can be used to identify the optimal noncollinear phase-matching geometry, Idler and signal pulses are characterized fully both temporally and spectrally and interferometric autocorrelation data at 3.5 mu m showing idler pulses of only eight optical cycles duration are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | QE-33 |
| Publication status | Published - Jan 1997 |
Keywords
- infrared spectroscopy
- optical parametric oscillators
- optical pulse generation
- optical pulse measurement
- tunable oscillators
- ultrafast optics
- ultrashort pulse generation
- PULSES
- GENERATION
- RBTIOASO4
- KTIOASO4