Fabri-perot spectroscopy method and apparatus utilizing the same

Fabry-perot interferometer

Fabry-Perot optical sensing device for measuring a physical para

Fabry-Perot probe profilometer having feedback loop to maintain

Fabry-Perot readout technique using wavelength tuning

Fabry-perot with device mirrors including a dielectric coating o

Faraday magnet for the reduction of multi-oscillator bias therma

Faraday rotator assembly

Fast particle generating apparatus

Fault detection system for an amplified optical transmission sys

Feedback controlled differential fiber interferometer

Feedback system for a ring laser gyro

Feedback system for controlling lock-in in spring suspended ring

Ferrimagnetic Faraday elements for ring lasers

Fiber interferometer rotary motion sensor

Fiber optic angular rate sensor including arrangement for reduci

Fiber optic angular rate sensor including digital phase modulati

Fiber optic displacement sensor

Fiber optic energy sensor and optical demodulation system and me

Fiber optic gyro