Optical coupler for optical fibres

Details Optical coupler for optical fibres Optical coupler for optical fibres

1978-07-18

1981-03-03

Levy, Stewart J.

350 9618, 350 9629, G02B 514

Patent

active

042537274

ABSTRACT:
Mode coupling using grating of ridges and furrows to curve the fibre along a zig-zag path are associated with an index matcher which surrounds the fibre. The average axis of the zig-zag fibre coincides that of the matcher. Light travels along lines all at the same angle to the axis of the matcher and pass through via a conical optical end surface thereof. The optical surface converts the said rays into a parallel beam for coupling with large aperture optical means such as a photo-cell or a LED.

REFERENCES:
patent: 3809455 (1974-05-01), Pekau et al.
patent: 4021099 (1977-05-01), Kawasaki et al.
patent: 4102579 (1978-07-01), Stewart
patent: 4135780 (1979-01-01), Dyott
patent: 4146298 (1979-03-01), Szczepanek

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