Harith Ahmad and Samion, M.Z. and Kishan Thambiratnam and Moh. Yasin
(2019)
Widely Tunable Dual-Wavelength Thulium-doped fiber laser Operating in 1.8-2.0 mm Region.
Optik, 179.
pp. 76-81.
Full text not available from this repository.
Abstract
In this work, a tunable dual-wavelength fiber laser (DWFL) with a simple setup is proposed and demonstrated for operation in the 2.0-micron wavelength region. The proposed system employs a ring cavity with a 4-m bi-directionally pumped thulium-doped fiber (TDF) as the linear gain medium, with an inner ring cavity incorporating two tunable bandpass filters (TBPFs) used to generate the desired tunable dual-wavelength output. By fine-tuning the loss of the cavity, peaks of similar intensities for both lasing wavelengths can be obtained by overcoming suppression induced by the homogenous broadening effect, thus producing a stable dual-wavelength output. The widest channel spacing obtained is 183.6 nm, and both lasing wavelengths can be tuned across the 1.8-2.0-micron region by just adjusting the passbands of the TBPFs. The generated dual-wavelength laser has a high signal-to-noise ratio of 66 dB, and its 3-dB bandwidth is measured to be around 0.07 nm. The laser is highly stable, with little-to-none peak fluctuations and no wavelength shift in the lasing wavelengths. The proposed laser is suitable for use in multiple applications near the 2.0-micron region, such as biomedical and industrial applications due to its eye-safe properties. © 2018 Elsevier GmbH
| Item Type: |
Article
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| Additional Information: |
cited By 4 |
| Uncontrolled Keywords: |
Bandpass filters; Fiber lasers; Signal to noise ratio; Thulium, Dual wavelength; Dual wavelength fiber lasers; Dual-wavelength outputs; High signal-to-noise ratio; TBPF; Thulium-doped fibers; tunable; Tunable band-pass filters, Fibers |
| Divisions: |
Artikel Ilmiah > SCOPUS INDEXED JOURNAL |
| Creators: |
| Creators | NIM |
|---|
| Harith Ahmad | UNSPECIFIED | | Samion, M.Z. | UNSPECIFIED | | Kishan Thambiratnam | UNSPECIFIED | | Moh. Yasin | UNSPECIFIED |
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| Depositing User: |
Ika Rudianto
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| Last Modified: |
31 Dec 2020 14:24 |
| URI: |
http://repository.unair.ac.id/id/eprint/102351 |
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