Method and arrangement for optical switching

Details Method and arrangement for optical switching Method and arrangement for optical switching

G - Physics

02

F

G02F 1/29 (2006.01) H04Q 11/00 (2006.01) H04Q 11/02 (2006.01)

Patent

CA 2096965

The present invention relates to an optical switch by means of which wavelength multiplexed optical signals (.lambda. i-.lambda. n) can be switched in an optically uninterrupted fashion through the switch. The switch is transparent to the bit rate and code format of the optical signals and comprises groups of a number (n) of tunable optical wavelength filters (39A1- 39An...39n1-39nN), preferably tunable laser amplifiers. Control means control the setting of the tunable wavelength filters as well as the settings of optical switching elements (45A-45N) so as to prevent two identical wavelengths from appearing simultaneously at the input and output links.

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