High fluence KrF excimer laser fabricated Bragg grating in a microfiber
نویسندگان
چکیده
منابع مشابه
Femtosecond laser fabricated fiber Bragg grating in microfiber for refractive index sensing.
Fiber Bragg grating (FBG) is fabricated in the microfiber by the use of femtosecond laser pulse irradiation. Such a grating can be directly exposed to the surrounding medium without etching or thinning treatment of the fiber, thus possessing high refractive index (RI) sensitivity while maintaining superior reliability. The grating in the microfiber may have a number of propagation modes in its ...
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Optical fiber Bragg gratings (FBG) are key devices for optical communication and sensors. FBGs are based on a periodic variation in the refractive index of the fiber core and allow for the reflection of a narrowband signal centered at a specific Bragg wavelength. Over the last two decades, FBGs have been manufactured mainly by modifying the core refractive index using interferometric or point-b...
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Applying Bragg gratings in Al2O3 channel waveguides, we demonstrate distributed Bragg reflectors with Qfactors of 1.0210 6 . An integrated Al2O3:Yb 3+ waveguide laser with 67% slope efficiency and 47 mW output power is achieved with such cavities.
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We present a type of phase-shifted fiber Bragg gratings based on an in-grating bubble fabricated by femtosecond (fs) laser ablation together with a fusion-splicing technique. A microchannel vertically crossing the bubble is drilled by fs laser to allow liquid to flow in or out. By filling different refractive index (RI) liquid into the bubble, the phase-shift peak is found to experience a linea...
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Fiber Bragg grating is inscribed on microfiber with femtosecond laser pulses irradiation. The microfiber is fabricated by stretching a section of single mode fiber over a flame. Periodic grooves are carved on the microfiber by the laser as have been observed experimentally. The microfiber Bragg grating is demonstrated for temperature and strain sensing, and the strain sensitivity is improved wi...
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ژورنال
عنوان ژورنال: Physics Procedia
سال: 2011
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2011.06.167