G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 26/08 (2006.01) G02B 6/32 (2006.01) H04Q 3/52 (2006.01) G02B 6/38 (2006.01)
Patent
CA 2385216
An important consideration in making a fiber optic device (e.g., comprising fiber in a polished tube at a certain angle and GRIN lens) is to limit sense, maintain and/or measure the gap-width between these two polished surfaces before they are either fused or glued for optimum performance. In automating the configuration, the gap is sensed, apart from optimizing in the transverse plane to minimize the loss. In the present application, a limit sensing method and system is provided to improve the effectiveness in automated manufacturing systems, by exploiting the electromechanical properties of induced EMF (Electro-Magnetic Force) by an electrical coil in presence of a magnet at mechanical resonance. Once it is known when two optical surfaces to be glued are said to have zero gap (i.e., contact between the surfaces), the present system provides an annunciation from limit-sensing electronics. Afterwards, it is easier to back-off (separate the surfaces) up to maintain a gap using a micrometer, manually or by a stepper motor longitudinally.
Ivancevic Dusan
Ramakrishnan Srikanth
Stoev Krassimir
Jds Uniphase Inc.
Teitelbaum & Maclean
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