Yb-doped large mode area fibers with depressed clad and dopant confinement
| Autor: | Yves Taillon, Pierre Laperle, Louis Desbiens, Vincent Roy, Claude Paré |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Ytterbium
All-silica fiber Materials science Dopant business.industry Amplifier Physics::Optics chemistry.chemical_element 02 engineering and technology Cladding (fiber optics) 01 natural sciences 010309 optics Mode field diameter 020210 optoelectronics & photonics Optics chemistry 0103 physical sciences 0202 electrical engineering electronic engineering information engineering M squared Laser beam quality business |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2212770 |
| Popis: | Large mode area fibers with depressed-index cladding layer and confinement of rare-earth dopants can provide effective suppression of high-order modes. A polarization-maintaining Yb-doped double-clad fiber with 35/250 μm core/clad diameter has been fabricated from conventional methods according to this design. The fiber which has an effective mode area close to 500 μm2 yields near diffraction-limited output with beam quality factor M2 close to 1.1 when tested as a power amplifier with a coherent seed light source. Beam pointing measurements provide further evidence for near single-mode behavior as the pointing fluctuations are shown to be negligible once the fiber is coiled to a given diameter. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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