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All-fiber Fabry-Perot resonators based on microfiber Sagnac loop mirrors
Shan-Shan Wang1, Zhi-Fang Hu, Yu-Hang Li
1State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou, China.
Optics Letters
|February 3, 2009
Summary
We developed small, tunable fiber Fabry-Perot (F-P) resonators using tellurite microfibers. These resonators offer good resonance and easy integration, paving the way for advanced fiber optic systems.
Area of Science:
- Optics and Photonics
- Materials Science
- Fiber Optics
Background:
- Fabry-Perot resonators are crucial optical components.
- Miniaturization and tunability are key challenges in resonator fabrication.
- Tellurite microfibers offer unique optical properties.
Purpose of the Study:
- To demonstrate all-fiber Fabry-Perot resonators using tellurite microfibers.
- To investigate the resonant properties and tunability of these micro-resonators.
- To highlight the advantages of microfiber-based resonators for integration into fiber systems.
Main Methods:
- Fabrication of Fabry-Perot resonators by assembling Sagnac loop mirrors with tellurite microfibers.
- Characterization of resonant responses, including quality factor, free spectral range, and extinction ratio.
- Micromanipulation under an optical microscope for tuning resonator properties.
Main Results:
- Successfully fabricated all-fiber Fabry-Perot resonators with dimensions in the hundreds of micrometers.
- Achieved clear resonant responses with a quality factor of ~5700, a free spectral range of ~1 nm, and a maximum extinction ratio of 18 dB.
- Demonstrated tunability of reflectivity and effective cavity length via micromanipulation.
Conclusions:
- Tellurite microfiber-based Fabry-Perot resonators offer a promising solution for compact and tunable optical devices.
- The demonstrated resonators exhibit excellent performance characteristics and ease of fabrication.
- These resonators are well-suited for integration into various fiber-optic systems due to their small size and tunability.
