Details
| Original language | English |
|---|---|
| Title of host publication | Optical Design and Engineering VII |
| Editors | Andrew P. Wood, Rolf Wartmann, Laurent Mazuray |
| Publisher | SPIE |
| Number of pages | 8 |
| ISBN (print) | 9781510619173 |
| Publication status | Published - 5 Jun 2018 |
| Event | Optical Design and Engineering VII 2018 - Frankfurt, Germany Duration: 14 May 2018 → 17 May 2018 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 10690 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
Straight and bent self-written waveguides (SWWs) are formed within a photomonomer mixture by means of a self-trapping effect when a single laser beam or two laser beams with tilt are propagated inside. These SWWs can be used as optical interconnects in integrated photonic circuits if two laser beams are launched in opposite directions into the photomonomer. In this work, two kinds of photo-polymerization models are implemented to simulate the SWWs. In the phenomenological model, the refractive index increases directly with actinic laser intensity, whereas the diffusion model has a more complex variation of refractive index profile which takes into account the individual redistribution of mixture components. Both these models are linked with a CrankNicholson based Beam Propagation Method (CN-BPM) to simulate the time varying light distribution within the polymer coupling structures. Differences are observed in the numerical simulation results for straight and bent SWWs with respect to the temporal evolution of refractive index within the mixture, corresponding beam intensity profiles and curing time. In addition, we show that a saturation of refractive index change leads to the polymerization of surrounding monomer and, as consequence, to corrupted light guiding. We report on the minimum refractive index modulation that is required for optimal light guiding within the SWW.
Keywords
- Polymer waveguides, Self-action effects of light, Self-trapping
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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Optical Design and Engineering VII. ed. / Andrew P. Wood; Rolf Wartmann; Laurent Mazuray. SPIE, 2018. 106900D (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10690).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Simulation of straight and bent self-written waveguides in photopolymer mixture using phenomenological and diffusion models
AU - Suar, Monali
AU - Rahlves, Maik
AU - Reithmeier, Eduard
AU - Roth, Bernhard
N1 - Funding information: This research work was supported by the VolkswagenStiftung within the ’Niedersächsisches Vorab’ program in the framework of the project Hybrid Numerical Optics (HYMNOS).
PY - 2018/6/5
Y1 - 2018/6/5
N2 - Straight and bent self-written waveguides (SWWs) are formed within a photomonomer mixture by means of a self-trapping effect when a single laser beam or two laser beams with tilt are propagated inside. These SWWs can be used as optical interconnects in integrated photonic circuits if two laser beams are launched in opposite directions into the photomonomer. In this work, two kinds of photo-polymerization models are implemented to simulate the SWWs. In the phenomenological model, the refractive index increases directly with actinic laser intensity, whereas the diffusion model has a more complex variation of refractive index profile which takes into account the individual redistribution of mixture components. Both these models are linked with a CrankNicholson based Beam Propagation Method (CN-BPM) to simulate the time varying light distribution within the polymer coupling structures. Differences are observed in the numerical simulation results for straight and bent SWWs with respect to the temporal evolution of refractive index within the mixture, corresponding beam intensity profiles and curing time. In addition, we show that a saturation of refractive index change leads to the polymerization of surrounding monomer and, as consequence, to corrupted light guiding. We report on the minimum refractive index modulation that is required for optimal light guiding within the SWW.
AB - Straight and bent self-written waveguides (SWWs) are formed within a photomonomer mixture by means of a self-trapping effect when a single laser beam or two laser beams with tilt are propagated inside. These SWWs can be used as optical interconnects in integrated photonic circuits if two laser beams are launched in opposite directions into the photomonomer. In this work, two kinds of photo-polymerization models are implemented to simulate the SWWs. In the phenomenological model, the refractive index increases directly with actinic laser intensity, whereas the diffusion model has a more complex variation of refractive index profile which takes into account the individual redistribution of mixture components. Both these models are linked with a CrankNicholson based Beam Propagation Method (CN-BPM) to simulate the time varying light distribution within the polymer coupling structures. Differences are observed in the numerical simulation results for straight and bent SWWs with respect to the temporal evolution of refractive index within the mixture, corresponding beam intensity profiles and curing time. In addition, we show that a saturation of refractive index change leads to the polymerization of surrounding monomer and, as consequence, to corrupted light guiding. We report on the minimum refractive index modulation that is required for optimal light guiding within the SWW.
KW - Polymer waveguides
KW - Self-action effects of light
KW - Self-trapping
UR - http://www.scopus.com/inward/record.url?scp=85052864495&partnerID=8YFLogxK
U2 - 10.1117/12.2312507
DO - 10.1117/12.2312507
M3 - Conference contribution
AN - SCOPUS:85052864495
SN - 9781510619173
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optical Design and Engineering VII
A2 - Wood, Andrew P.
A2 - Wartmann, Rolf
A2 - Mazuray, Laurent
PB - SPIE
T2 - Optical Design and Engineering VII 2018
Y2 - 14 May 2018 through 17 May 2018
ER -