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Abstract
In this paper, we proposed 10 Gb/s transmission using 4-channel polymer waveguides on the optical electronic printed circuit board. It was simulated by the ray tracing method for tolerance study of optical interconnection and fabrication. In order for easy fabrication and high position accuracy, the polymer waveguides were forming silver coated 45° reflective mirrors by dicing method and e-beam deposition for 90° light beam turning. The coupling loss was demonstrated in different polishing grit sizes. The optical interconnection in board-embed 4-channel flexible waveguides was demonstrated with a low propagation loss of 0.1 dB/cm and a clear eye diagram at 2.5 Gb/s data rate per channel.
Highlights
The optical interconnection is a promising candidate to resolve the issues from the technical problems of electrical interconnections such as the upper limitation of transmission data speed, electric power consumption, crosstalk, and electromagnetic interference. [1,2]
We proposed 10 Gb/s transmission using 4-channel polymer waveguides on the optical electronic printed circuit board
The optical interconnection in board-embed 4-channel flexible waveguides was demonstrated with a low propagation loss of 0.1 dB/cm and a clear eye diagram at 2.5 Gb/s data rate per channel
Summary
The optical interconnection is a promising candidate to resolve the issues from the technical problems of electrical interconnections such as the upper limitation of transmission data speed, electric power consumption, crosstalk, and electromagnetic interference. [1,2]. The optical fibers have large advantage in long distance interconnection due to their low propagation loss, light weight, low cost, and immunity to electromagnetic interference. For in-device optical interconnection, the optical polymer waveguide transmission is better than fiber because of its easy fab- rication, productivity and enabling high density integra- tion in folded-type mobile device requirements. Some research combines flexible optical polymer waveguide and print circuit board (PCB) to realize flexible data transmission and optical electrical integration [3,4]. We have fabricated a flexible optical waveguide (FOW) typed electronic printed circuit board (EPCB), which is containing flexible optical waveguide and electrical PCB. The waveguide terminal was made as 45o mirrors for vertical light beam coupling using dicing processing. The optical loss due to unexpected fabrication process and waveguide terminal roughness issue was discussed
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