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Plasmonic random laser on the fiber facet
Optics Express
|September 15, 2015
Summary
Researchers developed a low-cost random laser on an optical fiber facet using polydimethylsiloxane (PDMS) and silver nanowires. This plasmonic random laser enhances pump efficiency and concentrates output energy along the fiber axis.
Area of Science:
- Photonics
- Materials Science
- Nanotechnology
Background:
- Random lasers offer unique emission properties.
- Integrating lasers onto optical fibers is challenging.
- Plasmonic enhancement can improve laser performance.
Purpose of the Study:
- To fabricate a cost-effective random laser on an optical fiber facet.
- To utilize silver nanowires for plasmonic feedback.
- To enhance the pump efficiency and output characteristics of the random laser.
Main Methods:
- Dipping an optical fiber end face into a solution of polydimethylsiloxane (PDMS) doped with rhodamine 6G and silver nanowires.
- Utilizing the PDMS film as the active waveguide layer.
- Employing silver nanowires for three-dimensional plasmonic feedback.
Main Results:
- Successful fabrication of a random laser on the optical fiber facet.
- Significant improvement in pump efficiency due to silver nanowire plasmon resonance.
- Concentration of output laser energy within a narrow angular range along the fiber axis.
Conclusions:
- A simple, efficient, and low-cost method for fabricating optical fiber facet random lasers is presented.
- The integration of PDMS, rhodamine 6G, and silver nanowires provides effective plasmonic feedback for random lasing.
- This technique shows promise for applications requiring compact and efficient fiber-coupled laser sources.
