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Cascaded random distributed-feedback Raman fiber laser assisted by Fresnel reflection
Optics Express
|October 20, 2015
Summary
We introduce a novel cascaded random distributed-feedback Raman fiber laser (RD-RFL) for efficient second-order Stokes wavelength output. This design offers a simple, flexible, and effective approach to lasing generation with enhanced power and conversion efficiency.
Area of Science:
- Photonics and Laser Technology
- Fiber Optics
- Nonlinear Optics
Background:
- Random distributed-feedback Raman fiber lasers (RD-RFLs) are crucial for various applications.
- Optimizing output power and conversion efficiency in RD-RFLs remains a key challenge.
- Linear output at higher-order Stokes wavelengths requires advanced laser designs.
Purpose of the Study:
- To propose and demonstrate a new cascaded RD-RFL configuration.
- To provide guidelines for achieving specific output power and conversion efficiency.
- To confirm the effectiveness of the proposed scheme through experimental validation.
Main Methods:
- Numerical study to establish design guidelines for the cascaded RD-RFL.
- Experimental implementation of the proposed RD-RFL principle.
- Analysis of lasing generation, output power, and conversion efficiency.
Main Results:
- Successful demonstration of a cascaded RD-RFL with linear output at the second-order Stokes wavelength.
- Established guidelines for optimizing output power and conversion efficiency.
- Experimental validation confirming the effectiveness of the proposed laser scheme.
Conclusions:
- The proposed cascaded RD-RFL is an effective method for generating lasing at the second-order Stokes wavelength.
- The design offers simplicity and flexibility, enhanced by a Fresnel reflection feature.
- This work provides a practical framework for developing high-performance Raman fiber lasers.
