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Raman lasing in a chalcogenide microwire-based Fabry-Perot cavity
1Department of Electrical and Computer Engineering, McGill University, Montreal, Quebec, Canada. raja.ahmad@mail.mcgill.ca
Optics Letters
|November 2, 2012
Summary
We developed the first all-chalcogenide microwire Raman laser. This novel device utilizes the Raman effect in chalcogenide microwires, offering potential for broad wavelength operation.
Area of Science:
- Optics and Photonics
- Materials Science
- Laser Technology
Background:
- Raman lasers offer tunable wavelength generation.
- Chalcogenide glasses exhibit unique optical properties for infrared applications.
- Microwire fabrication enables compact photonic devices.
Purpose of the Study:
- To demonstrate the first all-chalcogenide microwire Raman laser.
- To investigate different Fabry-Perot cavity designs for enhanced lasing.
- To explore the potential of chalcogenide microwire lasers for broadband operation.
Main Methods:
- Fabrication of chalcogenide microwires.
- Utilizing the Raman effect as the gain medium.
- Implementing two types of Fabry-Perot cavities: one with a silver mirror and one using Fresnel reflections.
- Pumping the microwires in the C-band (1530-1565 nm).
Main Results:
- Successful demonstration of an all-chalcogenide microwire Raman laser.
- Lasing achieved in the L-band (1565-1625 nm) from C-band pumping.
- Comparison of performance between the two cavity designs.
Conclusions:
- All-chalcogenide microwire Raman lasers are feasible.
- The demonstrated laser operates in the L-band, extending from the C-band pump.
- This technology holds potential for broadband operation across the 1.5-10 μm transmission window of chalcogenide glasses.
