Wavelength-Tunable High-Energy All-Normal-Dispersion Yb-Doped Mode-Locked All-Fiber Laser With a HiBi Fiber Sagnac Loop Filter
| Autor: | Xueping Cheng, Honghai Wang, Jia Haur Wong, Chunmei Ouyang, Ping Shum, Songnian Fu, Xiaolong Tian |
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| Rok vydání: | 2011 |
| Předmět: |
Birefringence
Materials science business.industry Physics::Optics Polarization-maintaining optical fiber Condensed Matter Physics Laser Atomic and Molecular Physics and Optics law.invention Optics Polarization controller law Fiber laser Dispersion (optics) Dispersion-shifted fiber Fiber Electrical and Electronic Engineering business |
| Zdroj: | IEEE Journal of Quantum Electronics. 47:198-203 |
| ISSN: | 1558-1713 0018-9197 |
| Popis: | We experimentally demonstrate a broadly wavelength-tunable high-energy Yb-doped mode-locked fiber laser without any dispersion compensation. Wide tunability and filtering effect are simultaneously obtained using a fiber Sagnac loop filter in an all-fiber laser mode-locked by a semiconductor saturable absorber mirror. The Sagnac loop filter is constructed with a segment of a high birefringence (HiBi) fiber, a 3-dB coupler, and a polarization controller. By optimizing the HiBi fiber length and adjusting the polarization controller within the loop, the wavelength of the output pulse with 3 nJ pulse energy could be continuously tuned over the range from 1032 to 1052 nm. The heating of the HiBi fiber also led to wavelength shifting of the output pulse with a sensitivity of approximately -0.3-nm°C. |
| Databáze: | OpenAIRE |
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