Optical signal to noise ratio monitoring using variable phase difference phase portrait with software synchronization.

In this paper, a novel optical signal to noise ratio (OSNR) monitoring method using 2-dimension (2-D) phase portrait is proposed and demonstrated, which is generated by using a single low-speed sampling channel with software synchronization technique. Moreover, variable phase difference is proposed to generate the X-Y pairs, which increases the tolerance of synchronization accuracy significantly. This method is a cost effective solution with simple system setup.

[1]  Changyuan Yu,et al.  Optical performance monitoring for the next generation optical communication networks , 2010 .

[2]  S.D. Dods,et al.  Optical performance monitoring technique using delay tap asynchronous waveform sampling , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[3]  N. Hanik,et al.  Application of amplitude histograms to monitor performance of optical channels , 1999 .

[4]  Wei Pan,et al.  Simultaneous OSNR Monitoring for Two Polarization Tributaries of a PDM Signal Using a Polarization-Diversity Nonlinear Loop Mirror Based on FWM , 2012, Journal of Lightwave Technology.

[5]  Y. Takushima,et al.  Phasor monitoring of DxPSK signals using software-based synchronization technique , 2010 .

[6]  Y. C. Chung,et al.  OSNR monitoring technique based on software-based synchronous amplitude histogram analysis , 2013, 2013 18th OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS).

[7]  H. Takara,et al.  Simple Q factor monitoring for BER estimation using opened eye diagrams captured by high-speed asynchronous electrooptical sampling , 2003, IEEE Photonics Technology Letters.

[8]  J.H. Lee,et al.  OSNR monitoring technique using polarization-nulling method , 2001, IEEE Photonics Technology Letters.

[9]  A. Teixeira,et al.  Optical Signal-to-Noise Ratio Estimation Using Reference Asynchronous Histograms , 2009, Journal of Lightwave Technology.

[10]  Chao Lu,et al.  Statistical Analysis of Optical Signal-to-Noise Ratio Monitoring Using Delay-Tap Sampling , 2010, IEEE Photonics Technology Letters.

[11]  A. Maruta,et al.  Experimental Investigation of Delay-Tap Sampling Technique for Online Monitoring of RZ-DQPSK Signals , 2009, IEEE Photonics Technology Letters.

[12]  Changyuan Yu,et al.  Optical signal to noise ratio monitoring using single channel sampling technique. , 2014, Optics express.

[13]  Chao Lu,et al.  OSNR Monitoring for RZ-DQPSK Systems Using Half-Symbol Delay-Tap Sampling Technique , 2010, IEEE Photonics Technology Letters.