Generation of Joule-level green bursts of nanosecond pulses from a DPSSL amplifier.
Opt Express
; 31(12): 19510-19522, 2023 Jun 05.
Article
in En
| MEDLINE
| ID: mdl-37381364
ABSTRACT
A new approach to generation of a burst of high-energy green pulses by placing a high-energy multi-slab YbYAG DPSSL amplifier and SHG crystal inside a regenerative cavity is presented. In a proof-of-concept test, stable generation of a burst of six green (515â
nm) pulses, each 10â
ns in duration and separated by 29.4â
ns (34â
MHz), with 2.0 J total energy has been demonstrated at 1â
Hz from a non-optimized ring cavity design. A maximum individual green pulse energy of 580 mJ was produced from a 1.78 J circulating infrared (1030â
nm) pulse (average fluence 0.9â
J/cm2), corresponding to a SHG conversion efficiency of 32%. Experimental results have been compared with predicted performance from a simple model. Efficient generation of a burst of high energy green pulses offers an attractive pump source for TiSa amplifiers, providing the potential to reduce the impact of amplified stimulated emission by reducing instantaneous transverse gain.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Type of study:
Prognostic_studies
Language:
En
Journal:
Opt Express
Journal subject:
OFTALMOLOGIA
Year:
2023
Document type:
Article