Multifiber endoscope with fibers having different indices of ref

Details Multifiber endoscope with fibers having different indices of ref Multifiber endoscope with fibers having different indices of ref

1989-11-14

1991-12-24

Lee, John D.

Optical waveguides

Optical fiber bundle

Imaging

385126, G02B 606

Patent

active

050746421

ABSTRACT:
A multi-fiber for use in an endoscope having a plurality of fiber optic bundles. Each bundle comprises cores A, B, C and D, each core having a different index of refraction. The index difference between cores is at least 0.02 to produce mismatch in the propagation constants in the cores and to substantially reduce crosstalk among the cores.

REFERENCES:
patent: 3823996 (1974-07-01), Kompfner et al.
patent: 4436368 (1984-03-01), Keck
patent: 4515436 (1985-05-01), Howard et al.
patent: 4615583 (1986-10-01), Tsuno et al.
patent: 4647152 (1987-03-01), Jeskey
patent: 4730886 (1988-03-01), Hicks

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