Apparatus for switching optical signals

Details Apparatus for switching optical signals Apparatus for switching optical signals

2006-03-21

2006-03-21

Palmer, Phan T. H. (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S016000, C385S024000, C398S142000, C398S153000

Reexamination Certificate

active

07016564

ABSTRACT:
An apparatus for switching optical signals, comprising a first group of port cards adapted to receive input optical signals to be switched by the apparatus and a second group of port cards adapted to provide switched optical signals to an entity external to the apparatus. Each of the port cards in the first group includes a plurality of optical transmitter elements operative to produce respective optical beams from the input optical signals, as well as a transmit beam steering element array operative to orient the optical beams into respective transmit directions. Each of the port cards in the second group includes a plurality of optical receive elements operative to detect the presence of respective optical beams received from the port cards in the first group and produce respective ones of the switched optical signals therefrom. Application of beam steering at the port cards in the first group permits the apparatus to be more compact and allows for greater manufacturing tolerances.

REFERENCES:
patent: 6947623 (2005-09-01), Ramaswami et al.

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