INTEGRATED HIGH EFFICIENCY MULTI-STAGE ACCOUSTO-OPTIC MODULATOR

摘要

An acousto-optic modulator includes a monolithic acousto-optic medium, a plurality of spaced apart acoustic transducers comprising a first and at least a second transducer both bonded and positioned on the monolithic acousto-optic medium to form first and second acoustical columns. The first and second transducers are aligned so that an incident optical beam encounters the acoustic beam produced by each of the transducers sequentially on its passage through the modulator. The transducers are oriented so that a diffracted ray from the first acoustical column enters the second acoustical column at an angle outside the acceptance angle of the second acoustical column.