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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Description/Abstract
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.
| Item Type: | Article |
|---|---|
| ISSNs: | 0146-9592 (print) 1539-4794 (electronic) |
| Related URLs: | |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre |
| Item ID: | 339828 |
| 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) |
| Date: | 2012 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/339828 |
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