Ahmad, Harith and Razak, N.F. and Zulkifli, M.Z. and Muhammad, F.D. and Munajat, Y. and Harun, Sulaiman Wadi (2014) Closely spaced dual-wavelength fiber laser using an ultranarrow bandwidth optical filter for low radio frequency generation. Applied Optics, 53 (19). pp. 4123-4127. ISSN 0003-6935, DOI https://doi.org/10.1364/AO.53.004123.
Full text not available from this repository.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.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Closely spaced dual-wavelength fiber laser; Ultranarrow bandwidth optical filter; Low radio frequency generation |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 26 Oct 2015 05:18 |
| Last Modified: | 09 Oct 2018 05:18 |
| URI: | http://eprints.um.edu.my/id/eprint/14333 |
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