The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 05, 2016

Filed:

Oct. 05, 2011
Applicants:

Alexandre B. Braga, Salvador, BR;

Jean-claude Diels, Albuquerque, NM (US);

Ronald R. Kay, Albuquerque, NM (US);

Inventors:

Alexandre B. Braga, Salvador, BR;

Jean-Claude Diels, Albuquerque, NM (US);

Ronald R. Kay, Albuquerque, NM (US);

Assignee:

STC.UNM, Albuquerque, NM (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/30 (2006.01); G01B 7/14 (2006.01); H01S 3/067 (2006.01); G01B 7/00 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06791 (2013.01); G01B 7/003 (2013.01); H01S 3/06712 (2013.01);
Abstract

In various embodiments, systems and methods can be structured to provide efficient active bidirectional mode-locked lasers, which can be used as intracavity phase interferometer (IPI) sensors. Stable bidirectional mode-locking can be achieved by a combination of a passive mechanism, a passively driven active mechanism, and a beat note detection system. Such systems can be used in guidance, navigation, and control systems, where attitude control of a vehicle relies on accurate measurements of its position and motion. In various embodiments, a detection system can be based on an all fiber intracavity phase interferometer (IPI) active laser capable of delivering accurate simultaneous measurements of all three degrees of rotation and position in a single, compact, cost effective unit. A variation of the same system can include a linear cavity laser for accurate measurements of acceleration without the use of any inertial masses. Additional apparatus, systems, and methods are disclosed.


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