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Cladding pumped large-mode-area Nd-doped holey fiber laser
Optics Express
|May 14, 2009
Summary
This study demonstrates a novel neodymium-doped fiber laser using a microstructure cladding. The laser achieved 10 mW of single transverse mode output at 1060 nm, despite low-brightness diode pumping.
Area of Science:
- Fiber optics
- Laser physics
- Materials science
Background:
- Neodymium-doped fibers are crucial for laser applications.
- Microstructure cladding (holey fiber) offers unique optical properties.
- Efficient laser operation with low-brightness sources is a persistent challenge.
Purpose of the Study:
- To investigate the performance of a large Nd-doped core fiber laser in a microstructure cladding.
- To assess the feasibility of using low-brightness diode lasers for pumping.
- To characterize the output properties of the developed fiber laser.
Main Methods:
- A 38 cm long Nd-doped fiber with a large core was fabricated within a microstructure cladding.
- The fiber was pumped using a low-brightness diode laser with a large area ratio of pump radiation to the core (>30).
- Butt-coupled mirrors were used to form the laser cavity.
Main Results:
- The fiber laser operated at a wavelength of 1060 nm.
- The emitted radiation was confirmed to be single transverse mode.
- An output power of approximately 10 mW was achieved.
Conclusions:
- Low-brightness diode pumping is viable for Nd-doped microstructure fiber lasers.
- The developed fiber laser design demonstrates efficient single transverse mode operation.
- This work contributes to the development of compact and efficient fiber laser systems.
