Polarization-independent, wavelength-shift-free optical phase conjugator using a nonlinear fiber Sagnac interferometer

We propose and experiment with a novel configuration of a wavelength-shift-free optical phase conjugator using a nonlinear fiber Sagnac interferometer. In the proposed configuration, two orthogonally polarized pump waves are fed into different ports of the Sagnac interferometer, and we can achieve polarization-independent as well as wavelength-shift-free operation.

[1]  S. Yamashita,et al.  Polarization independent, all-fiber phase conjugation incorporating inline fiber DFB lasers , 1998, IEEE Photonics Technology Letters.

[2]  Wavelength-shift-free spectral inversion with an optical parametric loop mirror. , 1996, Optics letters.

[3]  Shigeki Watanabe,et al.  Interband wavelength conversion of 320 Gb/s (32/spl times/10 Gb/s) WDM signal using a polarization-insensitive fiber four-wave mixer , 1998, 24th European Conference on Optical Communication. ECOC '98 (IEEE Cat. No.98TH8398).

[4]  S. Watanabe,et al.  Compensation of pulse shape distortion due to chromatic dispersion and Kerr effect by optical phase conjugation , 1993, IEEE Photonics Technology Letters.

[5]  M Saruwatari,et al.  Optical parametric loop mirror. , 1995, Optics letters.

[6]  K. Inoue,et al.  Spectral inversion with no wavelength shift based on four-wave mixing with orthogonal pump beams. , 1997, Optics letters.

[7]  K. Kikuchi,et al.  Design of highly efficient four-wave mixing devices using optical fibers , 1994, IEEE Photonics Technology Letters.

[8]  K. Kikuchi,et al.  Design theory of long-distance optical transmission systems using midway optical phase conjugation , 1997 .

[9]  E.A. Swanson,et al.  A fiber frequency shifter with broad bandwidth, high conversion efficiency, pump and pump ASE cancellation, and rapid tunability for WDM optical networks , 1994, IEEE Photonics Technology Letters.

[10]  P. Spano,et al.  Optical spectral inversion without frequency shift by four-wave mixing using two pumps with orthogonal polarization , 1998, IEEE Photonics Technology Letters.

[11]  R. Jopson,et al.  Polarisation-independent phase conjugation of lightwave signals , 1993 .