The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.
Subwavelength waveguide grating for mode conversion and light coupling in integrated optics
Open accessAbstract
We propose a new method for mode conversion and coupling between an optical fiber and a sub-micrometer waveguide using a subwavelength grating (SWG) with a period less than the 1st order Bragg period. The coupler principle is based on gradual modification of the waveguide mode effective index by the SWG effect that at the same time frustrates diffraction and minimizes reflection loss. We demonstrate the proposed principle by two-dimensional Finite Difference Time Domain (FDTD) calculations of various SWG structures designed for the silicon-on-insulator (SOI) platform with a Si core thickness of 0.3 microm. We found a coupling loss as small as 0.9 dB for a 50 microm-long SWG device and low excess loss due to fiber misalignment, namely 0.07 dB for a transverse misalignment of +/-1 microm, and 0.24 dB for an angular misalignment of +/-2 degrees. Scaling of the SWG coupler length down to 10 microm is also reported on an example of a 2D slab waveguide coupling structure including aspect ratio dependent etching and micro-loading effects. Finally, advantages of the proposed coupling principle for fabricating 3D coupling structures are discussed.
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Cites
A high-speed silicon optical modulator based on a metal–oxide–semiconductor capacitor
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All-optical control of light on a silicon chip
Almeida, V. R., Barrios, C. A., Panepucci, R. R., & Lipson, M. (2004) · Nature · doi:10.1038/nature02921 · Cited by 1,517
Subwavelength-diameter silica wires for low-loss optical wave guiding
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Active control of slow light on a chip with photonic crystal waveguides
Vlasov, Y. A., O'Boyle, M., Hamann, H. F., & McNab, S. J. (2005) · Nature · doi:10.1038/nature04210 · Cited by 1,314
Nanotaper for compact mode conversion
Almeida, V. R., Panepucci, R. R., & Lipson, M. (2003) · Optics Letters · doi:10.1364/ol.28.001302 · Cited by 866
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Demonstration of a silicon Raman laser
Boyraz, O., & Jalali, B. (2004) · Optics Express · doi:10.1364/opex.12.005269 · Cited by 777
Soref, R. A. (1993) · Proceedings of the IEEE · doi:10.1109/5.248958 · Cited by 720
Strained silicon as a new electro-optic material
Jacobsen, R. S., Andersen, K. N., Borel, P. I., Fage-Pedersen, J., Frandsen, L. H., Hansen, O., Kristensen, M., Lavrinenko, A. V., Moulin, G., Ou, H., et al. (2006) · Nature · doi:10.1038/nature04706 · Cited by 664
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Cited by
Waveguide sub‐wavelength structures: a review of principles and applications
Halir, R., Bock, P. J., Cheben, P., Ortega‐Moñux, A., Alonso‐Ramos, C., Schmid, J. H., Lapointe, J., Xu, D., Wangüemert‐Pérez, J. G., Molina‐Fernández, Í., et al. (2015) · Laser & Photonics Reviews · doi:10.1002/lpor.201400083 · Cited by 658
Self-citationCoupling strategies for silicon photonics integrated chips [Invited]
Marchetti, R., Lacava, C., Carroll, L., Gradkowski, K., & Minzioni, P. (2019) · Photonics Research · doi:10.1364/prj.7.000201 · Cited by 635
Bock, P. J., Cheben, P., Schmid, J. H., Lapointe, J., Delâge, A., Janz, S., Aers, G. C., Xu, D.-X., Densmore, A., & Hall, T. J. (2010) · Optics Express · doi:10.1364/oe.18.020251 · Cited by 314
Self-citationGrating Couplers on Silicon Photonics: Design Principles, Emerging Trends and Practical Issues
Cheng, L., Mao, S., Li, Z., Han, Y., & Fu, H. (2020) · Micromachines · doi:10.3390/mi11070666 · Cited by 299
Cheben, P., Bock, P. J., Schmid, J. H., Lapointe, J., Janz, S., Xu, D.-X., Densmore, A., Delâge, A., Lamontagne, B., & Hall, T. J. (2010) · Optics Letters · doi:10.1364/ol.35.002526 · Cited by 298
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Metadata
- Authors
- Cheben, P., Xu, D.-X., Janz, S., & Densmore, A.
- Venue
- Optics Express
- Publisher
- Optica Publishing Group
- Published
- 2006
- Volume
- 14
- Issue
- 11
- Pages
- 4695
- ISSN
- 1094-4087 (ISSN-L)
- OpenAlex
- W2091026523
- Cited by
- 279
- References
- 19
- FWCI
- 6.41
- Type
- journal article
- Language
- en
- Open access
- gold
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