Diffractive coherent combining of a 2.5 kW fiber laser array into a 1.9 kW Gaussian beam.
Opt Lett
; 37(14): 2832-4, 2012 Jul 15.
Article
in En
| MEDLINE
| ID: mdl-22825149
ABSTRACT
Five 500 W fiber amplifiers were coherently combined using a diffractive optical element combiner, generating a 1.93 kW beam whose M(2)=1.1 beam quality exceeded that of the inputs. Combining efficiency near 90% at low powers degraded to 79% at full power owing to thermal expansion of the fiber tip array.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Opt Lett
Year:
2012
Type:
Article
Affiliation country:
United States