Optical signal power measurement method and apparatus
CA 1301473 C · Owner: General Signal Corporation · Inventors: Andreasen, Dinal S.; Maslaney, Michael J.; Brown, Clifford D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for measuring power and power losses of light transmissions in fiber optic cables. The apparatus includes a tester haing a transmitter and a receiver wherein the, transmitter provides at one end of a fiber optic cable a test signal of a known wavelength of light modulated at a known or signature AC frequency. The receiver detects the transmitted signal at a second end of the cable, determines the modulating frequency of the transmitted signal for identifying the transmitted wavelength of light and measures power of the AC signal. If measuring the power loss, the receiver further compares the power intensities of the transmitted signal with the power intensity of a …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.