Optical fiber interference wavelength/frequency detection appara

Details Optical fiber interference wavelength/frequency detection appara Optical fiber interference wavelength/frequency detection appara

1993-10-20

1995-06-20

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

356346, 25022727, G01B 902

Patent

active

054265029

ABSTRACT:
The invention provides an optical wavelength/frequency detection apparatus for detecting a wavelength of a frequency of a laser source, which is improved in that it eliminates a movable element to achieve a high degree of long term reliability and can detect a wavelength or a frequency of light with a high degree of accuracy with a high resolution while it is small in size. The optical wavelength/frequency detection apparatus comprises a pair of optical fibers for individually propagating two optical outputs of a measurement light splitting optical coupler, a driver for varying the relative difference between optical path lengths of two beams of light propagated in the optical fibers, a light receiver for receiving interference light of the measurement light from a measurement light combining optical coupler, and a counter for counting the number of interference pulses of the measurement light received by the light receiver. Measurement light information from the counter and reference light information are processed by comparison calculation processing to calculate a wavelength or a frequency of the measurement light.

REFERENCES:
patent: 4790655 (1988-12-01), Yamamoto et al.
patent: 5022754 (1991-06-01), Varnham

Affiliated with

Also associated with

Rating

Optical fiber interference wavelength/frequency detection appara does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical fiber interference wavelength/frequency detection appara, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber interference wavelength/frequency detection appara will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1848074