Frequency splitting laser micrometer

Gas insensitive interferometric apparatus and methods

Helium- Neon laser light source generating two harmonically...

Heterodyne array detector

Heterodyne array detector

Heterodyne based optical spectrum analysis with controlled...

Heterodyne frequency modulated signal demodulator and method...

Heterodyne interferometer device for optically measuring an...

Heterodyne interferometer with a phase modulated source

Heterodyne interferometer with angstrom-level periodic...

Heterodyne interferometry for small spacing measurement

Heterodyne laser interferometer using heterogenous mode...

Heterodyne lateral grating interferometric encoder

Heterodyne optical network analysis that utilizes signal...

Heterodyne wavefront sensor

Hetrodyne interferometer and associated interferometric method

High accuracy ring laser interferometer using an external...

Inspection of surfaces

Interference detecting apparatus and tomography apparatus

Interferometer having a dynamic beam steering assembly