This article presents the flip-chip bonding of vertical-cavity surface-emitting lasers (VCSELs) to silicon grating couplers (GCs) via SU8 prisms. The SU8 prisms are defined on top of the GCs using non-uniform laser ablation process. The prisms enable perfectly vertical coupling from the bonded VCSELs to the GCs. The VCSELs are flip-chip bonded on top of the silicon GCs employing the laser-induced forward transfer (LIFT)-assisted thermocompression technique. An excess loss of < 1 dB at 1.55 µm measured from the bonded assemblies is reported in this paper. The results of high speed transmission experiments performed on the bonded assemblies with clear eye openings up to 20 Gb/s are also presented.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.23.028264 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
In this research, a novel multidimensional prism with three distinct 45°, 135°, and 225° inclined optical surfaces were realized by using inclined exposure technology and SU-8 polymer. To obtain a smooth surface, the solvent loss percentage and temperature of post-exposure bake (PEB) are two key factors that need to be well controlled during fabrication. The experimental results showed that surface roughness can achieve 42.
View Article and Find Full Text PDFThis article presents the flip-chip bonding of vertical-cavity surface-emitting lasers (VCSELs) to silicon grating couplers (GCs) via SU8 prisms. The SU8 prisms are defined on top of the GCs using non-uniform laser ablation process. The prisms enable perfectly vertical coupling from the bonded VCSELs to the GCs.
View Article and Find Full Text PDFSome high-performance imaging systems, including wide angle "monocentric" lenses made of concentric spherical shells, form a deeply curved image surface coupled to focal plane sensors by optical fiber bundles with a curved input and flat output face. However, refraction at the angled input facet limits the range of input angles, even for fiber bundles with numerical aperture 1. Here we investigate using a curved beam deflector near the focal surface to increase the field of view and improve spatial resolution at the edges of the field of view.
View Article and Find Full Text PDFFabrication of three-dimensional nanostructured titania materials by prism holographic lithography and the sol-gel reaction.
Langmuir
August 2013
Advanced Functional Thin Films Department, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 641-831, Korea.
Article Synopsis
- The study introduces a straightforward method for creating high-quality titania inverted replicas of 3D holographic structures using a combination of holographic lithography and sol-gel chemistry.
- This method allows for uniform and fully open titania structures without requiring complicated post-processing techniques like ion etching or polishing.
- Results showed significant shrinkage during calcination (∼34%), but the optical strength of the structures improved, and it achieved a higher filling fraction (∼27%) compared to previous methods, with different crystallinity based on calcination temperature.
SU8 3D prisms with ultra small inclined angle for low-insertion-loss fiber/waveguide interconnection.
Opt Express
September 2011
Department of Engineering and System Science, National TsingHua University, Hsinchu, Taiwan.
This paper presents a simple method for fabricating SU8 three dimensional (3D) prisms with very small inclined-angles for optical-fiber/planar-waveguide interconnection with low insertion-loss by combining self-filling, molding and nano-lithography processes on plane surface. The prisms possess ultra low 3D inclined angle of 0.6° and a small surface roughness of 3.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!