Russell A. Chipman - Tucson AZ, US Brian J. Daugherty - Tucson AZ, US Stephen C. McClain - Tucson AZ, US Steven A. Macenka - Altadena CA, US
Assignee:
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration - Washington DC
International Classification:
G01B 9/02
US Classification:
356489
Abstract:
Disclosed herein is a method of determining the near angle scattering of a sample reflective surface comprising the steps of: a) splitting a beam of light having a coherence length of greater than or equal to about 2 meters into a sample beam and a reference beam; b) frequency shifting both the sample beam and the reference beam to produce a fixed beat frequency between the sample beam and the reference beam; c) directing the sample beam through a focusing lens and onto the sample reflective surface, d) reflecting the sample beam from the sample reflective surface through a detection restriction disposed on a movable stage; e) recombining the sample beam with the reference beam to form a recombined beam, followed by f) directing the recombined beam to a detector and performing heterodyne analysis on the recombined beam to measure the near-angle scattering of the sample reflective surface, wherein the position of the detection restriction relative to the sample beam is varied to occlude at least a portion of the sample beam to measure the near-angle scattering of the sample reflective surface. An apparatus according to the above method is also disclosed.
Multiple Port Optical Component Such As An Isolater Or The Like
Stephen Kenneth Fairchild - Maxatawny Township PA Reinhard Heinrich Knerr - Upper Macungie Township PA Stephen Charles McClain - Tucson AZ Neal Henry Thorsten - Lebanon NJ
Assignee:
Lucent Technologies, Inc. - Murray Hill NJ
International Classification:
G02B 626
US Classification:
385 27
Abstract:
A structure allowing multiple optical paths through an optical isolator or the like with substantially no interaction. A lens collimates light from a first multiple fiber optic path termination. The collimated light is processed by an optical isolator unit or another optical processing unit such as a coupler. The processed light is reimaged onto a second multiple fiber optic path termination. Preferably, the optical paths in the first termination are in one-to-one correspondence with the optical paths in the second termination.
North Hills Christian High School Salisbury NC 1995-1999
Community:
Anthony Mcdaniel, Ilse Leon, Elizabeth Patrick, Tiffany Bradford, Mindi Thorneburg, Brooke Adams, Emily Richards, James Lowry, Frances Horne, Christopher Pullen, Stephanie Broadway, Elise Gianna