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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 15 — Jul. 24, 2006
  • pp: 6844–6850

Optical projection display systems integrated with three-color-mixing waveguides and grating-light-valve devices

Ju-Nan Kuo, Hui-Wen Wu, and Gwo-Bin Lee  »View Author Affiliations

Optics Express, Vol. 14, Issue 15, pp. 6844-6850 (2006)

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An integrated optical projection display technique utilizing three-color-mixing waveguides and grating-light-valve devices is demonstrated. This new projection display system comprises an optical lens, a microscanner, a grating light valve, and a 3×1 planar waveguide device. The planar waveguide device is fabricated using a SU-8 negative photoresist process, which is suitable material for rapid prototyping of integrated optical circuits. It works as a three-color-mixer and is successfully used for color image generation. The intensity of color for each pixel in the display picture is tuned by groups of movable ribbons comprising a grating light valve and image generating diffraction gratings. This study also demonstrates a surface-micromachined optical scanner using four stress-actuated polysilicon plates to raise a horizontal mirror. The electrostatically-driven mirror can be used for scanning projection display applications. Experimental data show that the optical scanner has a mirror scanning angle up to ±15° using an operating voltage of 25 V. A sub-millisecond switching time (<900 μs) and an optical insertion loss of 0.85 dB is achieved for multi-mode waveguides. The development of the proposed integrated-optical could be promising for an image generation system.

© 2006 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.3990) Optical devices : Micro-optical devices
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Optical Design and Fabrication

Original Manuscript: May 5, 2006
Revised Manuscript: July 10, 2006
Manuscript Accepted: July 11, 2006
Published: July 24, 2006

Ju-Nan Kuo, Hui-Wen Wu, and Gwo-Bin Lee, "Optical projection display systems integrated with three-color-mixing waveguides and grating-light-valve devices," Opt. Express 14, 6844-6850 (2006)

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