Adaptive coupling approach for single mode VCSELs with polymer waveguides

Bosman, Erwin; Elmogi, Ahmed; Wiegersma, Sjoukje; Berg, Hugo van den; Ortsiefer, M.; Daly, Aidan; Duis, Jeroen; Steenberge, Geert Van

doi:10.1109/ipcon.2014.6995201

Cited by 1 publication

(3 citation statements)

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“…In this paper, we focus on the implementation of an integrated 90° bent coupling mirror, which can be fabricated by imprinting into the polymer waveguide layer. In particular we demonstrate a concept where the coupling mirror is used with VCSELs embedded under the waveguide layer [9], [10] and we present a fabrication method which enables very high precision alignment of the mirror to the VCSEL and waveguide.…”

Section: The Polymer Photonic Technology Platformmentioning

confidence: 99%

“…In the mirror fabrication experiments, samples having waveguides fabricated by two alternative methods were used: Part of the samples had waveguides made of EpoCore/Clad material (by Micro Resist Technology GmbH) and patterned by the laser direct imaging method [10] . The other samples had waveguides made of OrmoCore/Clad materials and patterned by imprinting method described in Figure 1.…”

Section: Embedding Of Vcsels and Waveguide Fabricationmentioning

confidence: 99%

“…Left) Structure of the samples used in the mirror coupler experiments. [10] VCSEL is embedded under the waveguide stack. Also the location of the mirror element illustrated.…”

Section: Embedding Of Vcsels and Waveguide Fabricationmentioning

confidence: 99%

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Optical coupling structure made by imprinting between single-mode polymer waveguide and embedded VCSEL

et al. 2015

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Polymer-based integrated optics is attractive for inter-chip optical interconnection applications, for instance, for coupling photonic devices to fibers in high density packaging. In such a hybrid integration scheme, a key challenge is to achieve efficient optical coupling between the photonic chips and waveguides. With the single-mode polymer waveguides, the alignment tolerances become especially critical as compared to the typical accuracies of the patterning processes. We study novel techniques for such coupling requirements. In this paper, we present a waveguide-embedded micro-mirror structure, which can be aligned with high precision, even active alignment method is possible. The structure enables 90 degree bend coupling between a single-mode waveguide and a vertical-emitting/detecting chip, such as, a VCSEL or photodiode, which is embedded under the waveguide layer. Both the mirror structure and low-loss polymer waveguides are fabricated in a process based mainly on the direct-pattern UV nanoimprinting technology and on the use of UVcurable polymeric materials. Fabrication results of the coupling structure with waveguides are presented, and the critical alignment tolerances and manufacturability issues are discussed.

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Section: The Polymer Photonic Technology Platformmentioning

confidence: 99%

Section: Embedding Of Vcsels and Waveguide Fabricationmentioning

confidence: 99%