Light wave interference length-measuring apparatus

Light wavelength measuring apparatus with light modulation

Lightwave phase control for reduction of resonator fiber optic g

Line camera for spectral imaging

Linear encoder using diverging light beam diffraction

Linear fiber array mount to a spectrometer

Linear phase ramp fiber optic gyro

Linear phase ramp type fiber optic gyro having ramp reset and re

Linear spectrometer

Linear-and-angular measuring plane mirror interferometer

Liquid crystal modulator and polarization diversity optics...

Lithographic apparatus for step-and-scan imaging of mask pattern

Lithographic lens wavefront and distortion tester

Littrow spectrometer and a spectral domain optical coherence...

Loadmeter employing birefringence to measure mechanical loads an

Lock-in control system for spring suspended ring laser gyroscope

Lock-in rate discriminate apparatus for ring laser angular rate

Loop controller for fiber optic gyro with distributed data proce

Loop controller for multiplexed triaxial gyro

Low cost ring laser angular rate sensor including thin fiber gla