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

Muhd Zamani, Zulkifli and K. Y., Lau and H., Kbashi and Moh, Yasin and M. A., Mahdi (2018) A self-pulsing ring cavity ultra-long Raman fiber laser. Laser Physics, 28 (11). pp. 1-5. ISSN 1054-660X E-ISSN 1555-6611

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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 (Journal)
Additional Information: 8870/84033
Uncontrolled Keywords: Raman fiber laser, ultra-long fiber laser, pulsed fiber laser.
Subjects: Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science
Depositing User: Dr M Z Zulkifli
Date Deposited: 02 Nov 2020 10:45
Last Modified: 02 Nov 2020 10:45
URI: http://irep.iium.edu.my/id/eprint/84033

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