Accession Number:

ADA149753

Title:

Optical Vorticity Meter Task

Descriptive Note:

Final rept.

Corporate Author:

SPECTRON DEVELOPMENT LABS INC COSTA MESA CA

Personal Author(s):

Report Date:

1978-05-05

Pagination or Media Count:

61.0

Abstract:

The purpose of this study was to ascertain the conceptual feasibility of the development of a laser optical vorticity meter LOVM based on a laser ring interferometer. The author postulated that this might be possible if the detection of phase shifts produced by Fizeau drag could be enhanced by the use of multiple beam interferometry techniques. The objective sensitivity is 5 mrs vorticity with one second averaging time. Section 2 of this report presents a few relevant historical equations and selected results of the literature search. Selected papers are reproduced in the appendices for the convenience of the reader. Section 3 describes two postulated LOVM systems and presents a brief sensitivity analysis. Section 4 concludes that experimental development of these concepts is not justified at the present. Current efforts in enhancement of fiber ring interferometer sensitivity should be watched closely, and reference beam laser velocimeter techniques should be reexamined. Originator-supplied keywords include Monochromatic light Laser cavities Configurations Sea water Phase detectors Monitoring.

Subject Categories:

  • Lasers and Masers
  • Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE