Back to Search
Start Over
Self-phase-locked degenerate femtosecond optical parametric oscillator based on BiB3O6.
- Source :
- Laser & Photonics Reviews; Sep2013, Vol. 7 Issue 5, pL55-L60, 6p
- Publication Year :
- 2013
-
Abstract
- A self-phase-locked degenerate femtosecond optical parametric oscillator (OPO) based on the birefringent nonlinear material, bismuth triborate, BiB<subscript>3</subscript>O<subscript>6</subscript>, synchronously-pumped by a Kerr-lens-mode-locked Ti:sapphire laser at 800 nm is described. By exploiting versatile phase-matching properties of BiB<subscript>3</subscript>O<subscript>6</subscript>, including large spectral and angular acceptance for parametric generation and low group velocity dispersion in the optical xz plane, stable self-phase-locked degenerate OPO operation centered at 1600 nm is demonstrated using collinear type I ( e → oo) interaction in a 1.5-mm crystal at room temperature. The degenerate OPO output spectrum extends over 46 nm (∼5.4 THz) with 190 fs pulse duration for input pump pulses of 155 fs with a bandwidth of 7 nm. Phase coherence between the pump and degenerate output is verified using f-2f interferometry, and discrete frequency beats caused by different carrier-envelope-offset frequencies are measured using radio frequency measurements. Photo shows a 1.5-mm BiB<subscript>3</subscript>O<subscript>6</subscript> crystal used as a nonlinear gain medium in a degenerate self-phase-locked femtosecond OPO operating at room temperature. The green beam is the result of non-phase-matched sum-frequency mixing between the pump light and the sub-harmonic OPO field at degeneracy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18638880
- Volume :
- 7
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Laser & Photonics Reviews
- Publication Type :
- Academic Journal
- Accession number :
- 90180705
- Full Text :
- https://doi.org/10.1002/lpor.201300058