Issued Patents All Time
Showing 51–75 of 115 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8446590 | Optical filtering for resonator-fiber-optic gyroscopes | John R. Feth, Lee K. Strandjord, Tiequn Qiu | 2013-05-21 |
| 8446589 | Residual intensity modulation (RIM) control loop in a resonator fiber-optic gyroscope (RFOG) | Lee K. Strandjord, Tiequn Qiu | 2013-05-21 |
| 8422024 | High performance hollow-core optical-fiber filter for optical rotation sensing | Lee K. Strandjord, Tiequn Qiu, John R. Feth, Andrew W. Kaliszek | 2013-04-16 |
| 8294900 | Systems and methods for resonator fiber optic gyroscope intensity modulation control | Lee K. Strandjord, Norman Gerard Tarleton | 2012-10-23 |
| 8274659 | Resonator fiber optic gyroscopes with reduced rotation rate instability from back reflections | Tiequn Qiu, Lee K. Strandjord | 2012-09-25 |
| 8259301 | Cavity length modulation in resonator fiber optic gyroscopes | Lee K. Strandjord, Tiequn Qiu | 2012-09-04 |
| 8223341 | System and method for enhancing signal-to-noise ratio of a resonator fiber optic gyroscope | Lee K. Strandjord, Tiequn Qiu | 2012-07-17 |
| 8213019 | RFOG with optical heterodyning for optical signal discrimination | Lee K. Strandjord, Tiequn Qiu | 2012-07-03 |
| 8098380 | Resonator fiber optic gyroscope (RFOG) with reduced bias error from high order spatial modes | Tiequn Qiu, Lee K. Strandjord | 2012-01-17 |
| 8085407 | Resonator optical gyroscope having input beam modulation optimized for high sensitivity and low bias | Tiequn Qiu, Lee K. Strandjord | 2011-12-27 |
| 8068233 | Compact resonator fiber optic gyroscopes | Tiequn Qiu, Lee K. Strandjord | 2011-11-29 |
| 8031989 | Radiological and nuclear optical sensor | — | 2011-10-04 |
| 8009296 | Light-phase-noise error reducer | Tiequn Qiu, Lee K. Strandjord | 2011-08-30 |
| 7957005 | Fiber optic apparatus and method for sensing hazardous materials | — | 2011-06-07 |
| 7952772 | Photonic crystal fiber sensor | — | 2011-05-31 |
| 7933020 | System and method for reducing laser phase noise in a resonator fiber optic gyroscope | Lee K. Strandjord, Tiequn Qiu | 2011-04-26 |
| 7894073 | Bias-instability reduction in fiber optic gyroscopes | Tiequn Qiu, Steven Sanders, Sorin Mosor | 2011-02-22 |
| 7889350 | RFOG with reduced polarization mode induced bias error | Tiequn Qiu, Lee K. Strandjord | 2011-02-15 |
| 7855789 | RFOG modulation error correction | Lee K. Strandjord | 2010-12-21 |
| 7844152 | Kerr effect compensated optical ring resonator | — | 2010-11-30 |
| 7802928 | System and method for fiber based resonator coupling | Jennifer S. Strabley, James F. Detry, Paul E. Bauhahn | 2010-09-28 |
| 7777889 | Bias-instability reduction in fiber optic gyroscopes | Tiequn Qiu, Steven Sanders, Sorin Mosor | 2010-08-17 |
| 7751055 | Hollow core fiber optical gyro | Lee K. Strandjord | 2010-07-06 |
| 7702189 | Fiber optic chemical sensor | — | 2010-04-20 |
| 7697143 | Reliable low loss hollow core fiber resonator | Andrew W. Kaliszek, Thien Dang | 2010-04-13 |