Apparatus to launch separated mode groups into optical fibers

Details Apparatus to launch separated mode groups into optical fibers Apparatus to launch separated mode groups into optical fibers

1987-05-05

1988-09-13

Sikes, William L.

Multiplex communications

Wide area network

Packet switching

350 9615, 350 9616, 350 9620, 350 9610, 370 1, 370 3, 455600, 455612, 455613, G02B 632, H04B 900, G02F 100

Patent

active

047704853

ABSTRACT:
An apparatus for launching separate mode groups comprising an LED (13) and a collimator (C.sub.1) for providing a first beam (19) of collimated light and an LED (15) and a collimator (C.sub.2) for providing a second beam (23) of collimated light. The beams (19) and (23) intersect and form an acute angle A. A light guide (R.sub.1) has a receiving face (27) at the intersection of the beams (19) and (23) so that the beams are launched into the light guide as first and second mode groups, respectively.

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