Title :
Integrated acoustooptic circuits and applications
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Irvine, CA, USA
Abstract :
The recent development of titanium-indiffusion proton-exchange (TIPE) microlenses and lens arrays has made possible the construction of a variety of single- and multichannel integrated acoustooptic (AO) and acoustooptic-electrooptic (EO) circuits in LiNbO/sub 3/ channel-planar waveguides 0.1*1.0*2.0 cm/sup 3/ in size. These hybrid AO and AO-EO circuits can be fabricated through compatible and well-established technologies. The most recent realization of ion-milled microlenses and lens arrays together with the recent development of gigahertz AO Bragg modulators and EO Bragg modulator arrays have also paved the way for construction of similar but monolithic AO and AO-EO GaAs/GaAlAs waveguides of comparable size. Both types of integrated AO and AO-EO circuits suggest versatile applications in communications signal processing, and computing. Efficient and simultaneous excitation of the channel waveguide array using an ion-milled planar microlens array has facilitated the demonstration of some of these applications.<>
Keywords :
III-V semiconductors; acousto-optical devices; aluminium compounds; electro-optical devices; gallium arsenide; integrated optics; lenses; lithium compounds; optical modulation; optical waveguide components; optical waveguides; optical workshop techniques; AO circuits; AO-EO circuits; EO Bragg modulator arrays; GaAs-GaAlAs monolithic waveguide; LiNbO/sub 3/ channel planar waveguide; TIPE microlens; Ti indiffusion proton exchange technique; acoustooptic-electrooptic circuits; channel waveguide array; computing; gigahertz AO Bragg modulators; ion-milled microlenses; lens arrays; multichannel integrated acoustooptic circuits; planar microlens array; semiconductor; signal processing; Circuits; Electrooptic modulators; Electrooptical waveguides; Gallium arsenide; Lenses; Microoptics; Optical planar waveguides; Optical signal processing; Optical waveguides; Planar waveguides;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
