Difference between revisions of "Passive Optical Components and Filtering Technologies"
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| − | OSC - optical supervisory channel. We do not prefer a non-linear frequency dependence of phase response in a WDM system architecture. The advantage of an all pole system is if we know the magnitude response we can uniquely identify its | + | OSC - optical supervisory channel. We do not prefer a non-linear frequency dependence of phase response in a WDM system architecture. The advantage of an all pole system is if we know the magnitude response we can uniquely identify its phase response. IIR systems have dispersion and non-linear phase response. In an FIR one can get a dispersion free filter (by adding positive and negative(of what?)). Think of an optical isolator as an equivalent to a by-pass capacitor in electrical circuits. Gradient Index (GRIN) lenses - 0.3 dB reflection loss, 0.3-1.5 dB insertion loss. |
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| + | [[Media:filters.pdf]] | ||
Latest revision as of 20:14, 20 April 2010
Christi Madsen
OSC - optical supervisory channel. We do not prefer a non-linear frequency dependence of phase response in a WDM system architecture. The advantage of an all pole system is if we know the magnitude response we can uniquely identify its phase response. IIR systems have dispersion and non-linear phase response. In an FIR one can get a dispersion free filter (by adding positive and negative(of what?)). Think of an optical isolator as an equivalent to a by-pass capacitor in electrical circuits. Gradient Index (GRIN) lenses - 0.3 dB reflection loss, 0.3-1.5 dB insertion loss.
