Ahmad, H. and Razak, Nor Farhah and Zulkifli, Mohd Zamani and Muhammad, Farah Diana and Munajat, Yusof and Harun, Sulaiman Wadi (2014) Closely spaced dual-wavelength fiber laser using an ultra narrow bandwidth optical filter for low radio frequency generation. Applied Optics, 53 (19). pp. 4123-4127. ISSN 1559-128X E-ISSN 2155-3165
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Abstract
A dual-wavelength (DW) fiber laser with a closely spaced single longitudinal mode (SLM) output is proposed and demonstrated. The proposed fiber laser utilizes a conventional fiber Bragg grating with a center wavelength of about 1546.8 nm in conjunction with an ultranarrow bandwidth tunable optical filter to generate the desired DW SLM output. Observations with a very high resolution optical spectrum analyzer, which was capable of achieving resolutions up to 0.16 pm, revealed detailed spectral characteristics not characteristically seen before. A channel spacing of up to 58 nm was realized, and spacing as small as 2 pm was achieved. The minimum channel spacing and its resulting beat frequency are the narrowest observed yet to the best of our knowledge for a DW fiber laser at room temperature. © 2014 Optical Society of America OCIS codes: (060.0060) Fiber optics and optical communications; (060.2410) Fibers, erbium; (060.2840) Heterodyne; (060.3735) Fiber Bragg gratings; (060.5625) Radio frequency photonics.
| Item Type: | Article (Journal) |
|---|---|
| Additional Information: | 8870/84294 |
| Uncontrolled Keywords: | dual-wavelength fiber laser, ultra narrow bandwidth optical filter, low radio frequency generation |
| Subjects: | Q Science > QC Physics |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Science > Department of Physics Kulliyyah of Science |
| Depositing User: | Dr M Z Zulkifli |
| Date Deposited: | 11 Nov 2020 11:48 |
| Last Modified: | 11 Nov 2020 11:48 |
| URI: | http://irep.iium.edu.my/id/eprint/84294 |
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