Research Output per year
Research Output per year
Personal profile
Research interests
Silicon photonics, integrated optics, photonic integrated circuits, optoelectronics, optical communication, optical phased arrays, LIDAR, optical beam steering, optical coherence tomography, optical gas sensing
Expertise area
Silicon photonics, integrated optics, photonic integrated circuits, optoelectronics, optical communication, optical phased arrays, LIDAR, optical beam steering, optical coherence tomography, optical gas sensing, project management, sales
Short bio
Dr. Timo Aalto has worked at VTT since 1997 with the primary research focus on silicon photonics. This makes him one of the pioneers in the field. He received his M.Sc. and D.Sc. degrees in optoelectronics technology from the Helsinki University of Technology in 1998 and 2004, respectively. He leads the Silicon photonics team that is the key user of VTT's clean room facility in Espoo (Micronova). He has >80 peer-reviewed journal and conference publications. He has reviewed EU projects, journal articles and theses, and written one book chapter. He has coordinated several large projects funded by EU, the European space agency, national funding organizations and industry.
Education/Academic qualification
Physical sciences, Doctorate, Helsinki University of Technology
29 Sep 1998 → 30 Dec 2004
Award Date: 30 Dec 2004
Skills and expertise
- silicon photonics
- integrated optics
- optical communication
- optical sensing
- project management
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Research Output
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Amorphous silicon waveguide escalator: Monolithic integration of active components on 3 μm SOI platform
Bera, A., Cherchi, M., Tappura, K., Heimala, P. & Aalto, T., 2020, Silicon Photonics XV. Reed, G. T. & Knights, A. P. (eds.). International Society for Optics and Photonics SPIE, 1128507. (Proceedings of SPIE, Vol. 11285).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Flat-top interleavers based on single MMIs
Cherchi, M., Sun, F., Kapulainen, M., Harjanne, M. & Aalto, T., 2020, Silicon Photonics XV. Reed, G. T. & Knights, A. P. (eds.). Bellingham: International Society for Optics and Photonics SPIE, 112850G. (Proceedings of SPIE, Vol. 11285).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Monolithic Ge integration on the 3 µm SOI platform for 40 GHz photodiodes
Aalto, T., Vehmas, T., Kapulainen, M., Heimala, P., Delrosso, G., Sun, F. & Gao, F., 2020, PRiME 2020: SiGe, Ge, and Related Compounds: Materials, Processing, and Devices 9. Liu, Q., Hartmann, J. M., Holt, J. R., Gong, X., Jain, V., Niu, G., Masini, G., Ogura, A., Miyazaki, S., Ostling, M., Bi, W., Schulze, A. & Mai, A. (eds.). Electrochemical Society ECS, p. 303-313 (ECS Transactions; No. 5, Vol. 98).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Monolithic integration of up to 40 GHz Ge photodetectors in 3μm SOI
Vehmas, T., Kapulainen, M., Heimala, P., Delrosso, G., Sun, F., Gao, F. & Aalto, T., 2020, Silicon Photonics XV. Reed, G. T. & Knights, A. P. (eds.). International Society for Optics and Photonics SPIE, 112850V. (Proceedings of SPIE, Vol. 11285).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Polymer interposer for efficient light coupling into 3 μm silicon-on-insulator waveguides
Hiltunen, M., Harjanne, M. T., Vehmas, T., Wälchli, B., Heimala, P. & Aalto, T., 1 Jan 2020, Optical Interconnects XX. Schröder, H. & Chen, R. T. (eds.). International Society for Optics and Photonics SPIE, 112860I. (Proceedings of SPIE, Vol. 11286).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review