G - Physics – 02 – F
Patent
G - Physics
02
F
G02F 1/21 (2006.01) G02B 6/34 (2006.01) G02F 1/225 (2006.01) H01S 3/13 (2006.01) H01S 3/106 (2006.01) H01S 5/0625 (2006.01) H01S 5/10 (2006.01)
Patent
CA 2101412
An interferometric tunable optical filter selects a predetermined wavelength or wavelengths from a wavelength division multiplexed signal. The optical filter splits an input signal into a plurality of waveguide branches. In each branch, the amplitude and phase of the signal can be individually controlled. The signals are then recombined. The resulting interference gives a wavelength dependent transmission spectrum that can be adjusted as desired.
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson
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