A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber
We have proposed and demonstrated a novel switchable single-longitudinal-mode (SLM), dual-wavelength erbium-doped fiber laser (DWEDFL) assisted by Rayleigh backscattering (RBS) in a tapered fiber in a ring laser configuration. The RBS feedback in a tapered fiber is a key mechanism as linewidth narro...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/79326 http://hdl.handle.net/10220/38807 |
| _version_ | 1826123405357744128 |
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| author | Gu, Jian Yang, Yanfu Liu, Meng Zhang, Jianyu Wang, Xiaorui Yuan, Yijun Yao, Yong |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Gu, Jian Yang, Yanfu Liu, Meng Zhang, Jianyu Wang, Xiaorui Yuan, Yijun Yao, Yong |
| author_sort | Gu, Jian |
| collection | NTU |
| description | We have proposed and demonstrated a novel switchable single-longitudinal-mode (SLM), dual-wavelength erbium-doped fiber laser (DWEDFL) assisted by Rayleigh backscattering (RBS) in a tapered fiber in a ring laser configuration. The RBS feedback in a tapered fiber is a key mechanism as linewidth narrowing for laser output. A compound laser cavity ensured that the EDFL operated in the SLM state and a saturable absorber (SA) is employed to form a gain grating for both filtering and improving wavelength stability. The fiber laser can output dual wavelengths simultaneously or operate at single wavelength in a switchable manner. Experiment results show that with the proper SA, the peak power drift was improved from 1–2 dB to 0.31 dB and the optical signal to noise ratio was higher than 60 dB. Under the assistance of RBS feedback, the laser linewidths are compressed by around three times and the Lorentzian 3 dB linewidths of 445 Hz and 425 Hz are obtained at 1550 nm and 1554 nm, respectively. |
| first_indexed | 2024-10-01T06:04:07Z |
| format | Journal Article |
| id | ntu-10356/79326 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:04:07Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/793262020-03-07T13:57:22Z A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber Gu, Jian Yang, Yanfu Liu, Meng Zhang, Jianyu Wang, Xiaorui Yuan, Yijun Yao, Yong School of Electrical and Electronic Engineering Fiber Bragg gratings Linewidths Stimulated Brillouin scattering Cavitation Fiber lasers We have proposed and demonstrated a novel switchable single-longitudinal-mode (SLM), dual-wavelength erbium-doped fiber laser (DWEDFL) assisted by Rayleigh backscattering (RBS) in a tapered fiber in a ring laser configuration. The RBS feedback in a tapered fiber is a key mechanism as linewidth narrowing for laser output. A compound laser cavity ensured that the EDFL operated in the SLM state and a saturable absorber (SA) is employed to form a gain grating for both filtering and improving wavelength stability. The fiber laser can output dual wavelengths simultaneously or operate at single wavelength in a switchable manner. Experiment results show that with the proper SA, the peak power drift was improved from 1–2 dB to 0.31 dB and the optical signal to noise ratio was higher than 60 dB. Under the assistance of RBS feedback, the laser linewidths are compressed by around three times and the Lorentzian 3 dB linewidths of 445 Hz and 425 Hz are obtained at 1550 nm and 1554 nm, respectively. Published version 2015-10-16T05:57:33Z 2019-12-06T13:22:37Z 2015-10-16T05:57:33Z 2019-12-06T13:22:37Z 2015 2015 Journal Article Gu, J., Yang, Y., Liu, M., Zhang, J., Wang, X., Yuan, Y., et al. (2015). A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber. Journal of Applied Physics, 118(10), 103107-. https://hdl.handle.net/10356/79326 http://hdl.handle.net/10220/38807 10.1063/1.4930054 en Journal of Applied Physics © 2015 American Institute of Physics (AIP). This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: [http://dx.doi.org/10.1063/1.4930054]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | Fiber Bragg gratings Linewidths Stimulated Brillouin scattering Cavitation Fiber lasers Gu, Jian Yang, Yanfu Liu, Meng Zhang, Jianyu Wang, Xiaorui Yuan, Yijun Yao, Yong A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber |
| title | A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber |
| title_full | A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber |
| title_fullStr | A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber |
| title_full_unstemmed | A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber |
| title_short | A switchable and stable single-longitudinal-mode, dual-wavelength erbium-doped fiber laser assisted by Rayleigh backscattering in tapered fiber |
| title_sort | switchable and stable single longitudinal mode dual wavelength erbium doped fiber laser assisted by rayleigh backscattering in tapered fiber |
| topic | Fiber Bragg gratings Linewidths Stimulated Brillouin scattering Cavitation Fiber lasers |
| url | https://hdl.handle.net/10356/79326 http://hdl.handle.net/10220/38807 |
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