Conference paper
85 μm core rod fiber amplifier delivering 350 W/m
Department of Photonics Engineering, Technical University of Denmark1
Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark2
Fiber Sensors & Supercontinuum, Department of Photonics Engineering, Technical University of Denmark3
NKT Group4
Department of Micro- and Nanotechnology, Technical University of Denmark5
An improved version of the distributed modal filtering (DMF) rod fiber is tested in a high power setup delivering 350 W/m of extracted signal average power limited by the available pump power. The rod fiber is thoroughly tested to record the transverse modal instability (TMI) behavior and also measure degradation of the TMI threshold with operation time due to induced absorption in the active material increasing the thermo-optical heat load.
Multiple testing degrades the rod fiber and TMI threshold from >360 W to a satuarated power level of roughly 240 W.
Language: | English |
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Publisher: | SPIE - International Society for Optical Engineering |
Year: | 2016 |
Pages: | 97280I-97280I-6 |
Proceedings: | Fiber Lasers XIII: Technology, Systems, and Applications |
Series: | Proceedings of Spie - the International Society for Optical Engineering |
ISBN: | 1628419636 and 9781628419634 |
ISSN: | 1996756x and 0277786x |
Types: | Conference paper |
DOI: | 10.1117/12.2213274 |
ORCIDs: | Johansen, Mette Marie and Lægsgaard, Jesper |
Active material Applied Mathematics Computer Science Applications Condensed Matter Physics Design of specific laser systems Electrical and Electronic Engineering Electronic, Optical and Magnetic Materials Fiber Fiber amplifiers Fiber lasers Fiber optics amplifiers and oscillators Fibers Fibre lasers and amplifiers Fibre optics Induced absorption Laser applications Lasers Modal filtering Modal instabilities Multiple testing Optical coatings and filters Optical fibre testing and measurement of fibre parameters Other fibre optical devices and techniques Signal average Spectral and other filters Thermal effects Thermo-optical absorption active material distributed modal filtering rod fiber laser stability optical fibre amplifiers optical fibre filters optical fibre testing optical pumping pump power rod fiber amplifier satuarated power thermo-optical size 85 mum thermo-optical effects thermo-optical heat load transverse modal instability threshold