Spatial light modulators using birefringence in multiple-quantum-well structures

Faquir C. Jain; S. K. Cheung; Glen W. Drake

doi:10.1117/12.138894

13 January 1993 Spatial light modulators using birefringence in multiple-quantum-well structures

Faquir C. Jain, S. K. Cheung, Glen W. Drake

Proceedings Volume 1751, Miniature and Micro-Optics: Fabrication and System Applications II; (1993) https://doi.org/10.1117/12.138894
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Birefringence in multiple quantum well (MQW) layers is utilized in a novel way to realize high performance two-dimensional spatial light modulators (SLMs). The polarized light is coupled into MQW layers using a grating. The light is modulated by an externally applied electric field which changes the birefringence in each pixel. The modulated light is recovered using a turning mirror similar to those employed in surface-emitting laser configurations. The usage of birefringence is shown to result in significantly higher contrast ratios than obtained in devices (e.g., SEEDs) using only electroabsorption. Both electrically and optically addressed structures are described.

Citation Download Citation

Faquir C. Jain, S. K. Cheung, and Glen W. Drake "Spatial light modulators using birefringence in multiple-quantum-well structures", Proc. SPIE 1751, Miniature and Micro-Optics: Fabrication and System Applications II, (13 January 1993); https://doi.org/10.1117/12.138894

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