发明名称 |
Radiation field analyzer using interference patterns |
摘要 |
A radiation field analyzer (10) provides means for analyzing the spatial mode spectrum of radiation received from a scene. In a multimode waveguide embodiment, light from a laser (24) is directed towards a scene through an alumina waveguide structure (12). A portion of the laser light is directed towards a mode generator (28) which selectively converts the laser radiation into one of a series of modes. Laser light returning from the scene is mixed with the light from the mode generator to produce interference signals. These signals are measured by a detector (34) and analyzed by a programmed computer (36). By sequentially altering the mode generated by the generator (28) and analyzing the resulting signals, a spectrum of the modes returning from the scene is obtained.
|
申请公布号 |
US5917596(A) |
申请公布日期 |
1999.06.29 |
申请号 |
US19970968491 |
申请日期 |
1997.11.12 |
申请人 |
THE SECRETARY OF STATE FOR DEFENCE IN HER BRITTANIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND |
发明人 |
JENKINS, RICHARD MICHAEL;DEVEREUX, ROBERT W. J. |
分类号 |
G01S7/48;G01S7/481;G01S7/499;G01S17/02;G01S17/89;G02B6/12;(IPC1-7):G01B9/02 |
主分类号 |
G01S7/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|