Claims
- 1. An optical device that compensates for polarization mode dispersion (PMD) of an optical signal, comprising:a first rotating device that rotates the polarization angle of the optical signal in a frequency-dependent manner; a first order PMD compensator that receives the rotated signal and compensates for first-order PMD; and a second rotating device that receives the compensated signal and rotates the polarization angle of the compensated signal in a frequency-dependent manner to compensate for higher order PMD, wherein passing the optical signal through the first rotation device in a forward direction causes a first transformation R(ωK) of the optical signal and passing the optical signal in a backward direction causes a second transformation R−1(ωK), wherein ω denotes the deviation from a central angular frequency of the optical signal and K relates to a variable delay.
- 2. A method for compensating for polarization mode dispersion (PMD) of an optical signal, comprising:first rotating a first polarization angle of the optical signal in a frequency-independent manner to generate an intermediate optical signal; and second rotating a second polarization angle of the intermediate optical signal in a frequency-dependent manner to compensate for higher order PMD, wherein the first rotating and second rotating are performed by a single polarization rotation device.
Parent Case Info
This nonprovisional application claims the benefit of the U.S. provisional application No. 60/151,959 entitled “A Simple Compensator for High-order Polarization Mode Dispersion Effects” filed on Sep. 1, 1999. The Applicants of the provisional application are Antonio MECOZZI, Jonathan A. NAGEL, Mark STAIF and Moshe TUR. The above provisional application is hereby incorporated by references including all references cited therein
US Referenced Citations (4)
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/151959 |
Sep 1999 |
US |