Title :
Surface plasmon-polariton fiber-optical polarizers using thin-nickel films
Author :
Zervas, Michael N.
Author_Institution :
Dept. of Electr. Eng., Univ. Coll. London, UK
fDate :
4/1/1990 12:00:00 AM
Abstract :
High-quality optical fiber polarizers fabricated by depositing thin nickel films on polished fibers are discussed. The polarization extinction is achieved by efficiently exciting TM-polarized surface plasmon-polariton waves, which are supported by the nickel films, by means of evanescent field interaction with the propagating fundamental fiber mode. TM-like polarized light is efficiently coupled and extinguished when precise phase matching conditions are achieved. The TE-like polarization, on the other hand, passes through with minimal losses. Devices with polarization extinction ratio in excess of 55 dB and insertion losses less than 1 dB have been demonstrated.<>
Keywords :
fibre optics; metallic thin films; nickel; optical losses; optical polarisers; polaritons; surface plasmons; 1 dB; Ni thin films; TE-like polarization; TM-like polarized light; TM-polarized surface plasmon-polariton waves; evanescent field interaction; fundamental fiber mode; insertion losses; phase matching; plasmon-polariton fiber-optical polarizers; polarization extinction; polarization extinction ratio; polished fibers; Nickel; Optical coupling; Optical fiber devices; Optical fiber polarization; Optical fibers; Optical films; Optical frequency conversion; Optical propagation; Optical surface waves; Surface waves;
Journal_Title :
Photonics Technology Letters, IEEE
