Dual interferometer apparatus compensating for environmental tur
Dual interferometer measuring system including a wavelength corr
Dual optical amplifier ring laser gyroscope with reduced phase l
Dual serrodyne resonator fiber optic gyroscope
Dual shear wavefront sensor
Dual spectrometer color sensor
Dual spectrometer color sensor
Dual-beam interferometer with a phase grating
Dual-beam polychromator
Dual-beam skin friction interferometer
Dual-domain point diffraction interferometer
Dual-lens shearing interferometer
Dual-polarization interferometer with a single-mode waveguide
Dynamic lateral shearing interferometer