Patent ID: 7873282

Claim:
A transmission system comprising: an optical fiber; a pair of transmitters configured to transmit respectively produced optical signals over the optical fiber, the optical signals being transmitted at the same wavelength and having orthogonal states of polarization; and a receiver configured to: receive the respectively produced optical signals from the optical fiber; filter two components of the received signal having the orthogonal states of polarization based on a transfer matrix H(ω) that is dynamically controlled responsive to two output signals to approximate a reverse transfer matrix of the optical fiber in a region of the spectrum occupied by the received signal to compensate for a polarization mode dispersion and a polarization rotation introduced by the optical fiber; eliminate distortion and mutual interference effects for both the respectively produced optical signals; obtain an approximate repetition of the respectively produced optical signals at an output of the receiver; and wherein the transfer matrix H(ω) is: H ⁡ ( ω ) = ⅇ - j ⁢ N 2 ⁢ ω ⁢ ⁢ τ ( C ⁡ ( ω ) D ⁡ ( ω ) - D * ( ω ) C * ( ω ) ) and wherein the two functions C(ω) and D(ω) are given by: C ⁡ ( ω ) = ∑ k = 0 N ⁢ ⁢ c k ⁢ ⅇ - j ⁡ ( k - N / 2 ) ⁢ ωτ D ⁡ ( ω ) = ∑ k = 0 N ⁢ ⁢ d k ⁢ ⅇ - j ⁡ ( k - N / 2 ) ⁢ ωτ with | C (ω)| 2 +|D (ω)| 2 =1 and where τ is an appropriate temporal delay, and c k and d k are complex coefficients that are dynamically controlled based on the two output signals.