Note: The extinction ratio may be expressed as a fraction or in dB.
An example of an extinction ratio measurement taken on a eye diagram can be seen below:
US Patent Issued to Oclaro (North America) on June 19 for "High Extinction Ratio Liquid Crystal Optical Switch" (California Inventors)
Jun 21, 2012; ALEXANDRIA, Va., June 21 -- United States Patent no. 8,203,691, issued on June 19, was assigned to Oclaro (North America) Inc....
US Patent Issued to Sumitomo Electric Industries on Oct. 5 for "Auto-Power Control Circuit to Maintain Extinction Ratio of Optical Output from Laser Diode" (Japanese Inventor)
Oct 06, 2010; ALEXANDRIA, Va., Oct. 12 -- United States Patent no. 7,809,034, issued on Oct. 5, was assigned to Sumitomo Electric Industries...