Razak, Nor Farhah and Ahmad, H. and Zulkifli, Mohd Zamani and Mohd Daud, Farah Diana and Munajat, Yusof and Harun, Sulaiman Wadi (2015) Single mode EDF fiber laser using an ultra-narrow bandwidth tunable optical filter. Optik, 126 (2). pp. 179-183. ISSN 0030-4026 E-ISSN 1618-1336
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Abstract
Single longitudinal mode (SLM) erbium-doped fiber (EDF) laser operation using a commercialized ultranarrow bandwidth optical filter has been demonstrated. A 2-m long EDF with an absorption coefficient of 24 dB m−1 at the pump wavelength is used as gain medium. The ultra-narrow tunable filter is used for selection of a single longitudinal mode from the available spectrum of multiple modes, which originally exist in the FBG’s reflection spectrum. Our approach provides a relatively simple and direct method for realization of SLM operation. A high-resolution optical spectral analyser with a resolution of 0.16 pm is used to observe the output spectrum. To verify the SLM operation, the delayed self-heterodyne method is used, giving a measured laser linewidth of 61.5 kHz.
| Item Type: | Article (Journal) |
|---|---|
| Additional Information: | 8870/84158 |
| Uncontrolled Keywords: | Single longitudinal mode (SLM), Ultra-narrow tunable filter, Delayed self-heterodyne method |
| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Science > Department of Physics |
| Depositing User: | Dr M Z Zulkifli |
| Date Deposited: | 04 Nov 2020 21:51 |
| Last Modified: | 04 Nov 2020 21:51 |
| URI: | http://irep.iium.edu.my/id/eprint/84158 |
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