Laser ablated coupling structures for optical printed circuit boards

Steenberge, Geert Van; Geerinck, Peter; Riester, Markus; Pongratz, S.; Daele, Peter Van

doi:10.1117/12.622890

Cited by 2 publications

(2 citation statements)

References 9 publications

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“…Alternatively, edge connectors can again be used for this purpose. To ease the coupling and to enhance the transmission characteristics micro lenses can be used that allow the focusing of the light [10,11,12]. Concepts have been shown that use 12-channel MT pins for achieving optical connections to waveguides.…”

Section: Waveguide Integration Conceptsmentioning

confidence: 98%

Integrated optical interconnections on printed circuit boards

2007

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The development of integrated optical interconnections (IOIs) represents a quantum leap for the functionality of printed circuit boards (PCBs). This new technology will allow highly complex product features and hence, higher product added value. PCBs with optical interconnections will be used where applications call either for very high data streams between components, modules or functional units (e.g. backplanes or multiprocessor boards) or for a space-saving design for interconnection paths (e.g. mobile applications).We discuss the different approaches towards integrating optical waveguides into PCBs and analyze the prerequisites for a transfer to a product. Application scenarios for different markets are presented and steps proposed for required action to deliver solutions that can be driven into a market.In a second section a new and innovative concept for the integration of an optical interconnection system in PCBs is presented. This revolutionary concept is highly supporting the worldwide trend towards miniaturization of not only electronic but also optoelectronic systems in PCBs. The alignment of the optoelectronic components to the waveguides has been addressed by this concept. It is shown that the process will allow the tolerances incurred in the manufacturing processes to be dealt with in a separate process step, allowing existing standard methods for the production of electronic interconnection systems to be used.

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Section: Waveguide Integration Conceptsmentioning

confidence: 98%

Integrated optical interconnections on printed circuit boards

2007

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“…Energy and pulse repetition rate (PRR) are two important process parameters highlighted by Steenberge et al [7,13,14] for the fabrication of waveguides in ORMOCER. It was observed that both parameters in uence the smoothness of side walls of guides, which remains crucial for the propagation loss.…”

Section: Introductionmentioning

confidence: 99%

Experiment and Prediction of Ablation Depth in Excimer Laser Micromachining of Optical Polymer Waveguides

Tamrin

Zakariyah

Hossain

et al. 2018

Advances in Materials Science and Engineering

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Extending the data transfer rates through dense interconnections at inter-and intraboard levels is a well-established technique especially in consumer electronics at the expense of more cross talk, electromagnetic interference (EMI), and power dissipation. Optical transmission using optical fibre is practically immune to the aforementioned factors. Among the manufacturing methods, UV laser ablation using an excimer laser has been repeatedly demonstrated as a suitable technique to fabricate multimode polymer waveguides. However, the main challenge is to precisely control and predict the topology of the waveguides without the need for extensive characterisation which is both time consuming and costly. In this paper, the authors present experimental results of investigation to relate the fluence, scanning speed, number of shots, and passes at varying pulse repetition rate with the depth of ablation of an acrylate-based photopolymer. e depth of ablation essentially affects total internal reflection and insertion loss, and these must be kept at minimum for a successful optical interconnection on printed circuit boards. e results are then used to predict depth of ablation for this material by means of adaptive neurofuzzy inference system (ANFIS) modelling. e predicted results, with a correlation of 0.9993, show good agreement with the experimental values. is finding will be useful in better predictions along with resource optimisation and ultimately helps in reducing cost of polymer waveguide fabrication.

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Laser ablated coupling structures for optical printed circuit boards

Cited by 2 publications

References 9 publications

Integrated optical interconnections on printed circuit boards

Integrated optical interconnections on printed circuit boards

Experiment and Prediction of Ablation Depth in Excimer Laser Micromachining of Optical Polymer Waveguides

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