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Hans Georg Limberger

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Publications associées (82)

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Bragg gratings were inscribed in H2-loaded SMF-28e optical fibers and measured for axial stress changes for various exposure doses. Mean refractive index changes as high as 7.5 × 10-3 were observed under cw-244 nm irradiation of 143 W/cm2. Bragg grating re ...

Optical Soc Amer2012

Stress changes induced by cw-244-nm Ar+ irradiation in H2-loaded SMF-28e optical fibers

Hans Georg Limberger, Georgios Violakis, Nandita Aggarwal

Fiber Bragg Gratings were fabricated in H2-loaded SMF-28e fibers using a cw-244-nm Ar+ laser with varying total fluence. Stress measurements revealed initial expansion followed by compaction. ...

(Optical Society of America, Washington, DC, 2012)2012

An ArF excimer laser was used to fabricate Bragg gratings in Bi:SiO2 core - microstructured cladding optical fiber. Average and modulated refractive index changes of 2.7 × 10E-4 and 1.0 × 10E-4 were induced in pristine fiber. Fiber luminescence was also me ...

2012

An ArF excimer laser was used to fabricate Bragg gratings in fibers with Bi-SiO2 core and microstructured or F-doped claddings without fiber presensitization. Average and modulated refractive index changes of 2.7 x 10(-4) and 1.0 x 10(-4) were induced in p ...

Optical Society of America2012

Bragg gratings with reflectivity > 93% were fabricated in Bi-Al co-doped H-2-loaded optical fibers. Average index changes as high as +2.5x10(-3) were obtained. Positive core stress changes indicate a compaction contribution to the total index change. ...

Optical Soc America, 2010 Massachusetts Ave Nw, Washington, Dc 20036 Usa2011

Fabrication/Characterization of Fiber Gratings and Photosensitivity in Ge-Free Bi-Al-Silica Fibers - INVITED

Hans Georg Limberger, Georgios Violakis, Christian Ban

Refractive index changes up to 2.5 × 10-3 were demonstrated in H2-loaded germanium free Bi-Al-doped silica fibers using both ArF excimer and cw-Ar+-244 nm lasers. Tensile stress changes indicate clear contribution of compaction to the total index change. ...

2011

Photosensitivity and stress changes of Ge-free Bi-Al doped silica optical fibers under ArF excimer laser irradiation

Hans Georg Limberger, Christian Ban

The photosensitivity of germanium free Bi-Al-doped silica fibers with different bismuth concentrations was investigated using ArF excimer laser radiation at 193 nm and fiber grating formation. For the fiber with the highest bismuth concentration maximum re ...

Optical Society of America2011

Reliability of Fiber Components (Invited Plenary talk)

Hans Georg Limberger, Georgios Violakis

The reliability of optical fibers and components is reviewed with a focus on the reliability of optical fiber gratings. ...

2011

Fabrication of mode field converter in H2-loaded SMF-28e using CW-Ar+ laser

Hans Georg Limberger, Georgios Violakis, Nandita Aggarwal

We report on mode field diameter changes of -31% due to UV-induced core refractive index changes of

Optical Soc America, 2010 Massachusetts Ave Nw, Washington, Dc 20036 Usa2011

Fabrication and thermal decay of fiber Bragg gratings in pristine and H-2-loaded Bi-Al co-doped optical fibers

Hans Georg Limberger, Georgios Violakis

A cw-244-nm-Ar+ laser was used to fabricate Bragg gratings in pristine and H-2-loaded Bi-Al-SiO2 optical fibers with index changes as high as 3.6 x 10(-4) and 19.3 x 10(-4), respectively. For comparison, fiber Bragg gratings in pristine and H-2-loaded SMF- ...

Optical Society of America2011