Title :
Broadband reflection method to measure waveguide loss
Author :
Byrne, D.C. ; Guo, W.H. ; Lu, Q.Y. ; Donegan, J.F.
Author_Institution :
Sch. of Phys., Trinity Coll., Dublin
Abstract :
Below bandgap light from a broadband source is injected into a laser and the reflection spectrum is recorded with an optical spectrum analyser. The optical waveguide loss is determined based on a Fourier series expansion. The finite resolution bandwidth of the optical spectrum analyser can be accounted for by use of a deconvolution process.
Keywords :
Fourier series; deconvolution; light reflection; optical waveguides; spectral analysers; Fourier series expansion; bandgap light; broadband reflection; deconvolution; optical spectrum analyser; reflection spectrum; waveguide loss;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.3292
