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10 January 2005 Comparison between the performance of the P-doped and Ge-doped Raman fiber lasers based on numerical simulations
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Proceedings Volume 5623, Passive Components and Fiber-based Devices; (2005) https://doi.org/10.1117/12.574644
Event: Asia-Pacific Optical Communications, 2004, Beijing, China
Abstract
With a published model that describes a nested fiber Raman cavity using FBGs as reflectors, we have made numerical simulations for the comparison between the performance of P-doped and Ge-doped fiber. Although the former fibers are the standard choice for fiber Raman lasers due to the large Raman gain, the latter can be also of interest because they present a large Raman shift so that the configuration of the Raman fiber laser can be simplified. We have considered a two-step Raman laser using a P-doped fiber and a six-step Raman laser using a Ge-doped fiber, both pumped by 1060 nm and emitting at 1480 nm. The effects of the Raman fiber length, output coupler reflectivity and splice loss upon the behavior of both lasers are studied. Simulation results show that the P-doped fiber laser requires a longer fiber length while the Ge-doped fiber laser requires a higher output mirror reflectivity, and the RFL using Ge-doped fiber is more sensitive to the splice loss because of its large Stokes wave number. Finally, by comparison in the optimum configuration, we find that the P-doped fiber laser shows better output characteristics than Ge-doped fiber laser.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ming Feng, Yi-Gang Li, Jing Li, Jia-Fang Li, Sheng-Ping Chen, and Kecheng Lu "Comparison between the performance of the P-doped and Ge-doped Raman fiber lasers based on numerical simulations", Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); https://doi.org/10.1117/12.574644
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