In-band OSNR monitoring based on low-bandwidth coherent receiver and tunable laser

Abstract

An in-band optical signal-to-noise ratio (OSNR) monitoring technique with high resolution and large measurement range is demonstrated based on low-bandwidth coherent receiver and a tunable laser. The measurement range of OSNR is from 10 to 25 dB and the resolution can be controlled about ±1 dB.

Keywords

optical performance monitoring (OPM) / optical signal-to-noise ratio (OSNR) / coherent communication / tunable laser

References

[1] Pan Z, Yu C, Willner A E. Optical performance monitoring for the next generation optical communication networks. Optical Fiber Technology, 2010, 16(1): 20–45

[2] Suzuki H, Takachio N. Optical signal quality monitor built into WDM linear repeaters using semiconductor arrayed waveguide grating filter monolithically integrated with eight photodiodes. Electronics Letters, 1999, 35(10): 836–837

[3] Lee J H, Jung D K, Kim C H, Chung Y C. OSNR monitoring technique using polarization-nulling method. IEEE Photonics Technology Letters, 2001, 13(1): 88–90

[4] Chan C C K. Optical Performance Monitoring: Advanced Techniques for Next-Generation Photonic Networks. Amsterdam: Academic Press, 2010

[5] Wang D, Cao J, Peng Y, Ma H, Fu H, Geng D, Li J, Li Z. OSNR monitoring based on low-cost coherent scanning receiver and reference spectrum technique. In: Proceedings of Asia Communications and Photonics Conference (ACP). 2014, ATh4G.3

[6] Do C C, Zhu C, Tran A V. Data aided OSNR estimation using low-bandwidth coherent receivers. IEEE Photonics Technology Letters, 2001, 26(12): 1291–1294

[7] Lin H, Gui T, Li J, Ma H, Fu F, Geng D, Li Z. Optical power monitoring based on low-cost coherent scanning technique. In: Proceedings of International Photonics and Opto-Electronics Meetings (POEM). 2014, FTh3F.2

Acknowledgements

The authors would like to acknowledge the support of the National Natural Science Foundation of China (NSFC) (Grant No. 61435006) and the Program for New Century Excellent Talents in University (NCET-12-0679) in China.

RIGHTS & PERMISSIONS

2016 Higher Education Press and Springer-Verlag Berlin Heidelberg