Ahmad, Harith and Zulkifli, Ahmad Zarif and Yasin, Moh and Ismail, Mohammad Faizal and Thambiratnam, Kavintheran (2018) In2Se3 saturable absorber for generating tunable Q-switched outputs from a bismuth–erbium doped fiber laser. Laser Physics Letters, 15 (11). p. 115105. ISSN 1612-2011, DOI https://doi.org/10.1088/1612-202X/aae13b.
Full text not available from this repository.Abstract
An Indium-selenide based saturable absorber is proposed and demonstrated for the passive generation of Q-switched pulses in a C- to L-band fiber laser. The proposed laser uses a 21 cm long bismuth-erbium doped fiber (Bi-EDF) as the linear gain medium, and is capable of generating passively Q-switched outputs that can be tuned over a bandwidth of 40 nm from 1533 nm to 1573 nm. The generated pulses have a maximum repetition rate of 52 kHz and a minimum pulse width of 2.2 μs at the maximum available pump power of 134 mW. Similarly, a maximum pulse energy and average output power of 13.5 nJ and 0.7 mW respectively are obtained at the same pump power. Radio frequency measurement indicates a stable pulse obtained with a high signal-to-noise ratio of 42.8 dB and with no other frequency peaks observed, indicating that only the fundamental mode is present. The proposed tunable Q-switched Bi-EDF laser would have significant potential for applications requiring tunable, high energy pulses such as spectroscopy and medicine in the C- and L-band regions.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education, (MOHE) Malaysia under the grant LRGS (2015) NGOD/UM/KPT and GA 010-2014 (ULUNG), University of Malaya under the grant RU 001-2017 |
| Uncontrolled Keywords: | bismuth-erbium; indium-selenide (In 2 Se 3 ); Q-switching; saturable absorber (SA) |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 07 Oct 2019 03:56 |
| Last Modified: | 07 Oct 2019 03:56 |
| URI: | http://eprints.um.edu.my/id/eprint/22682 |
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