Numerical Comparison of WDM Interchannel Crosstalk in FOPA- and PPLN-Based PSAs

We propose a model and numerical simulations to calculate crosstalk (XT) between multiple wavelength-division-multiplexing (WDM) channels in copier + phase sensitive amplifier (PSA) chains based on periodically poled lithium niobate (PPLN). The calculated XT is compared with XT generated in copier + PSA chains based on highly nonlinear fiber (HNLF). For ordinary device parameters, the results show that for an increasing channel number, the growth of interchannel XT in PPLN is less rapid compared with HNLF, as a consequence of the finite quasi-phase matching band of PPLN. This ensures lower XT in PPLN-based chains for 18 channels, whereas HNLF chains show better XT performance for 4 channels.

[1]  Takeshi Umeki,et al.  In-line phase sensitive amplifier based on PPLN waveguides. , 2013, Optics express.

[2]  P. Andrekson,et al.  Towards ultrasensitive optical links enabled by low-noise phase-sensitive amplifiers , 2011 .

[3]  M. Jamshidifar,et al.  Reduction of Four-Wave-Mixing Crosstalk in a Short Fiber-Optical Parametric Amplifier , 2009, IEEE Photonics Technology Letters.

[4]  B. Puttnam,et al.  Multi-channel phase squeezing in a PPLN-PPLN PSA , 2012, OFC/NFOEC.

[5]  B. Corcoran,et al.  Phase-sensitive optical pre-amplifier implemented in an 80km DQPSK link , 2012, OFC/NFOEC.

[6]  Wada Naoya,et al.  Phase-squeezing properties of non-degenerate PSAs using PPLN waveguides , 2011 .

[7]  Zhi Tong,et al.  Noise performance of optical fiber transmission links that use non-degenerate cascaded phase-sensitive amplifiers. , 2010, Optics express.

[8]  Toshio Morioka,et al.  Low-Crosstalk 103 Channel ×10 Gb/s (1.03 Tb/s) Wavelength Conversion With a Quasi-Phase-Matched , 2006 .

[9]  Takeshi Umeki,et al.  Phase sensitive amplification with noise figure below the 3 dB quantum limit using CW pumped PPLN waveguide. , 2012, Optics express.

[10]  B. Puttnam,et al.  Signal-signal crosstalk measurements in a PPLN-PPLN PSA with narrow channel spacing , 2012, 2012 17th Opto-Electronics and Communications Conference.

[11]  H. Takara,et al.  Low-Crosstalk 103 Channel$,times,$10 Gb/s (1.03 Tb/s) Wavelength Conversion With a Quasi-Phase-Matched LiNbO$_3$Waveguide , 2006, IEEE Journal of Selected Topics in Quantum Electronics.

[12]  Deming Liu,et al.  Wavelength conversion between picosecond pulses using cascaded second-order nonlinearity in LiNbO3 waveguides , 2005 .

[14]  Francesca Parmigiani,et al.  Phase sensitive amplification based on quadratic cascading in a periodically poled lithium niobate waveguide. , 2009, Optics express.

[15]  Govind P. Agrawal,et al.  Nonlinear Fiber Optics , 1989 .