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In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
Published on: May 27, 2013
High average power, strictly all-fiber supercontinuum source with good beam quality.
Xiaohong Hu1, Wei Zhang, Zhi Yang
1State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China.
Optics Letters
|July 19, 2011
Summary
A high-power fiber laser system generated a broadband supercontinuum using photonic crystal fiber. This all-fiber supercontinuum source demonstrated strictly single-mode operation across its entire spectral range.
Area of Science:
- Optics and Photonics
- Laser Physics
- Materials Science
Background:
- Supercontinuum generation is crucial for various spectroscopic and imaging applications.
- High-power, broadband light sources are essential for advancing optical technologies.
- Photonic crystal fibers offer unique properties for light manipulation.
Purpose of the Study:
- To generate a broadband supercontinuum using a high-power picosecond fiber laser.
- To investigate the performance of a commercially available photonic crystal fiber for supercontinuum generation.
- To verify the single-mode operation of the generated all-fiber supercontinuum source.
Main Methods:
- Utilized a 1.05 μm picosecond pulsed fiber master oscillator power amplifier (MOPA) system.
- Employed a 5 m long commercially available photonic crystal fiber as the nonlinear medium.
- Quantitatively measured beam quality to verify single-mode operation.
Main Results:
- Generated a 49.8 W supercontinuum spanning from approximately 500 nm to over 1700 nm.
- Achieved strictly single-mode operation of the all-fiber supercontinuum source across the entire spectral range.
- Demonstrated the capability of the MOPA system and photonic crystal fiber for high-power supercontinuum generation.
Conclusions:
- The study successfully demonstrated high-power supercontinuum generation using a picosecond fiber laser and photonic crystal fiber.
- The all-fiber supercontinuum source exhibits excellent beam quality, confirming its single-mode operation.
- This work provides a robust platform for applications requiring broadband, high-power, single-mode light sources.
