Prospects of a polymer-waveguide-based board-level optical interconnect technology

被引:5
作者
Dangel, R. [1 ]
Berger, C. [1 ]
Beyeler, R. [1 ]
Dellmann, L. [1 ]
Horst, F. [1 ]
Lamprecht, T. [1 ]
Meier, N. [1 ]
Offrein, B. J. [1 ]
机构
[1] IBM Corp, Zurich Res Lab, Res GmbH, CH-8803 Ruschlikon, Switzerland
来源
2007 IEEE WORKSHOP ON SIGNAL PROPAGATION ON INTERCONNECTS | 2007年
关键词
D O I
10.1109/SPI.2007.4512230
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In the long-distance telecom, local-area, and rack-to-rack link classes, optical interconnects have gradually replaced electrical interconnects. We believe that this trend will be continued in the short-distance card-backplane-card datacom link class. Convincing arguments for the predicted transition from electrical to optical interconnects are bandwidth*length advantages, density benefits [1-3], crosstalk reduction, and finally cost considerations. Based on this forecast, we currently develop a board-level optical interconnect technology facing several challenges, such as 1) the manufacturing of reliable polymer waveguides, II) the elaboration of simple light-coupling concepts, III) the development of high-speed electro-optical modules, and IV) the application of cost-efficient packaging approaches. The successful mastering of all these tasks is a prerequisite for convincing high-speed system designers and porting optical interconnect technology into future product development plans. In this paper, we will present different achievements of our optical interconnect technology, e.g.: - 10 Gb/s per channel over 1 m link length, - optical link propagation loss below 0.05 dB/cm at 850 nm, - linear link densities up to 16 channels/mm, - feasibility of 2D channel arrays (e.g. 4 x 12), - a fully passive, low-cost alignment concept with a position accuracy of <= 5 mu m, enabling coupling losses < 0.5 dB, and - electro-optical transmitter and receiver modules operating at 10 Gb/s per channel. Finally, we will report on the successful realization of a 12 x 10 Gb/s card-to-card optical link demonstrator.
引用
收藏
页码:131 / 134
页数:4
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