Title :
Return loss measurements of WDM filters with tunable coherent optical frequency-domain reflectometry
Author :
von der Weid, J.P. ; Passy, R. ; Forno, A.O. ; Huttner, B. ; Gisin, N.
Author_Institution :
Univ. Catolica de Rio de Janeiro, Brazil
Abstract :
Reflectivity measurements of wavelength-division multiplexed (WDM) filters were performed with polarization independent coherent optical frequency domain reflectometry (C-OFDR). The spectral resolution of 0.012 mn allowed to characterize side lobe spacing and reflectivity with 90-dB dynamic range. The off-channel reflectivity was also measured for estimating the interchannel crosstalk in WDM systems and the experimental results were fitted to a theoretical equation, extracting the physical parameters of the filter.
Keywords :
light coherence; optical communication equipment; optical crosstalk; optical filters; optical loss measurement; optical resolving power; reflectivity; reflectometry; sensitivity; wavelength division multiplexing; WDM filters; WDM systems; dB dynamic range; interchannel crosstalk; off-channel reflectivity; physical parameters; polarization independent coherent optical frequency domain reflectometry; reflectivity; reflectivity measurements; return loss measurements; side lobe spacing; spectral resolution; tunable coherent optical frequency-domain reflectometry; wavelength-division multiplexed; Frequency measurement; Loss measurement; Optical crosstalk; Optical filters; Optical losses; Performance evaluation; Reflectivity; Reflectometry; Wavelength division multiplexing; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
