Patent ID: 6328484
Filing Date: 2001-12-11
Classification: G02B

Abstract:
An arrangement for coupling optical fibers to optical devices comprising:a clear optical member having first and second substantially perpendicular surfaces and having transmit and receive light propagation paths extending between said first and second surfaces, each of said light propagation paths having at least three segments, said optical member including:(a) a first pair of input/output (I/O) ports at said first surface, said first pair being configured for optical coupling to said optical fibers;(b) a first pair of mirrors positioned with respect to said first pair of I/O ports for exchanging optical signals along first segments of said light propagation paths;(c) a second pair of mirrors positioned with respect to said first pair of mirrors for exchanging said optical signals along second segments of said light propagation paths; and(d) a second pair of I/O ports positioned with respect to said second pair of mirrors for exchanging said optical signals along third segments of light propagation paths, said second pair of I/O ports being located on said second surface and having a port-to-port spacing that is greater than a port-to-port spacing of said first pair of I/O ports.