Broadly tunable single-frequency cw mid-infrared source with milliwatt-level output based on difference-frequency generation in orientation-patterned GaAs.
A narrow-linewidth mid-IR source based on difference-frequency generation of an amplified 1.5 microm diode laser and a cw Tm-doped fiber laser in orientation-patterned (OP) GaAs has been developed and evaluated for spectroscopic applications. The source can be tuned to any frequency in the 7.6-8.2 microm range with an output power of 0.5 mW. The measured characteristics of the OP-GaAs sample demonstrate a high quality of the material.
Vasilyev
Sergey
S
Institut für Experimentalphysik, Universitätsstrasse 1, 40225 Düsseldorf, Germany. Sergey.Vasilyev@uni-duesseldorf.de
Schiller
Stephan
S
Nevsky
Alexander
A
Grisard
Arnaud
A
Faye
David
D
Lallier
Eric
E
Zhang
Z
Z
Boyland
A J
AJ
Sahu
J K
JK
Ibsen
M
M
Clarkson
W A
WA