Ge-codoped Laser Fibers for Mitigating Stimulated Brillouin Scattering in High Power Fiber Amplifiers
Rare-earth doped fibers for high power fiber amplifiers normally have a small refractive index difference between the core and inner cladding, but have a larger core diameter than conventional telecom fibers. We take advantage of this feature as well as the difference between the optical and acoustic waveguides and proposed several fiber designs to mitigate Stimulated Brillouin Scattering (SBS) to produce higher output powers. The numerical modeling showed that an increase in SBS threshold by 3-5 dB can be achieved using Ge-codopant while maintaining diffraction limited beam quality. The study also highlights the need to take into account the effects of minor refractive index profile variation in evaluating SBS performance.
Xin Chen Ming-Jun Li Anping Liu
Corning Incorporated, SP-AR-01-2, Corning, NY 14831
国际会议
Asia Communications and Photonics Conference and Exhibition(2010亚洲光纤通信与光弹博览会及研讨会 ACP 2010)
上海
英文
587-592
2010-12-08（万方平台首次上网日期，不代表论文的发表时间）