Abstract
In this paper, we present a low grating lobe optical beam steering technique using unequally spaced phased array, in which the required spacings among phase elements are quantitatively analyzed so that the grating lobe can be minimized by the destructive interference from these unequally spaced phase elements. The large grating lobe is one of the major drawbacks of optical phased array technology, which limits the light efficiency and quality of the light beam. Thus, the low grating lobe technique presented in this paper could substantially improve the light efficiency and the quality of light beam, which may play an important role in a variety of applications such as fast speed ladar beam steering, large size high resolution display, and wide bandwidth free space optics communications.
| Original language | English (US) |
|---|---|
| Article number | 591104 |
| Pages (from-to) | 1-11 |
| Number of pages | 11 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5911 |
| DOIs | |
| State | Published - 2005 |
| Event | Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XI - San Diego, CA, United States Duration: Jul 31 2005 → Aug 1 2005 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering