A self-pulsing ring cavity ultra-long Raman fiber laser
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 l...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/84033/7/84033_A%20self-pulsing%20ring%20cavity%20ultra-long%20Raman%20fiber%20laser.pdf http://irep.iium.edu.my/84033/ https://iopscience.iop.org/article/10.1088/1555-6611/aad935 |
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| Institution: | Universiti Islam Antarabangsa Malaysia |
| Language: | English |
| Summary: | 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. |
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