https://doi.org/10.1051/epjap:1999186
Degeneration effects in laser cavities
Optisches Institut der TU Berlin,
Straße des 17. Juni 135, 10623 Berlin, Germany
Corresponding authors: qczhang@physik.tu-berlin.de ozygus@physik.tu-berlin.de weber@physik.tu-berlin.de
Received:
10
December
1998
Revised:
15
February
1999
Accepted:
19
March
1999
Published online: 15 June 1999
The pumping power dependent locations of the degeneration points were calculated for a plane-concave cavity. Such a simple experimental method for determining the degeneration points and their shifts due to thermal lensing is proposed. The laser beam patterns near the degeneration points were observed. For the pumping configuration under investigation the beam parameter product at the degeneration points increases considerably.
PACS: 42.60.Da – Resonators, cavities, amplifiers, arrays, and rings / 42.60.Jf – Beam characteristics: profile, intensity, and power; spatial pattern formation / 42.55.Xi – Diode-pumped lasers
© EDP Sciences, 1999
