Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Advances in science and technology
Vol. 45 (Oct. 2006), p. 2640-2647
ISSN:
1662-0356
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Natural Sciences in General
,
Technology
Notes:
Fir st prototypes of electrooptic (EO) planar deflector switches (PDS) are fabricatedwith hybrid integration on Si substrates. Planar optical modules, made in silica-on-silicontechnology, consist of input and output waveguide microlenses facing each other and slabwaveguides in between. The modules interconnect the input and output fibers with laterallycollimated light beams less than 400 [removed info]m in width at distances up to 100 mm with losses lower than3 dB. Thin lead lanthanum zirconium titanate (PLZT) films with prism-shaped electrodes grown onSrTiO3 substrates form the deflector elements. The PLZT films are more than 10 [removed info]m thick with EOcoefficients about 40 pm/V. The deflector assembly technology provides chip vertical positioningaccuracy better than 1 [removed info]m. The deflector chips are attached to the optical substrates with thermocompressionflip-chip bonding. The optical power losses of the modules with test silica chips can beas low as 3.6 dB. However, the lowest module losses achieved with PLZT are about 10 dB. Thechannel-to-channel switching operations are demonstrated at about 40 V and switching times lessthan 300 ns
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.45.2640.pdf
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