EP 1960737 A1 20080827 - SOLID-STATE LASER GYRO HAVING ORTHOGONAL COUNTER-PROPAGATING MODES
Title (en)
SOLID-STATE LASER GYRO HAVING ORTHOGONAL COUNTER-PROPAGATING MODES
Title (de)
HALBLEITER-LASER-KREISEL MIT ORTHOGONALEN, SICH ENTGEGENGESETZT AUSBREITENDEN MODEN
Title (fr)
GYROLASER A ETAT SOLIDE A MODES CONTRE-PROPAGATIFS ORTHOGONAUX
Publication
Application
Priority
- EP 2006069449 W 20061207
- FR 0512604 A 20051213
Abstract (en)
[origin: WO2007068654A1] The invention concerns solid-state laser gyros used in inertial navigation unit. However, the design of this type of laser gyros involves some technical difficulties related partly to the fact that the counter-propagating waves interfere in the amplifying medium. The inventive laser gyro comprises at least one solid-state amplifying medium (2) and one ring optical cavity (1) including first optical means (4) enabling a first common linear polarization state to be imparted to the two counter-propagating optical waves in input and output of the zone containing the amplifying medium and second optical means (30, 31) enabling, inside the amplifying medium, a second linear polarization state to be imparted to the first optical wave and a third linear polarization state to the second optical wave, said polarization states being perpendicular, thereby eliminating all the inconveniences related to interferences.
IPC 8 full level
G01C 19/66 (2006.01)
CPC (source: EP US)
G01C 19/66 (2013.01 - EP US)
Citation (search report)
See references of WO 2007068654A1
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
FR 2894662 A1 20070615; FR 2894662 B1 20080125; CN 101331382 A 20081224; EP 1960737 A1 20080827; RU 2008128484 A 20100120; US 2009116031 A1 20090507; US 7710575 B2 20100504; WO 2007068654 A1 20070621
DOCDB simple family (application)
FR 0512604 A 20051213; CN 200680047080 A 20061207; EP 06830453 A 20061207; EP 2006069449 W 20061207; RU 2008128484 A 20061207; US 9736706 A 20061207