Title :
Low threshold ion-implanted Nd:YAG channel waveguide laser
Author :
Field, S.J. ; Hanna, D.C. ; Large, A.C. ; Shepherd, D.P. ; Tropper, A.C. ; Chandler, P.J. ; Townsend, P.D. ; Zhang, L.
Author_Institution :
Dept. of Phys., Southampton Univ., UK
Abstract :
The first channel waveguide laser in Nd:YAG showing a threshold reduction of 20 times compared to a planar waveguide is described. With diode pumping this ion-implanted waveguide laser has been operated with absorbed power thresholds as low as approximately 500 mu W in good agreement with theoretical expectation. Output slope efficiencies of approximately 29% have also been demonstrated.
Keywords :
integrated optics; ion implantation; neodymium; optical waveguides; solid lasers; yttrium compounds; 29 percent; 500 muW; YAG:Nd; YAl5O12:Nd; absorbed power thresholds; channel waveguide laser; diode pumping; ion-implanted; low threshold type; output slope efficiencies; threshold reduction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911470
