Noncritical matching of cavity lengths for uninterrupted additive-pulse mode locking of a cw Nd:YLF laser
Abstract
Stable interferometrically insensitive operation of an additive-pulse mode-locked Nd:YLF laser is observed over 4.8 microns of continuous detuning of the cavity lengths. The phenomenon continuously persists over 250 microns of coarse cavity-length detuning. Outside this range interferometric mode-locking typically associated with additive-pulse mode-locking is observed for detuning lengths of over 1 mm. The external cavity of the system consists of a multimode fiber whose four possible second-order proper modes are all excited. The underlying mechanism is a slow process with response times in the subhertz and hertz regions.
- Publication:
-
Optics Letters
- Pub Date:
- November 1991
- DOI:
- 10.1364/OL.16.001671
- Bibcode:
- 1991OptL...16.1671C
- Keywords:
-
- Continuous Wave Lasers;
- Laser Cavities;
- Laser Mode Locking;
- Neodymium Lasers;
- Pulsed Lasers;
- Doped Crystals;
- Laser Interferometry;
- Solid State Lasers;
- Lasers and Masers