Laser-based deflection measuring method and apparatus

Details Laser-based deflection measuring method and apparatus Laser-based deflection measuring method and apparatus

1979-09-27

1981-09-15

Rosenberger, R. A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

350400, 331 945C, G01B 902

Patent

active

042894042

ABSTRACT:
A laser beam is passed through a naturally birefringent or optically active device contained within the laser cavity. The device is oriented so that its optical axis is parallel to the laser beam, thus producing no birefringence or optical activity in the cavity in the steady state. The slightest tilting of the birefringent, or optically active, element causes significant changes in the modes of excitation of the optical cavity which are detected by a photosensitive beat detector. Thus the deflection angle of the optical axis is measured directly in terms of a beat frequency. By combining Faraday or Fresnel-Fizeau effects with optical activity, quadrature mode operation of a ring-laser embodiment is achieved, and is used to improve signal stability and noise rejection.

REFERENCES:
patent: 3506362 (1970-04-01), Doyle et al.
patent: 3786681 (1974-01-01), Kiehn
patent: 3791738 (1974-02-01), Newburgh

Affiliated with

Also associated with

Rating

Laser-based deflection measuring method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser-based deflection measuring method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser-based deflection measuring method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-388440