Reflective Fabry-Perot interferometer
AssigneeITT Corporation
InventorRobert J. Kraushaar
Life of this patent
Estimating the term…
Abstract
The improved reflection Fabry-Perot interferometer includes the conventional pair of spaced parallel mirrors have a predetermined angle with respect to an incident light beam. The improvement includes third and fourth mirrors each disposed at a different end of the first and second mirrors at a second predetermined angle with respect to a line parallel to the incident light beam so as to reduce the end losses in the two parallel conventional mirrors and to reinforce the light beam emanating from the two conventional mirrors.
Claims18
An improved reflective Fabry-Perot resonant cavity comprising:
- a first mirror partially transparent disposed at a first predetermined angle with respect to a given axis;
- a second mirror partially transparent spaced from and parallel to said first mirror, said first and second mirrors enabling reflection of light therebetween to produce a light beam emanating from one of said first and second mirrors;
- a third mirror disposed at one end of said first and second mirrors at a second predetermined angle with respect to a line parallel to said given axis;
- and
- a fourth mirror disposed at the other end of said first and second mirrors parallel to said third mirror, said third and fourth mirrors reflecting light attempting to escape from between said ends of said first and second mirrors to reinforce said light beam.
A resonant cavity according to claiim 3, wherein
- a gaseous material is disposed between said first and second mirrors.
An improved reflective Fabry-Perot interferometer comprising:
- a first mirror partially transparent disposed at a first predetermined angle with respect to a parallel beam of light incident thereon;
- a second mirror spaced from and parallel to said first mirror, said first and second mirrors enabling reflection of said light therebetween to produce a light beam emanating from said first mirror;
- a third mirror disposed at one end of said first and second mirrors at a second predetermined angle with respect to a line parallel to said incident light beam;
- and
- a fourth mirror disposed at the other end of said first and second mirrors parallel to said third mirror, said third and fourth mirrors reflecting light attempting to escape from between said ends of said first and second mirrors to reinforce said emanating light beam.
Dependencies are inferred from the claim text.