A membrane external-cavity surface-emitting laser (MECSEL) with emission around 825 nm
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A membrane external-cavity surface-emitting laser (MECSEL) with emission around 825 nm. / Phung, Hoy My; Kahle, Hermann; Penttinen, Jussi-Pekka; Rajala, Patrik; Ranta, Sanna; Guina, Mircea.
Vertical External Cavity Surface Emitting Lasers (VECSELs) X. ed. / Jennifer E. Hastie. SPIE, 2020. 112630H (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11263).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
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TY - GEN
T1 - A membrane external-cavity surface-emitting laser (MECSEL) with emission around 825 nm
AU - Phung, Hoy My
AU - Kahle, Hermann
AU - Penttinen, Jussi-Pekka
AU - Rajala, Patrik
AU - Ranta, Sanna
AU - Guina, Mircea
N1 - INT=phys,"Rajala, Patrik" jufoid=71479
PY - 2020
Y1 - 2020
N2 - A MECSEL emitting around 825nm is reported. With a tuning range from 807nm to 840 nm, the MECSEL extends the coverage of high beam quality semiconductor based lasers in the short 8XXnm region and opens new perspectives for scanning ground-based water-vapor differential absorption lidar. 1.4W maximum output power has been achieved at room temperature operation and at 12.5W absorbed power using a 532 nm emitting pump laser. The beam quality has been investigated by M2 measurements at different pump power. The effect from a growing pump mode and thermal lensing has been observed as the beam divergence angle decreases and the beam waist radius enlargens with increasing pump power.
AB - A MECSEL emitting around 825nm is reported. With a tuning range from 807nm to 840 nm, the MECSEL extends the coverage of high beam quality semiconductor based lasers in the short 8XXnm region and opens new perspectives for scanning ground-based water-vapor differential absorption lidar. 1.4W maximum output power has been achieved at room temperature operation and at 12.5W absorbed power using a 532 nm emitting pump laser. The beam quality has been investigated by M2 measurements at different pump power. The effect from a growing pump mode and thermal lensing has been observed as the beam divergence angle decreases and the beam waist radius enlargens with increasing pump power.
KW - GaInAsP
KW - MECSEL
KW - Semiconductor laser
KW - Short 8XXnm region
KW - SiC heatspreaders
KW - Thermal lensing
KW - VECSEL
U2 - 10.1117/12.2545980
DO - 10.1117/12.2545980
M3 - Conference contribution
SN - 9781510632899
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Vertical External Cavity Surface Emitting Lasers (VECSELs) X
A2 - Hastie, Jennifer E.
PB - SPIE
ER -