Title :
Low-crosstalk WDM by Bragg diffraction from thermally fixed reflection holograms in lithium niobate
Author :
Breer, S. ; Vogt, H. ; Nee, I. ; Buse, K.
Author_Institution :
Fachbereich Phys., Osnabruck Univ., Germany
fDate :
12/10/1998 12:00:00 AM
Abstract :
Dense wavelength-division-multiplexing (WDM) systems require narrowband wavelength filters for simultaneous multiplexing/demultiplexing of several channels. As a proof of concept the authors report the demultiplexing of two channels (channel spacing 0.8 nm) by Bragg diffraction from two thermally fixed volume phase reflection holograms in photorefractive lithium niobate crystals doped with iron. More than 25 dB crosstalk suppression is achieved, and intensity losses are only between 2.3 and 5.2 dB
Keywords :
demultiplexing; holography; light diffraction; lithium compounds; optical crosstalk; photorefractive materials; wavelength division multiplexing; 2.3 to 5.2 dB; Bragg diffraction; LiNbO3:Fe; crosstalk; demultiplexing; intensity loss; photorefractive lithium niobate crystal; thermally fixed volume phase reflection hologram; wavelength division multiplexing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981686
