Abstract
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.
Original language | English |
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Title of host publication | Proceedings of SPIE |
Number of pages | 6 |
Volume | 9728 |
Publisher | SPIE - International Society for Optical Engineering |
Publication date | 2016 |
Article number | 97280I |
DOIs | |
Publication status | Published - 2016 |
Event | Fiber Lasers XIII: Technology, Systems, and Applications - The Moscone Center, San Francisco, United States Duration: 13 Feb 2016 → 18 Feb 2016 Conference number: 9728 |
Conference
Conference | Fiber Lasers XIII: Technology, Systems, and Applications |
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Number | 9728 |
Location | The Moscone Center |
Country/Territory | United States |
City | San Francisco |
Period | 13/02/2016 → 18/02/2016 |
Series | Proceedings of SPIE, the International Society for Optical Engineering |
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Volume | 9728 |
ISSN | 0277-786X |
Keywords
- Fibre lasers and amplifiers
- Design of specific laser systems
- Optical fibre testing and measurement of fibre parameters
- Spectral and other filters
- Other fibre optical devices and techniques
- Optical coatings and filters
- Fibre optics
- laser stability
- optical fibre amplifiers
- optical fibre filters
- optical fibre testing
- optical pumping
- thermo-optical effects
- distributed modal filtering rod fiber
- rod fiber amplifier
- pump power
- transverse modal instability threshold
- absorption
- size 85 mum
- satuarated power thermo-optical
- thermo-optical heat load
- active material
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Fiber
- Fiber optics amplifiers and oscillators
- Lasers
- Thermal effects
- Fiber lasers
- Fibers
- Laser applications
- Active material
- Induced absorption
- Modal filtering
- Modal instabilities
- Multiple testing
- Signal average
- Thermo-optical
- Fiber amplifiers