Termination interface structure and method for joining an optica

Details Termination interface structure and method for joining an optica Termination interface structure and method for joining an optica

1989-07-10

1990-10-16

Lee, John D.

350 9621, 350320, G02B 632

Patent

active

049629883

ABSTRACT:
In order to make possible the provision of a good fusion joint with low losses between an optical fiber and a graded index (GRIN) glass rod lens with considerably larger diameter, the end of the GRIN lens to which the optical fiber is to be joined is tapered down radially the extent of at least one third the radius of the cylindrical lens at an angle approximately 45.degree.. It is then possible to make a mechanically good fused joint with low transmission losses in the mid portion of the reduced-diameter end of the lens by heating the butt joint with an electric arc. The taper may be frusto-conical, convex or concave.

REFERENCES:
patent: 3801181 (1974-04-01), Kitano et al.
patent: 4268112 (1981-05-01), Peterson
patent: 4290667 (1981-09-01), Chown
patent: 4490020 (1984-12-01), Sakaguchi et al.
patent: 4575194 (1986-03-01), Streifer et al.
patent: 4701011 (1987-10-01), Emkey et al.

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