Title :
Evanescent-field coupling between two parallel long-period fiber gratings
Author :
Chiang, K.S. ; Ng, M.N. ; Liu, Yunqi ; Li, Shenping
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
We have demonstrated experimentally the phenomenon of evanescent-field coupling between two parallel long period fibre gratings (LPFGs). Significant light energy can be tapped from a single-mode fiber using this coupling mechanism. It could form the basis of various kinds of wavelength-dependent devices, such as add/drop multiplexers and couplers. Tunability could be achieved conveniently by control of the coupling efficiency through varying the grating separation band offset
Keywords :
diffraction gratings; multiplexing equipment; optical communication equipment; optical fibre couplers; add/drop multiplexers; coupling efficiency; evanescent-field coupling; fibre couplers; grating separation band offset; light energy; parallel long-period fiber gratings; single-mode fiber; wavelength-dependent devices; Bandwidth; Fiber gratings; Fixtures; Optical amplifiers; Optical coupling; Optical surface waves; Optimized production technology; Resonance; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.894114
