Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Jonathan Schrauwen"'
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 15:1427-1431
We demonstrate an omnidirectional, retroreflective optical marker in silicon on insulator that enables simultaneous identification and localization of objects. The most important chip requirement - its retroreflectivity - is realized by a large numbe
Publikováno v:
IEEE PHOTONICS TECHNOLOGY LETTERS
We have designed and fabricated an efficient grating coupler for coupling light between optical fibers and silicon-on-insulator waveguides. The coupler consists of 88-nm-wide slits, etched at an angle of 58deg to the surface normal. They are defined
Publikováno v:
SPIE Proceedings.
We present the design and fabrication of a refractive polymer wedge that allows perfectly vertical coupling of light into a silicon waveguide, which is of interest for flip-chip bonding of vertical cavity emitting light sources on a silicon integrate
Autor:
Shankar Kumar Selvaraja, Stijn Scheerlinck, Jonathan Schrauwen, Gunther Roelkens, Diedrik Vermeulen, Tom Claes, Dirk Taillaert, D. Van Thourhout, Pieter Dumon, Roel Baets, F. Van Laere, Wim Bogaerts
Publikováno v:
SPIE Proceedings.
The interfacing of an optical fiber and a photonic integrated circuit becomes more complex on a high refractive index contrast waveguide platform due to the large mismatch in mode size between the optical fiber mode and the waveguide modes in the int
Autor:
Peter Bienstman, J. Van Lysebettens, Jonathan Schrauwen, K. De Vos, Roel Baets, D. Van Thourhout, Tom Claes
Publikováno v:
IEEE Photonics Technology Letters.
We present the focused-ion-beam fabrication of slots in existing silicon waveguides and racetrack resonators. The etch process was conducted with iodine enhancement and an alumina hard mask. We demonstrate a propagation loss of 100 dB/cm for slot wav
Publikováno v:
Applied optics. 47(18)
Vertical coupling between silicon-on-insulator waveguides and optical fibers is achieved using adapted fibers with an angled facet. The proposed coupling scheme is demonstrated for waveguides containing uniform one-dimensional grating couplers. A cou
Autor:
Thomas F. Krauss, F. Van Laere, Dirk Taillaert, M. Ayre, Jonathan Schrauwen, Roel Baets, D. Van Thourhout, Gunther Roelkens
Publikováno v:
JOURNAL OF LIGHTWAVE TECHNOLOGY
We present high-efficiency grating couplers for coupling between a single-mode fiber and nanophotonic waveguides, fabricated both in silicon-on-insulator (SOI) and InP membranes using BenzoCycloButene wafer bonding. The coupling efficiency is substan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e25868237854623b9c47b5d32788bbd5
https://biblio.ugent.be/publication/388982/file/584763
https://biblio.ugent.be/publication/388982/file/584763
Publikováno v:
Proceedings of OSA Topical Meetings : Integrated Photonics and Nanophotonics and Applications (IPNRA 2007)
High efficiency fiber-to-waveguide grating couplers were designed in SOI waveguide structures. 66% coupling efficiency can be obtained with a 3dB bandwidth of 85nm. Prototype fabrication reveals 2dB coupling efficiency improvement over standard grati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf81f1b4053c8344024d309fc77f1037
https://hdl.handle.net/1854/LU-392662
https://hdl.handle.net/1854/LU-392662
Autor:
Roel Baets, Wim Bogaerts, Pieter Dumon, Joost Brouckaert, Jonathan Schrauwen, Dries Van Thourhout
Publikováno v:
2006 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2
We present measurement results of a 4-channel silicon-on-insulator grating demultiplexer fabricated in a CMOS line. It has an ultra-small footprint of 280times150 mum2, 20 nm channel spacing, on-chip loss of 7.5 dB and crosstalk of better than -30 dB
Publikováno v:
APPLIED PHYSICS LETTERS
We fabricated grating couplers in silicon-on-insulator waveguides with focused-ion-beam. First devices were very lossy, but by using selective etchant and a hard mask we obtained efficiencies comparable to traditional fabrication techniques