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Tapered-EDF-based Mach-Zehnder interferometer for dual-wavelength fiber laser


Citation

Md Ali, M. I. and Ibrahim, Siti Azlida and Abu Bakar, Muhammad Hafiz and Muhammad Noor, Ahmad Shukri and Ahmad Anas, Siti Barirah and Abdul Kadir, Muhammad Zamzuri and Mahdi, Mohd Adzir (2014) Tapered-EDF-based Mach-Zehnder interferometer for dual-wavelength fiber laser. IEEE Photonics Journal, 6 (5). art. no. 5501209 . pp. 1-10. ISSN 1943-0647; ESSN: 1943-0655

Abstract

An all-fiber comb filter using a tapered-erbium-doped fiber in a Mach-Zehnder interferometer structure is presented. The free spectral range, extinction ratio, bandwidth, and interference pattern of the comb filter can be shaped by controlling the taper waist length and the length of up and down taper transition regions. By varying the taper waist length from 5 to 25 mm, the free spectral range changes from 14.7 to 1.0 nm, and the linewidth varies from 3.3 to 0.3 nm, respectively. We demonstrate a tunable dual-wavelength laser by using the tapered-erbium-doped fiber as a gain medium as well as a wavelength-selective element. The laser can be tuned at a resolution of 0.2 nm with a side-mode suppression ratio of up to 46.88 dB and a linewidth of 0.09 nm.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/JPHOT.2014.2361642
Publisher: Institute of Electrical and Electronics Engineers
Keywords: Tapered fiber; Mach–Zehnder interferometer; Fiber laser
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 18 Jan 2016 02:00
Last Modified: 18 Jan 2016 02:00
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/JPHOT.2014.2361642
URI: http://psasir.upm.edu.my/id/eprint/35595
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