Dual-Wavelength Q-switched Fiber Laser Generation by Incorporating 2D Materials in D-SMS Fiber Structure

Abstract We demonstrate a dual-wavelength Q-switched fiber laser generation by inserting a combination of SM-MM-SM fiber and a d-shape structure. This combination is known as D-SMS fiber. By side-polishing an SM fiber with 1-dB loss, the d-shape fiber structure is obtained. Then the d-shape SM fiber...

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Published inJournal of physics. Conference series Vol. 2627; no. 1; pp. 12010 - 12015
Main Authors Zaini, M. A. Z., Saaid, N. F. F. M., Rusdi, M. F. M., Latiff, A. A., Rahman, M. F. A., Al-Masoodi, A. H. H.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2023
Subjects
d-shape
Fiber lasers
Graphene
Mach-Zehnder Interferometer
Physics
Pulse duration
Q switched lasers
Q-switched
saturable absorber
Two dimensional materials
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Summary:Abstract We demonstrate a dual-wavelength Q-switched fiber laser generation by inserting a combination of SM-MM-SM fiber and a d-shape structure. This combination is known as D-SMS fiber. By side-polishing an SM fiber with 1-dB loss, the d-shape fiber structure is obtained. Then the d-shape SM fiber is spliced to 25 cm long MM and SM fiber to form a D-SMS fiber structure. After inserting D-SMS fiber, a stable dual-wavelength presence at 1562.8 nm and 1563.8 nm (1 nm wavelength spacing). The pulse train generates once we deposited a graphene oxide solution onto the surface of the d-shape structure. This Q-switching operation mode obtained from 45 mW to 111 mW pump power with a maximum pulse energy of 56 nJ. The repetition rate and pulse width have been recorded from 34 kHz to 55 kHz and from 10.22 µs to 6.47 µs, respectively.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2627/1/012010