Selectively enabled delay elements for interferometers
First Claim
1. An adjustable lag interferometer of the type including means for separating an input beam into two paths, means for applying adjustable relative lag to light passing through the two paths, and means for recombining light from the two paths, wherein the means for applying adjustable relative lag comprises:
- a plurality of selectively enabled delay elements each incorporated into one of the interferometer paths, each delay element selectively applying a delay of either P or P+nΓ
to light passing through the path in which said element is incorporated.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to interferometers with adjustable path length differences (lags). The method of adjusting the interferometer lag is by selectively enabling a plurality of different fixed path length delay elements in either or both of the interferometer arms or paths. In addition, an interferometer with a small but continuously adjustable lag may be extended to much greater lags by adding such delay elements to one or both of the interferometer'"'"'s paths.
-
Citations
11 Claims
-
1. An adjustable lag interferometer of the type including means for separating an input beam into two paths, means for applying adjustable relative lag to light passing through the two paths, and means for recombining light from the two paths, wherein the means for applying adjustable relative lag comprises:
-
a plurality of selectively enabled delay elements each incorporated into one of the interferometer paths, each delay element selectively applying a delay of either P or P+nΓ
to light passing through the path in which said element is incorporated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification