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Cascaded-cladding-pumped cascaded Raman fiber amplifier
Optics Express
|June 16, 2015
Summary
A new cascaded Raman fiber laser design overcomes efficiency limits by using multiple-clad fiber. This approach enhances both conversion efficiency and brightness in cladding-pumped fiber lasers.
Area of Science:
- Fiber optics
- Laser physics
- Nonlinear optics
Background:
- Double-clad fiber lasers face conversion efficiency limitations due to the cladding-to-core area ratio.
- High conversion efficiency in these lasers requires a ratio below approximately 8, hindering brightness enhancement.
Purpose of the Study:
- To propose a novel cascaded-cladding-pumped Raman fiber laser design using multiple-clad fiber.
- To theoretically model and numerically simulate this new scheme for improved performance.
Main Methods:
- Development of a theoretical model for a Raman fiber amplifier utilizing multiple-clad fiber.
- Numerical simulations to validate the proposed laser scheme's effectiveness.
Main Results:
- The proposed cascaded Raman fiber laser scheme demonstrates improved conversion efficiency.
- The design successfully enhances the brightness of cladding-pumped Raman fiber lasers.
Conclusions:
- The novel cascaded Raman fiber laser design effectively overcomes the limitations of traditional double-clad systems.
- Utilizing multiple-clad fiber offers a viable solution for achieving high conversion efficiency and brightness in fiber lasers.
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