WebJan 4, 2024 · High-power Raman fiber lasers (RFL) have recently attracted great interest due to their low quantum defects, high conversion efficiency, and unique wavelength agility … WebAbstract. High-power continuous-wave single-frequency Er-doped fiber amplifiers at 1560 nm by in-band and core pumping of a 1480 nm Raman fiber laser are investigated in detail. Both co- and counter-pumping configurations are studied experimentally. Up to 59.1 W output and 90% efficiency were obtained in the fundamental mode and linear ...
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WebOct 5, 2024 · Another way to obtain high-power laser output is the Raman fiber laser (RFL), which employs the stimulated Raman scattering (SRS) effect in a piece of passive fiber without any rare-earth dopants [6–8]. Compared with Yb-doped fiber lasers (YDFLs), the most attractive feature of the RFL is wavelength flexibility. WebThe laser reaches an output power of 2.4 kW from a single fiber laser module, with a nominal power of 2 kW. Up to four fiber laser units can be combined by an all-fiber power combiner for a total nominal power of 8 kW, which can be delivered by up to four 100-μm-core-diameter process fibers to the processing cell. ts566 technical information
Raman suppression in high-power fiber laser oscillator by long …
WebJan 8, 2024 · The cascaded Raman fiber laser is a proven technology that provides wavelength agile high-power fiber lasers outside the rare-earth emission windows. However, conventional cascaded Raman fiber lasers lack wavelength agility due to the use of fixed wavelength fiber Bragg gratings. Recently, proposed cascaded Raman fiber lasers based … WebNov 9, 2024 · Raman nonlinearity induces beam cleanup in long graded-index fibres within a laser cavity, even for CW Stokes beams pumped by highly-multimode laser diodes (LDs). This leads to a breakthrough... Webdepicted in Fig. 1. A phosphorus-doped Raman fiber laser centered at 1238.90 nm acted as a pump source, which was obtained intracavity pumped by a 1064 nm fiber laser, as illustrated in the dotted line of Fig. 1. A section of 120 m Bi - doped (core diameter of 6.4 µm) fiber worked as gain fiber through a 1238.90/1350 nm wavelength division phillip thompson oam