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Femtosecond Pulses Write Fiber Bragg Gratings

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Breck Hitz

A group at the Communications Research Centre Canada in Ottawa has presented an alternative means of writing fiber Bragg gratings that uses femtosecond pulses of 800-nm radiation from a Ti:sapphire laser. The advantage of such an approach, according to team leader Stephen J. Mihailov, is that extremely high index modulations in the fiber can be produced with just a few laser pulses. No additional processing is required, so it has the potential to remove several steps from the fabrication of commercial fiber Bragg gratings. Moreover, although many UV-written gratings fade at elevated...Read full article

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    Published: August 2003
    800-nm radiationBragg gratingsCommunicationsConsumerFemtosecond pulsesfiber opticsResearch & TechnologyTech PulseTi:sapphire laserwriting fiberLasers

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