Title :
Accurate LIDAR beam formation through optical waveguide true time delays
Author :
Shanbhag, Ganesh ; Srinivas, T.
Author_Institution :
ECE Dept, Indian Inst. of Sci. - Bangalore, Bangalore, India
Abstract :
Optical beam steering is very essential for efficient and faster imaging of the environment using radars for both commercial and defensive purposes. Very often this is implemented in mechanical domain, which leads to numerous shortcomings like limited lifetime, electro-magnetic effects etc. To get continuous beam angle control, we use electro-optic effect. In the electro-optic waveguide approach, 1-D linear arrays of electro-optic curved, variable length waveguides were harnessed for beam steering. For fusion of microwave and optical domains proper down and up conversion is essential. Here a true time delay is implemented and unique optical splitter is also designed. In addition optimization of electrode has been proven here with brief study of different noise effects.
Keywords :
beam steering; delays; optical beam splitters; optical radar; optical waveguides; 1D linear arrays; LIDAR beam formation; electro-optic effect; electrode optimization; optical beam steering; optical splitter; optical waveguide; time delays; Delay effects; Electric variables control; Laser radar; Mechanical variables control; Optical beams; Optical imaging; Optical noise; Optical variables control; Optical waveguides; Radar imaging;
Conference_Titel :
Ultra Modern Telecommunications & Workshops, 2009. ICUMT '09. International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4244-3942-3
Electronic_ISBN :
978-1-4244-3941-6
DOI :
10.1109/ICUMT.2009.5345392