Off-chip beam steering with a one-dimensional optical phased array on silicon-on-insulator

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


Published in:
Optics Letters, 34, 1477-1479
Year:
2009
Publisher:
Optical Society of America
ISSN:
0146-9592
Laboratories:




 Record created 2010-07-17, last modified 2018-01-28

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