Sub-watt threshold, kilohertz-linewidth Raman distributed-feedback fiber laser
Shi, Jindan, Alam, Shaif-ul and Ibsen, Morten (2012) Sub-watt threshold, kilohertz-linewidth Raman distributed-feedback fiber laser. Optics Letters, 37, (9), 1544-1546 . (doi:10.1364/OL.37.001544).
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We report a low-threshold, narrow linewidth Raman distributed-feedback (R-DFB) fiber laser at 1109.54 nm based on a 30 cm long center π phase-shifted Bragg grating written directly in a commercially available germano-silica (Ge/Si) fiber. The R-DFB was pumped by a continuous-wave (CW) linearly polarized fiber source at 1064 nm, and the threshold power, full width at half-maximum (FWHM) linewidth and slope efficiency with respect to the incident pump power are measured to be 440 mW, <2.5 kHz (measured with a 29.75 km fiber delay line) and 13.5%, respectively. An rf spectrum analyzer confirms that the R-DFB fiber laser exhibits single-frequency performance.
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre
|Date Deposited:||31 May 2012 10:41|
|Last Modified:||26 Jul 2012 00:55|
|Contributors:||Shi, Jindan (Author)
Alam, Shaif-ul (Author)
Ibsen, Morten (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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