Design of Transmission Lines for 4-Channel × 25-Gbps Optical Interconnect Module Based on Optical Flexible Printed Circuit

• Main Authors: Che-Hsuan Peng, 彭哲瑄
• Other Authors: Mount-Learn Wu
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/92564094448962900254

碩士 === 國立中央大學 === 光電科學與工程學系 === 105 === In this paper, the 4-channel  25-Gbps high-frequency transmission line is integrated into the flexible circuit board. This design is used as a high frequency transmission line between a receiver-side photodetector, a transimpedance amplifier (TIA) and a transmitter-side Vertical Cavity Surface Emitting Laser (VCSEL), and an integrated driver chip.And then the above elements and polymer waveguide and 45˚ reflective surface common integration in the flexible circuit board. This paper evaluates and analyzes high frequency transmission lines for use on flexible circuit boards, including the single-ended transmission line and differential transmission line of the return loss and insertion loss. The transmission lines are designed in the form of a coplanar waveguide. Through the high frequency simulation, the operating frequency of 0 ~ 62.5GHz The single-ended transmission line return loss of the transmitter and the receiver is less than -4 dB, the insertion loss is above -2.8 dB. On the other hand, in the operating frequency of 0 ~ 62.5 GHz, the differential transmission line return loss is less than -6 dB, insertion loss are more than -1.7 dB.