A self-pulsing ring cavity ultra-long Raman fiber laser

Zulkifli, Mohd Zamani and Lau, Kuen Yau and Kbashi, Hani Jassim and Yasin, Moh and Mahdi, Mohd Adzir (2018) A self-pulsing ring cavity ultra-long Raman fiber laser. Laser Physics, 28 (11). p. 115104. ISSN 1054-660X, DOI https://doi.org/10.1088/1555-6611/aad935.

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Official URL: https://doi.org/10.1088/1555-6611/aad935


Ultra-long Raman fiber lasers are of significant interest due to their application in the telecommunications industry. In this work we propose a self-pulsing ultra-long Raman fiber laser with a ring cavity configuration. A TrueWave® REACH fiber is deployed as the gain medium for the Raman fiber laser. Three laser cavities with different total cavity lengths are investigated; these generate pulse repetition rates of approximately 25 MHz, 14 MHz and 10 MHz for TrueWave® REACH fibers of lengths 28 km, 56 km and 76 km, respectively. With a similar pump power of 2.48 W a broader spectral bandwidth is observed for the shorter laser cavity. The highest signal-to-noise ratios of 46 dB and 47 dB are attained for laser cavities with 56 km and 76 km TrueWave® REACH fibers at pump powers of 1.62 W and 1.97 W, respectively. This work differs from previous works which mostly employed a linear laser cavity configuration and other gain media to obtain a self-pulsing Raman fiber laser.

Item Type: Article
Funders: H2020 Marie-Sklodowska-Curie Individual Fellowship scheme-TUNEMODE
Uncontrolled Keywords: pulsed fiber laser; Raman fiber laser; ultra-long fiber laser
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Jan 2019 01:54
Last Modified: 25 Jan 2019 01:54
URI: http://eprints.um.edu.my/id/eprint/20155

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