EXTERNAL CAVITY LASER WITH A TUNABLE HOLOGRAPHIC ELEMENT
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United States of America Patent
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app pub date -
Dec 15, 2008
filing date -
Jan 6, 2006
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Abandoned
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Abstract
Embodiments of systems and methods are provided for a tunable laser device. The tunable laser device may include a tunable Bragg reflector that allows its wavelength to be tuned via temperature and/or pressure. This Bragg reflector may include holographic material in which a Bragg grating may be formed comprising parallel fringes of alternating index of refractions. Temperature and/or pressure changes may be effected in the Bragg reflector by, for example, a thermoelectric cooler and/or piezo transducer.
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