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Stretched Taper Tunes Fiber Laser Wavelength

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Simple mechanism may have applications in telecom, elsewhere.

Breck Hitz

At the University of Arizona in Tucson, investigators have used the modal interference in a tapered fiber to fabricate a wavelength-tunable filter inside a fiber laser and have tuned the laser’s wavelength by physically stretching the taper. They believe that the taper-tuned laser could be useful as a tunable source in optical telecom systems. A fiber taper is formed by heating the fiber and pulling it so that the softened glass narrows to a waist in the middle of the heated region. If a suitable taper is fabricated in a length of single-mode fiber, single-mode light propagating in the...Read full article

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    Published: October 2006
    Communicationsdiode lasersfiber lasersfiber opticsResearch & Technologytaperwavelength-tunable filterLasers

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