National Repository of Grey Literature 36 records found  beginprevious27 - 36  jump to record: Search took 0.01 seconds. 
Výroba mřížek s dlouhou periodou v optických vláknech pomocí záření CO.sub.2./sub. laserového paprsku
Císařovský, P. ; Dunovský, J. ; Kolařík, L. ; Todorov, Filip ; Chomát, Miroslav ; Berková, Daniela ; Vrbová, M. ; Jančárek, A.
Inscription of the LPGs by a focused CO.sub.2./sub. laser beam in step-index fibers is reported. The transmission spectra of the LPGs fabricated in optical fibers drawn at 1880.sup.o./sup.C and 1930.sup.o./sup.C. under several inscription conditions are shown. The results indicate strong dependence of the LPG spectra on the conditions of the fiber drawing process and of the LPG fabrication. The first results of the preparation of a new type of a graded-index fiber for the LPG fabrication are reported too.
Optical fibers for chemical sensing
Matějec, Vlastimil ; Chomát, Miroslav ; Kašík, Ivan
The paper deals with performance of optical fibers for the development of chemical fibers. In its first part, there are physical basis shown are employed for the sensor design. Characteristics of particular types of fibers used in fiber-optic chemical sensors, namely polymer-clad silica /PCS/ fibers, sectorial fibers or fibers with special graded-index profiles are discussed in the next parts of the paper.
Measurement of chromatic dispersion and berifringence of microstructure optical fibers
Peterka, Pavel ; Dymák, Pavel ; Honzátko, Pavel ; Matějec, Vlastimil ; Kaňka, Jiří ; Martan, Tomáš ; Vraný, Boleslav ; Káčik, D. ; Lyytikainen, K.
Chromatic dispersion characterization of the microstructure optical fibres /MOF/ using the interferometric method is shown on several fibre samples. The differences from the measurement of standard single mode fibres are discussed.

National Repository of Grey Literature : 36 records found   beginprevious27 - 36  jump to record:
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