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Brillouin lasing in integrated liquid-core optical fibers
K Kieu1, D Churin, L Schneebeli
1College of Optical Sciences, The University of Arizona, 1630 E. University Blvd., Tucson, Arizona 85721, USA. kkieu@optics.arizona.edu
Optics Letters
|March 5, 2013
Summary
Researchers achieved Brillouin lasing in a novel liquid-core optical fiber using carbon disulfide (CS$_{2}$). This groundbreaking work demonstrates the first liquid-based Brillouin laser with a narrow linewidth below 1 kHz.
Area of Science:
- Photonics
- Nonlinear Optics
- Materials Science
Background:
- Brillouin lasing is a nonlinear optical phenomenon.
- Integrated optical devices offer miniaturization and enhanced performance.
- Liquid-core optical fibers provide unique optical properties and tunability.
Purpose of the Study:
- To demonstrate Brillouin lasing in an integrated liquid-core optical fiber.
- To investigate the performance of liquid-based Brillouin lasers.
- To achieve a narrow linewidth single-frequency laser source.
Main Methods:
- Fabrication of an integrated liquid-core optical fiber.
- Filling the fiber with neat carbon disulfide (CS$_{2}$).
- Experimental observation and characterization of Brillouin lasing.
Main Results:
- Successful demonstration of Brillouin lasing in a liquid-core optical fiber.
- Observation of single-frequency operation.
- Estimation of the laser linewidth to be less than 1 kHz via heterodyne beat measurements.
Conclusions:
- This study presents the first observation of Brillouin lasing in an optical fiber filled with a liquid.
- The developed liquid-based Brillouin laser exhibits a narrow linewidth, suitable for various applications.
- Integrated liquid-core fibers are promising platforms for novel photonic devices.
