G - Physics – 02 – F
Patent
G - Physics
02
F
345/56, 88/97.4
G02F 1/13 (2006.01) H04Q 3/52 (2006.01)
Patent
CA 1298116
- 14 - ABSTRACT (ref. Fig 1) BIDIRECTIONAL OPTICAL SPACE SWITCH A bidirectional optical space switch for selectively coupling an input signal to a selected output comprises two arrays of inputs (19 8), two arrays of outputs (5, 9), polarising beam splitters (2, 4), and a matrix of cells (3) each of which is selectively capable of varying the polarisation state of light passing through it in response to an applied control signal. A first optical system (5) couples each of inputs (1) and a corresponding one of outputs (9) with a corresponding column of cells while a second optical system (7) couples each of inputs (8) and a corresponding one of outputs (5) with a corresponding row of cells. One of inputs (1) is switched to one of outputs (5) by activating the appropriate cell so that it rotates the polarisation of light passing through it by 90°. This also couples one of inputs 8 to one of outputs (9) thereby providing bidirectional switching. Use of combined beam splitters and polarisers (2, 4) provides bidirectionalily at substantially no loss of light additional to that lost on discrimination of the polarisation states.
557564
British Telecommunications Public Limited Company
G. Ronald Bell & Associates
Healey Peter
LandOfFree
Bidirectional optical space switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bidirectional optical space switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bidirectional optical space switch will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1217255