&lt;title&gt;Polymeric waveguides for optical backplanes&lt;/title&gt;

Shacklette, L. W.; Stengel, Kelly M. T.; Eldada, Louay A.; Xu, Chengzeng; Yardley, James T.

doi:10.1117/12.210076

Cited by 9 publications

(4 citation statements)

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“…For short distances (<im), the costs for the termination of optical lines are dominant, requiring new approaches to obtain efficient and low-cost optical interconnects. For the realization of an optical backplane, three major approaches can be distinguished: 1) free space optical interconnects (including free space propagation within a backplane)'7, 2) routed fibers8'°, 3) integrated waveguides' [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Each of these concepts is facing characteristic technical problems. For a waveguide-based solution --which would lead to a compact, rugged and potential low cost realization of an optical backplane -these problems are mainly too high attenuation and insufficient waveguide lengths (19"/5Ocm is required).…”

Section: Introductionmentioning

confidence: 99%

<title>Optical backplanes utilizing multimode polymer waveguides</title>

et al. 2000

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Optical links are expected to overcome the limitations imposed by electrical links even for short transmission distances as they have done in telecommunications trunk networks. For board-to-board and board-to-multiboard communication we have developed an optical backplane for applications in mobile systems. Compared to fiber based realizations it is compact, rugged and has the potential to be fabricated at low cost. The main features of the optical backplane in planar technology are free space expanded beam transmission between boards and backplane and guided wave transmission within the backplane. No optical connectors are required. Due to the expanded beams and highly multimode waveguides large coupling tolerances of several 100 tm are achieved. Low loss polymer backplane waveguides (3dB/rn) allow transmission lengths of more than 19". Demonstrators for board-to-board interconnections and star networks have been realized. Transmission experiments at lGBitJs have been successfully performed. Environmental tests prove the thermal stability ofthe polymer waveguides.

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Section: Introductionmentioning

confidence: 99%

<title>Optical backplanes utilizing multimode polymer waveguides</title>

et al. 2000

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“…Optical interconnection has been thought to be one of the better alternatives for solving these problems in the electrical interconnects [3]- [5]. At the level of computer-to-computer interconnects, i.e., several meters or more, optical means have already been implemented in order to improve connection speed.…”

Section: Introductionmentioning

confidence: 99%

An 8-Gb/s optical backplane bus based on microchannel interconnects: design, fabrication, and performance measurements

Kim¹,

Han²,

Chen³

2000

J. Lightwave Technol.

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We describe the characteristics of a microchannelbased optical backplane including signal-to-noise ratio (SNR), interconnect distances, and data transfer rates. The backplane employs 250 m-spacing two-dimensional (2-D) vertical cavity surface emitting lasers (VCSELs) and a microlens array to implement 500 m-, 750 m-, and 1-mm optical beam arrays. By integrating the transmitter and a multiplexed polymeric hologram as a deflector/beam-splitter for the guided-wave optical backplane, the result demonstrates a multibus line architecture and its high-speed characteristics. Maximum interconnect distances of 6 cm and 14 cm can be achieved to satisfy 10 12 bit error rate (BER) using 2 2 beams of 500 m-and 1 mm-spacing array devices. The total data transfer rate of the developed backplane has shown 8 Gb/s from eye diagram measurements.

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“…In the past few years, several optical bus architectures based on the optical backplane concept have been proposed. These architectures include waveguide bus systems, 1 substrate-mode guided-wave bus systems implemented with waveguiding plates and holographic coupling elements, 2,3 and free-space bus systems implemented through free-space optical interconnects. 4 Although optoelectronics is increasingly attractive for backplane applications, difficulties associated with optoelectronic systems, such as misalignment and losses due to transition between optical and electrical signals, have limited the popularity of optics for interconnection.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensionally interconnected multi-bus-line bidirectional optical backplane

Kim

Chen

1999

Opt. Eng

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The concept of a three-dimensionally interconnected optical backplane for a high-performance system containing multichip module boards, operating at 850 nm, is introduced. The backplane reported here employs 2-D vertical-cavity surface-emitting lasers (VCSELs) and photodetector arrays as transceivers. By integrating 250-m-pitch 2-D VC-SELs, microlenses, and photodetector arrays into our backplane design, we have demonstrated a multi-bus-line optical backplane and experimentally realized this architecture with 2-D VCSEL and detector arrays while using the third dimension as the signal-propagating direction. Such an approach greatly increases the aggregate bandwidth of the backplane. Packaging issues such as misalignment, cross talk, and signal-tonoise ratio are studied. Eye diagrams up to 1.5 GHz were obtained with clear eyes, and the frequency response of a single bus line shows a bandwidth of 2.5 THz.

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<title>Polymeric waveguides for optical backplanes</title>

Cited by 9 publications

References 0 publications

<title>Optical backplanes utilizing multimode polymer waveguides</title>

<title>Optical backplanes utilizing multimode polymer waveguides</title>

An 8-Gb/s optical backplane bus based on microchannel interconnects: design, fabrication, and performance measurements

Three-dimensionally interconnected multi-bus-line bidirectional optical backplane

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