Patent
1980-03-03
1981-12-22
Lee, John D.
350320, G02B 5172
Patent
active
043067654
ABSTRACT:
A branch component and method of making the component which can be used either to distribute light from a single waveguide into four outgoing waveguides or to collect light from four incoming waveguides into a single outgoing waveguide. The component includes seven waveguides and at least three partially transmissive reflective layers disposed on the surface of a carrier with the first, second and third waveguides being arranged in a longitudinally extending first series, the fourth and fifth waveguides being arranged in a longitudinally extending second series extending perpendicular to the first series and a first reflective layer separating the first and fourth waveguides from the second waveguide, a second reflective layer separating the second and a sixth waveguide from a third waveguide and a third reflective layer separating the fourth and seventh waveguides from the fifth waveguide and the second and third reflective layer lying on a plane which extends perpendicular to a plane formed by the first reflective layer.
REFERENCES:
patent: 4130345 (1978-12-01), Doellner
patent: 4176908 (1979-12-01), Wagner
Bloem et al, "Fiber-Optic Coupler," IBM Tech. Discl. Bull., vol. 16, No. 1, Jun. 1973, pp. 146-147.
Kendall, "On Etching very Narrow Grooves in Silicon," Appl. Phys. Lett., vol. 26, No. 4, Feb. 1975, pp. 195-198.
Mahlein Hans F.
Reichelt Achim
Winzer Gerhard
Lee John D.
Siemens Aktiengesellschaft
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