Search Results - "Rothhardt, M."

A miniature temperature high germanium doped PCF interferometer sensor by Favero, F C, Spittel, R, Just, F, Kobelke, J, Rothhardt, M, Bartelt, H

“…We report in this paper a high thermal sensitivity (78 pm/°C) modal interferometer using a very short Photonic Crystal Fiber stub with a shaped Germanium doped…”
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H2 Sensing Based on a Pd-Coated Tapered-FBG Fabricated by DUV Femtosecond Laser Technique by Silva, Susana, Coelho, L., Almeida, J. M., Frazao, O., Santos, J. L., Malcata, F. X., Becker, M., Rothhardt, M., Bartelt, H.

“…An optical fiber probe sensor based on a tapered-fiber Bragg grating (FBG) coated with 150-nm-thick Pd film is proposed for hydrogen detection. The FBG was…”
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Optical Inclinometer Based on a Phase-Shifted Bragg Grating in a Taper Configuration by Moura, Joao P., Silva, Susana O., Becker, Martin, Rothhardt, M., Bartelt, Hartmut, Santos, Jose Luis, Frazao, Orlando

“…A simple optical inclinometer based on a phase-shifted Bragg grating in a taper configuration is proposed. Two phase-shifted fiber Bragg gratings were…”
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Environmentally stable picosecond Yb fiber laser with low repetition rate by Baumgartl, M., Abreu-Afonso, J., Díez, A., Rothhardt, M., Limpert, J., Tünnermann, A.

“…A SESAM-mode-locked, all-polarization-maintaining Ytterbium fiber laser producing picosecond pulses with narrow spectral bandwidth is presented. A simple…”
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Generation and characterization of first order fiber Bragg gratings with Bragg wavelengths in the visible spectral range by Lindner, E., Becker, M., Rothhardt, M., Bartelt, H.

“…Using a combination of phase mask and interferometric inscription technique we have generated 1st order fiber Bragg gratings (FBGs) with resonance wavelengths…”
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Inscription of Fiber Bragg Grating Arrays in Pure Silica Suspended Core Fibers by Becker, M., Fernandes, L., Rothhardt, M., Bruckner, S., Schuster, K., Kobelke, J., Frazao, O., Bartelt, H., Marques, P.

“…Fiber Bragg grating (FBG) arrays in pure silica four-leaf-clover-shaped suspended core fibers were inscribed with two-beam interference and a deep UV…”
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Fiber Bragg Gratings in Germanium-Doped Highly Birefringent Microstructured Optical Fibers by Geernaert, T., Nasilowski, T., Chah, K., Szpulak, M., Olszewski, J., Statkiewicz, G., Wojcik, J., Poturaj, K., Urbanczyk, W., Becker, M., Rothhardt, M., Bartelt, H., Berghmans, F., Thienpont, H.

“…We present a dedicated fiber Bragg grating (FBG) inscription experiment to investigate the compatibility of a microstructured optical fiber (MOF) with…”
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Micro-structured fiber interferometer as sensitive temperature sensor by Favero, F. C., Becker, M., Spittel, R., Rothhardt, M., Kobelke, J., Bartelt, H.

“…We report on a fast and sensitive temperature sensor using a micro-structured or photonic crystal fiber interferometer with a high germanium doped fiber core…”
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Generation of flattop pump pulses for OPCPA by coherent pulse stacking with fiber Bragg gratings by Rothhardt, J, Hädrich, S, Gottschall, T, Limpert, J, Tünnermann, A, Rothhardt, M, Becker, M, Brückner, S, Bartelt, H

“…We present a simple and robust pulse shaping device based on coherent pulse stacking. The device is embedded in a polarisation maintaining step index fiber. An…”
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Investigating Transverse Loading Characteristics of Microstructured Fiber Bragg Gratings With an Active Fiber Depolarizer by Yiping Wang, Bartelt, H., Ecke, W., Schroeder, K., Willsch, R., Kobelke, J., Rothhardt, M., Latka, I., Brueckner, S.

“…In this letter, the transverse loading characteristics of Bragg gratings in microstructured optical fibers were investigated by use of an active fiber…”
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H 2 Sensing Based on a Pd-Coated Tapered-FBG Fabricated by DUV Femtosecond Laser Technique by Silva, Susana, Coelho, L., Almeida, J. M., Frazao, O., Santos, J. L., Malcata, F. X., Becker, M., Rothhardt, M., Bartelt, H.

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ORMOCER Coated Fiber-Optic Bragg Grating Sensors at Cryogenic Temperatures by Habisreuther, T., Hailemichael, E., Ecke, W., Latka, I., Schroder, K., Chojetzki, C., Schuster, K., Rothhardt, M., Willsch, R.

“…ORMOCER coated Fiber-Bragg-Gratings (FBGs) were investigated at cryogenic temperatures. Below the Bragg wavelength of uncoated FBG is nearly independent on…”
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Temperature and Strain Sensing With Femtosecond Laser Written Bragg Gratings in Defect and Nondefect Suspended-Silica-Core Fibers by Fernandes, L. A., Becker, M., Frazao, O., Schuster, K., Kobelke, J., Rothhardt, M., Bartelt, H., Santos, J. L., Marques, P. V. S.

“…The spectral behavior in the C-band of fiber Bragg gratings (FBGs) was analyzed as a function of temperature and strain. The FBGs were fabricated in pure…”
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Effect of optical fiber hydrogen loading on the inscription efficiency of chirped Bragg gratings by means of KrF excimer laser radiation by Varzhel, S.V., Rothhardt, M., Kulikov, A.V., Bartelt, H.

“…Subject of Research.We present comparative results of the chirped Bragg gratings inscription efficiency in optical fiber of domestic production with and…”
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Thermo-Optic Switching Effect Based on Fluid-Filled Photonic Crystal Fiber by Yiping Wang, Bartelt, H., Ecke, W., Moerl, K., Lehmann, H., Schroeder, K., Willsch, R., Kobelke, J., Rothhardt, M., Spittel, R., Liye Shan, Brueckner, S., Wei Jin, Xiaoling Tan, Long Jin

“…We report a thermo-optic switching effect with a high extinction ratio of 30 dB by means of filling a fluid into air holes of a solid-core photonic crystal…”
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Polymer-Filled Silica Fibers as a Step Towards Electro-Optically Tunable Fiber Devices by Balakrishnan, M., Spittel, R., Becker, M., Rothhardt, M., Schwuchow, A., Kobelke, J., Schuster, K., Bartelt, H.

“…Microstructured fibers offer the possibility of being filled with unconventional materials in order to influence the propagation properties in an optical fiber…”
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EFFECT OF OPTICAL FIBER HYDROGEN LOADING ON THE INSCRIPTION EFFICIENCY OF CHIRPED BRAGG GRATINGS BY MEANS OF KrF EXCIMER LASER RADIATION by Varzhel, S V, Rothhardt, M, Kulikov, A V, Hartmut, B

“…Subject of Research.We present comparative results of the chirped Bragg gratings inscription efficiency in optical fiber of domestic production with and…”
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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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Investigations on pressure sensors for medical applications based on fiber Bragg gratings by Voigt, S., Rothhardt, M., Becker, M., Mehner, J.

“…The concept of fiber-Bragg grating (FBG) arrays was investigated regarding its potential to serve as a new method to fabricate cost efficient and high…”
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Nanofiber Fabry-Perot microresonator for non-linear optics and cavity quantum electrodynamics by Wuttke, C, Becker, M, Brückner, S, Rothhardt, M, Rauschenbeutel, A

“…Optics Letters, Vol. 37, Issue 11, pp. 1949-1951 (2012) We experimentally realize a Fabry-Perot-type optical microresonator near the cesium D2 line wavelength…”
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