Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 15, 2007
Patent Application Number
10482223
Date Filed
January 27, 2003
Patent Primary Examiner
Patent abstract
A laser light source outputs a virtually linearly-polarized light beam that has plural mode components arranged at an interval of an almost equal angular frequency. A polarization dispersion device is connected to the laser light source in such a way that a polarization axis of the polarization dispersion device is at 45° with respect to a polarization axis of the light beam output from the laser light source. This polarization dispersion device effects on the light beam output from the laser light source a polarization mode dispersion that is not in the vicinity of (2π/Δω), where Δω is a mode interval angular frequency.
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