The 3-dimensional interconnection of waveguides in the planar lightwave circuits (PLCs) is demonstrated for the first time. By writing 3-dimensional waveguides that cross other waveguides, the femtosecond laser successfully interconnects PLC waveguides with low loss.
© 2005 Optical Society of America
Y. Nasu, M. Kohtoku, Y. Hibino, and Y. Inoue, " Three-Dimensional Waveguide Interconnection Formed with Femtosecond Laser in Planar Lightwave Circuits," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper OThV1.
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