Widely tunable Raman ring laser using highly nonlinear fiber.
An all-optical widely tunable Raman fiber laser has been realized by incorporating a highly nonlinear fiber in a ring cavity. By feedback a portion of Raman Stokes wave back into the highly nonlinear gain medium, a Raman fiber laser is generated. We found that the lasing wavelength of Raman fiber la...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Maik Nauka-Interperiodica Publishing
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/17645/ http://psasir.upm.edu.my/id/eprint/17645/1/Widely%20tunable%20Raman%20ring%20laser%20using%20highly%20nonlinear%20fiber.pdf |
| Summary: | An all-optical widely tunable Raman fiber laser has been realized by incorporating a highly nonlinear fiber in a ring cavity. By feedback a portion of Raman Stokes wave back into the highly nonlinear gain medium, a Raman fiber laser is generated. We found that the lasing wavelength of Raman fiber laser can be tuned from 1537 to 1568 nm with peak power fluctuation within 1 dB, giving a total wavelength tunability of 31 nm. The optical signal-to-noise ratio is found to be wavelength dependent, and the highest optical signal-to-noise ratio of about 59 dB is recorded. The lasing threshold of the Raman fiber laser with this configuration is found to be as low as 300 mW |
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