The acousto optic device includes a substrate on which {TAIL ~ a SAW guide} for guiding {HEAD ~ a surface acoustic wave} and an optical waveguide for guiding an optical wave are provided 
The acousto optic device includes a substrate on which { TAIL ~ a SAW guide } for guiding { HEAD ~ a surface acoustic wave } and an optical waveguide for guiding an optical wave are provided
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH