Patent ID: 9212912
Filing Date: 2015-12-15
Classification: G01C,H01S

Abstract:
1. A laser gyroscope comprising: a first solid waveguide; a gain medium interaction region where light traveling through the first solid waveguide interacts with non-solid Doppler-broadened gain medium molecules positioned outside of the first solid waveguide; at least one medium exciter configured to excite the non-solid Doppler-broadened gain medium at the gain medium interaction region, wherein the excited non-solid Doppler-broadened gain medium induces first and second laser fields within the first solid waveguide, wherein the first laser field travels in a clockwise direction within the first solid waveguide and the second laser field travels in a counter-clockwise direction within the first solid waveguide; wherein the gain medium interaction region causes energy from the first and second laser fields to travel outside of the first solid waveguide into an evanescent mode where the first and second laser fields interact with the non-solid Doppler-broadened gain medium molecules positioned outside the first solid waveguide; a second solid waveguide having a first section positioned in close proximity with the first solid waveguide, a second section positioned on a first side of the first section, a third section positioned on a second side of the first section, and a readout optical coupler coupling the second section and the third section together at an output end; wherein the second solid waveguide is configured to couple portions of the first and second laser fields from the first solid waveguide and into the output end; and a photodetector communicatively coupled to the readout optical coupler at the output end and configured to detect the portions of the first and second laser fields.