Quantum well modulators for optical beam steering applications
- 1 September 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (9) , 790-792
- https://doi.org/10.1109/68.84494
Abstract
The authors demonstrate the possibility of laser beam control with a dynamic grating constructed of Fabry-Perot reflection modulators. Individually addressed stripes composed of quantum well reflection modulators form a diffraction grating capable of high resolution and large scanning angles. The authors obtained control of the far field pattern in the optical regime. Since the far field is a Fourier transform of the spatial reflectivity of the device, it was possible to steer a laser beam by imposing a pattern that oscillates spatially on the stripes. A simple setup results in a continuous scanning angle of 2 degrees and an output beam width of about 0.1 degrees .Keywords
This publication has 3 references indexed in Scilit:
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- 500 GHz electrically steerable photoconducting antenna arrayApplied Physics Letters, 1991
- Optimization of modulation ratio and insertion loss in reflective electroabsorption modulatorsApplied Physics Letters, 1990