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Fiber Lasers

About Fiber Lasers

Fiber lasers use optical fibers doped with low levels of rare-earth halides as the lasing medium to amplify light. Fiber lasers are constructed within an optical fiber and are similar in concept to gas lasers and laser diodes, except that a part of the fiber itself is used as the resonating cavity where the laser action takes place. A fiber laser use fiber optics to generate and deliver laser beams instead of the traditional hard optic resonator and beam delivery method. This helps eliminate many alignment, thermal, contamination, and maintenance issues. Laser and fiber optics are a system of lasers and flexible quartz or glass fibers that use total internal reflection (TIR) to pass light through thousands of glancing (total internal) reflections.

Fiber lasers are constructed within optical fibers that provide several orders of magnitude and are more efficient than conventional lasers. They can be pumped by laser diodes and can easily operate in a single spatial mode. For these reasons, fiber lasers can be considered as compact, solid-state lasers of high efficiency and good beam quality. A fiber optic laser provides output that can be tuned over a broad range and can be broadband. Fiber lasers can fit into several configurations for optical communications, such as highly parallel optical data links for high speed computing, wavelength division multiplexed (WDM) systems, and optical clock recovery circuits for high-speed optical receivers.

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