Search Results - "Grobnic, D."

Sapphire fiber Bragg grating sensor made using femtosecond laser radiation for ultrahigh temperature applications by Grobnic, D., Mihailov, S.J., Smelser, C.W., Huimin Ding

“…We report for the first time the inscription of retro-reflective Bragg gratings in multimode crystalline sapphire fiber. The gratings were fabricated using…”
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Femtosecond IR laser fabrication of Bragg gratings in photonic crystal fibers and tapers by Mihailov, S.J., Grobnic, D., Huimin Ding, Smelser, C.W., Jes Broeng

“…Fiber Bragg gratings were written in pure silica photonic crystal fibers (PCFs) and PCF tapers with 125-fs 800-nm infrared radiation. High reflectivities were…”
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Characterization of the Birefringence in Fiber Bragg Gratings Fabricated With an Ultrafast-Infrared Laser by Ping Lu, Grobnic, D., Mihailov, S.J.

“…The changes of birefringence in Type I-infrared (Type I-IR) and Type II-IR fiber Bragg gratings induced by an ultrafast-IR laser in SMF-28 fibers are examined…”
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Bragg gratings made in reverse proton exchange lithium niobate waveguides with a femtosecond IR laser and a phase mask by Grobnic, D., Mihailov, S.J., Smelser, C.W., Genereux, F., Baldenberger, G., Vallee, R.

“…Three-decibel reflecting Bragg gratings were made in buried reverse proton exchange lithium niobate waveguides with high-power femtosecond infrared radiation…”
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Ultrafast IR Laser Writing of Strong Bragg Gratings Through the Coating of High Ge-Doped Optical Fibers by Grobnic, D., Mihailov, S.J., Smelser, C.W., Ramos, R.T.

“…Strong fiber Bragg gratings were written through the standard polymer coatings of "off-the-shelf" high numerical aperture single-mode optical fibers after a…”
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Localized High Birefringence Induced in SMF-28 Fiber by Femtosecond IR Laser Exposure of the Cladding by Grobnic, D., Mihailov, S.J., Smelser, C.W.

“…A process for creating a local high fiber birefringence and large variation in refractive-index modulation with a polarization in fiber Bragg gratings using…”
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Plane-by-plane inscription of grating structures in optical fibers by Lu, P., Mihailov, S. J., Ding, H., Grobnic, D., Walker, R., Coulas, D., Hnatovsky, C., Naumov, A. Y.

“…Plane-by-plane fabrication of fiber Bragg gratings in optical fibers using short-pulse femtosecond IR laser is proposed and demonstrated. By incorporating a…”
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Fiber Bragg gratings with suppressed cladding modes made in SMF-28 with a femtosecond IR laser and a phase mask by Grobnic, D., Smelser, C.W., Mihailov, S.J., Walker, R.B., Lu, P.

“…High reflectivity fiber Bragg gratings (FBG) with strong cladding mode suppression were written in standard telecom fiber (SMF-28) with femtosecond 800-nm…”
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Bragg Gratings Made With a Femtosecond Laser in Heavily Doped Er-Yb Phosphate Glass Fiber by Grobnic, D., Mihailov, S.J., Walker, R.B., Smelser, C.W., Lafond, C., Croteau, A.

“…Bragg gratings made in heavily doped phosphate glass fibers using ultrafast infrared radiation and a phase mask are reported. Refractive indexes >1.5times10 -3…”
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Femtosecond IR Laser Inscription of Bragg Gratings in Single- and Multimode Fluoride Fibers by Grobnic, D., Mihailov, S.J., Smelser, C.W.

“…We report for the first time the fabrication of fiber Bragg gratings in both single- and multimode undoped fluoride fibers using femtosecond 800-nm radiation…”
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High-Reflectivity Thermally Stable Ultrafast Induced Fiber Bragg Gratings in H -Loaded SMF-28 Fiber by Smelser, C.W., Grobnic, D., Mihailov, S.J.

“…High-temperature stable high-reflectivity gratings are fabricated in hydrogen-loaded single-mode fiber (SMF-28) using ultrafast 800-nm radiation. An index…”
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Multiparameter Sensor Based on Single High-Order Fiber Bragg Grating Made With IR-Femtosecond Radiation in Single-Mode Fibers by Grobnic, D., Mihailov, S.J., Smelser, C.W., Walker, R.B.

“…Narrowband multiple high-order Bragg resonances from a single Bragg grating structure inscribed using a femtosecond IR laser and a 4.28 mum pitched phase mask…”
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Bragg grating evanescent field sensor made in biconical tapered fiber with femtosecond IR radiation by Grobnic, D., Mihailov, S.J., Huimin Ding, Smelser, C.W.

“…Retro-reflective Bragg gratings were made with a phase mask and femtosecond radiation from a Ti : sapphire infrared laser into the core and cladding region of…”
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Femtosecond laser fabrication of Bragg gratings in borosilicate ion-exchange waveguides by Grobnic, D., Mihailov, S.J., Smelser, C.W., Becker, M., Rothhardt, M.W.

“…Ultrafast 800-nm radiation from a Ti : sapphire amplifier was used to write high reflectivity Bragg gratings in silver ion-exchange waveguides made in a…”
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Formation of Type I-IR and Type II-IR gratings with an ultrafast IR laser and a phase mask by Smelser, Christopher, Mihailov, Stephen, Grobnic, Dan

“…The formation of two grating types in SMF-28 fiber by focusing 125 fs, 0.5-2 mJ pulses through a phase mask onto a fiber sample is studied. The first type,…”
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Femtosecond laser induced optical fiber Bragg gratings (FBGs) for harsh environment sensing applications by Mihailov, S. J., Grobnic, D., Walker, R. B., Lu, P., Ding, H.

“…FBGs made with femtosecond lasers have shown promise for sensing in extreme environments like high temperature, pressure or ionizing radiation. This…”
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Bragg gratings written in All-SiO2 and Ge-doped core fibers with 800-nm femtosecond radiation and a phase mask by MIHAILOV, Stephen J, SMELSER, Christopher W, GROBNIC, Dan, WALKER, Robert B, PING LU, HUIMIN DING, UNRUH, James

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Development of Highly Radiation Resistant Fiber Bragg Gratings by Henschel, H., Grobnic, D., Hoeffgen, S. K., Kuhnhenn, J., Mihailov, S. J., Weinand, U.

“…Fiber Bragg gratings with a radiation-induced wavelength shift of <;5 pm up to gamma doses of 1 MGy were written with a femtosecond IR laser into Ge-free…”
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High-Reflectivity Thermally Stable Ultrafast Induced Fiber Bragg Gratings in H 2 -Loaded SMF-28 Fiber by Smelser, C W, Grobnic, D, Mihailov, S J

“…High-temperature stable high-reflectivity gratings are fabricated in hydrogen-loaded single-mode fiber (SMF-28) using ultrafast 800-nm radiation. An index…”
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Comparison of the Radiation Sensitivity of Fiber Bragg Gratings Made by Four Different Manufacturers by Hoeffgen, S K, Henschel, H, Kuhnhenn, J, Weinand, U, Caucheteur, C, Grobnic, D, Mihailov, S J

“…The radiation sensitivity of type I FBGs written by four different manufacturers with different UV or IR lasers in two different Ge-doped H 2 loaded and…”
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