Title :
Polariser based on a PbSe-clad optical waveguide in the infrared wavelength: the role of a buffer layer
Author :
Chakravarty, G.R. ; Priye, V. ; Pal, B.P. ; Thyagarajan, K.
Author_Institution :
Dept. of Phys., Indian Inst. of Technol., New Delhi, India
fDate :
8/1/1998 12:00:00 AM
Abstract :
The role of a dielectric buffer in the polarisation selectivity of a PbSe (cladding)/BaF2/CaF2 waveguide having transmission passband in the infrared wavelength of 3.4 μm is investigated. Results indicate that the presence of a buffer layer can greatly enhance the polarisation extinction ratio in such semiconductor-clad waveguides, enabling their use as a polarisation selector
Keywords :
barium compounds; calcium compounds; claddings; integrated optics; lead compounds; optical polarisers; optical waveguides; 3.4 mum; PbSe-BaF2-CaF2; PbSe-clad optical waveguide; PbSe/BaF2/CaF2 waveguide; buffer layer; dielectric buffer; infrared wavelength; polarisation extinction ratio; polarisation selectivity; polarisation selector; semiconductor-clad waveguides; transmission passband;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19982143
