Title :
Efficient single-frequency pulsed all-fibre amplifier for coherent lidar
Author :
Bollig, Christoph ; Hofmeister, Paul-Gerke ; Kunze, Mirko ; Schmidt, J. ; Fayed, Sarah ; Reuter, R.
Author_Institution :
Phys. Dept., Univ. of Oldenburg, Oldenburg, Germany
Abstract :
In this paper, we used a simple, two-stage erbium amplifier, where both stages are pumped by low-power single-transverse-mode laser diodes. We used standard polarisation-maintaining active fibre with 0.15 NA and 7 μm core diameter (-8.5 μm mode field diameter). The comparably small mode field diameter is compensated by a high erbium concentration (55 dB/m absorption at 1530 nm). In this way, it was possible to use an 80 cm short amplifier stage.
Keywords :
erbium; optical fibre amplifiers; optical pumping; optical radar; coherent lidar; efficient single-frequency pulsed all-fibre amplifier; high erbium concentration; low-power single-transverse-mode laser diodes; short amplifier stage; size 7 mum; size 80 cm; standard polarisation-maintaining active fibre; two-stage erbium amplifier; wavelength 1530 nm; Erbium; Erbium-doped fiber lasers; Laser excitation; Laser radar; Pump lasers; Scattering; Semiconductor lasers;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6801383
