Grating based phase control optical delay line
文献类型：专利
| 作者 | TEARNEY, GUILLERMO; BOUMA, BRETT E.; FUJIMOTO, JAMES G. |
| 发表日期 | 2001-08-28 |
| 专利号 | US6282011 |
| 著作权人 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Grating based phase control optical delay line |
| 英文摘要 | An apparatus for performing high speed scanning of an optical delay and its application for performing optical interferometry, ranging, and imaging, including cross sectional imaging using optical coherence tomography, is disclosed. The apparatus achieves optical delay scanning by using diffractive optical elements in conjunction with imaging optics. In one embodiment a diffraction grating disperses an optical beam into different spectral frequency or wavelength components which are collimated by a lens. A mirror is placed one focal length away from the lens and the alteration of the grating groove density, the grating input angle, the grating output angle, and/or the mirror tilt produce a change in optical group and phase delay. This apparatus permits the optical group and phase delay to be scanned by scanning the angle of the mirror. In other embodiments, this device permits optical delay scanning without the use of moving parts. |
| 公开日期 | 2001-08-28 |
| 申请日期 | 2000-06-26 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/33673]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
| 推荐引用方式 GB/T 7714 | TEARNEY, GUILLERMO,BOUMA, BRETT E.,FUJIMOTO, JAMES G.. Grating based phase control optical delay line. US6282011. 2001-08-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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