Journal
OPTICS LETTERS
Volume 34, Issue 9, Pages 1477-1479Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.34.001477
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Funding
- European projects ePIXnet [IST-004525]
- European Cooperation in the field of Scientific and Technical Research (COST) [MP0702]
- Swiss National Centre of Competence in Research-Quantum Photonics
- Research Foundation-Flanders (FWO)
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Optical phased arrays are versatile components enabling rapid and precise beam steering. An integrated approach is followed in which a 1D optical phased array is fabricated on silicon-on-insulator. The optical phased array consists of 16 parallel grating couplers spaced 2 mu m apart. Steering in one direction is done thermo-optically by means of a titanium electrode on top of the structure using the phased array principle, while steering in the other direction is accomplished by wavelength tuning. At a wavelength of 1550 nm, continuous thermo-optical steering of 2.3 degrees and wavelength steering of 14.1 degrees is reported. (C) 2009 Optical Society of America
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