TY - JOUR
T1 - Improvement of the beam quality of a diode laser with two active broad-area segments
AU - Chi, Mingjun
AU - Thestrup, B.
AU - Mortensen, J.L.
AU - Nielsen, M.E.
AU - Petersen, P.M.
PY - 2003
Y1 - 2003
N2 - The beam quality of a diode laser with two active segments was improved using an external cavity with collimating optics, a grating, and an output coupler. The beam quality of the output beam, which is the first-order diffractive beam from the grating, was improved by a factor of 2, and at least half of the freely running power of the laser was coupled out from the external cavity. The output power can be enhanced further by the feedback from the zeroth-order beam. The possibility of improving the beam quality further is discussed and a new double-external-cavity configuration is suggested.
AB - The beam quality of a diode laser with two active segments was improved using an external cavity with collimating optics, a grating, and an output coupler. The beam quality of the output beam, which is the first-order diffractive beam from the grating, was improved by a factor of 2, and at least half of the freely running power of the laser was coupled out from the external cavity. The output power can be enhanced further by the feedback from the zeroth-order beam. The possibility of improving the beam quality further is discussed and a new double-external-cavity configuration is suggested.
KW - 6-I optik
U2 - 10.1088/1464-4258/5/5/388
DO - 10.1088/1464-4258/5/5/388
M3 - Journal article
SN - 2040-8978
VL - 5
SP - S338-S341
JO - Journal of Optics A: Pure and Applied Optics (Print)
JF - Journal of Optics A: Pure and Applied Optics (Print)
IS - 5
ER -