Tunable Raman fiber laser induced by Rayleigh back-scattering in an ultra-long cavity

被引：19
作者：
Sarmani, A. R. [1 ]
Zamiri, R. [2 ]
Abu Bakar, M. H. [1 ]
Azmi, B. Z. [2 ]
Zaidan, A. W. [2 ]
Mahdi, M. A. [1 ]
机构：
[1] Univ Putra Malaysia, Wireless & Photon Network Res Ctr, Fac Engn, Upm Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Dept Phys, Fac Sci, Upm Serdang 43400, Selangor, Malaysia
来源：
JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS | 2011年 / 6卷
关键词：
Raman fiber laser; Rayleigh scattering; spectral broadening; FEEDBACK;
D O I：
10.2971/jeos.2011.11043
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an ultra-long Raman laser with a 46 km fiber length that behaved as a Rayleigh back-scattering-based optical feedback. The laser was tunable from 1550 nm to 1571 nm (3 dB bandwidth) with the insertion of an optical grating filter. Evaluations on the spectral evolution and power development were also performed from the results obtained. In fact, it was discovered that the spectral broadening effect between the modeless spectra resembled the same process that happens in a typical fiber cavity that has high reflectors at each cavity end. In addition, the output power showed a square-root development with respect to the input power. [DOI: http://dx. doi. org/10.2971/jeos.2011.11043]
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页数：4
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