Wavelength-tunable narrow-linewidth gaseous Raman laser
| Autor: | Xianglong Cai, Jinbo Liu, Jingwei Guo, Xinjun Su, Dong Liu, Ying Chen, Shen Chencheng, Yuxi Jia, Zheng Tiancheng |
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| Rok vydání: | 2021 |
| Předmět: |
Range (particle radiation)
Materials science business.industry Physics::Optics Laser pumping Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Laser linewidth symbols.namesake Wavelength Optics Raman laser law 0103 physical sciences symbols Physics::Atomic Physics Electrical and Electronic Engineering business Raman spectroscopy Engineering (miscellaneous) Laser beams |
| Zdroj: | Applied optics. 60(18) |
| ISSN: | 1539-4522 |
| Popis: | Gaseous Raman lasers cover a range of wavelengths but lack wavelength tunability. Here, a 1 c m − 1 linewidth 532 nm laser was used as a pump laser, and with a narrow-linewidth seed laser injection, a narrow-linewidth first Stokes (S1) Raman laser was achieved. By tuning the wavelength of the seed laser, a tuning range of S1 up to 1 c m − 1 was obtained. The wavelengths of the first anti-Stokes and second Stokes lasers could also be tuned. A theoretical model was developed, and spectral profiles of Raman lasers from experiments and simulations agreed well; further simulation predicted that the linewidth of S1 could be compressed to as narrow as 0.01 c m − 1 under optimal conditions. A universal method of fine-tunable Raman lasers is presented that can be utilized in several important applications. |
| Databáze: | OpenAIRE |
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