Actively Q-Switched Multisegmented Nd:YAG Laser Pumped at 885 nm for Remote Sensing

Autor: Georgios Tsaknakis, Georgios Avdikos, Paraskevas Bakopoulos, Alexandros Papayannis, Dimitris N. Papadopoulos, Georgios Tzeremes, Christos Evangelatos
Rok vydání: 2014
Předmět:
Zdroj: IEEE Photonics Technology Letters. 26:1890-1893
ISSN: 1941-0174
1041-1135
DOI: 10.1109/lpt.2014.2341656
Popis: An end-pumped actively Q-switched Nd:YAG laser using a multisegmented crystal rod as laser active material, directly pumped to the upper laser level by an 885-nm emitting diode is demonstrated. The Nd:YAG crystal was pumped both in CW and quasi-CW mode. The maximum energy per pulse obtained was 2.57 mJ at 1 kHz, with an overall efficiency of ~ 7.5\) %. The pulse duration was 22-ns full-width at half-maximum while the spatial beam profile was excellent (M 2
Databáze: OpenAIRE