Experimental study on linewidth compression based on Rayleigh backscattering in 1064 nm fiber laser
| Autor: | Tianyi Lan, Guolu Yin, Dingrong Qu, Feng Qiu, Iroegbu Paul Ikechukwu, Xianbin Huang, Tao Zhu, Yongzhong Bai, Ligang Huang, Yulong Cao, Shihong Huang, Fuhui Li |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Single-mode optical fiber 02 engineering and technology 021001 nanoscience & nanotechnology Compression (physics) Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics Longitudinal mode Laser linewidth Wavelength Optics law Fiber laser 0103 physical sciences Fiber Electrical and Electronic Engineering Physical and Theoretical Chemistry 0210 nano-technology business |
| Zdroj: | Optics Communications. 430:268-272 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2018.08.058 |
| Popis: | Attributed to the unique energy level structure of the Yb 3 + , it is arduous to effectively compress the linewidth of Ytterbium-doped fiber (YDF) laser by conventional methods. Herein, we investigated Rayleigh backscattering (RBS) characteristics in single mode fiber-1060-XP (SMF-1060-XP) and the linewidth compression efficacy of RBS in 1064 nm laser system. A single longitudinal mode (SLM) fiber laser operating at 1064 nm has been obtained, and the 3 dB linewidth can be compressed from 8.01 kHz to 1.35 kHz thereby yielding a side mode suppression ratio as high as ∼ 50 dB provided the pump power is set to 390 mW. The theoretical prediction suggests the feasibility to actualize a linewidth of hundreds of Hertz provided the experimental setup is further optimized. The investigation of our work has a potential application in the study of linewidth compression of short cavity lasers or DFB lasers operating at a 1064 nm wavelength. |
| Databáze: | OpenAIRE |
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