G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/02 (2006.01) C03B 37/027 (2006.01) C03C 13/04 (2006.01) G02B 6/18 (1990.01) G02B 6/22 (1990.01)
Patent
CA 2092662
Abstract of the Disclosure An optical fiber for connection to waveguide type optical device has a core having a flat cross-section, a first clad which is formed along a greater diameter of the core and which has a refractive index smaller than that of the core, and a second clad which is formed outside of the core and the first clad and which has a refractive index smaller than that of the core and greater than that of the first clad, wherein a2?.DELTA.2 = b2?.DELTA.1, where a is the greater diameter of the core, b is the smaller diameter of the core, .DELTA.1 is the difference in specific refractive index between the core and the first clad, and .DELTA.2 is the difference in specific refrac- tive index between the core and the second clad.
Ono Takahiro
Yanagawa Hisaharu
Ridout & Maybee Llp
The Furukawa Electric Co. Ltd.
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