Diffractometer for measuring signal depth and width
Digital path length control for ring laser gyros
Digital phase modulator for fiber optic sagnac interferometer
Digital phase ramp type fiber optic gyro
Digital ramp phase type optical interference gyro
Digital spectral identifier-controller and related methods
Digital spectral identifier-controller and related methods
Digital synthetic serrodyne for fiber optic gyroscope
Digital to analog interface conversion circuit
Diode array spectrophotometer
Diode array spectrophotometer
Diode-array spectrometer
Direct slope measurement shearing interferometer
Direction switched mode-locked laser gyroscope
Discrete wavelength spectrometer
Discriminant apparatus for a ring laser angular rate sensor
Discriminant apparatus for laser gyros
Discriminant apparatus for laser gyros
Discriminant apparatus for ring laser angular rate sensors
Dispersion equalized ring laser gyroscope