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