Multi-channel in-band OSNR monitoring using Stimulated Brillouin Scattering.

We investigate an optical performance monitor based on Stimulated Brillouin scattering (SBS), for enabling the measurement of the in-band optical signal to noise ratio (OSNR) for multiple channels of a wavelength-division multiplexed (WDM) signal simultaneously. The principle relies on propagating the signal in a nonlinear waveguide so that each channel pumps SBS to produce a back-scattered Stokes wave of unique carrier wavelength, and with a power that depends on the in-band OSNR of the channel itself. We experimentally demonstrate a highly sensitive OSNR measurement for a 3 x 40 Gb/s signal, with a small sensitivity to the input state of polarization, and a large dynamic range (25 dB) in the Stokes power. Our results also reveal the insensitivity of SBS to both chromatic and polarization-mode dispersions, and the indirect role these effects can play in mitigating the suppression of SBS from the nonlinear Kerr effect.

[1]  C. Schubert,et al.  Impact of Pump-Phase Modulation on FWM-Based Wavelength Conversion of D(Q)PSK Signals , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[2]  Lian-Kuan Chen,et al.  PMD-insensitive OSNR monitoring based on polarization-nulling with off-center narrow-band filtering , 2004 .

[4]  Moshe Tur,et al.  Vector analysis of stimulated Brillouin scattering amplification in standard single-mode fibers. , 2008, Optics express.

[5]  Sébastien Le Floch,et al.  Theoretical evaluation of the Brillouin threshold and the steady-state Brillouin equations in standard single-mode optical fibers. , 2003, Journal of the Optical Society of America. A, Optics, image science, and vision.

[6]  S. Chandrasekhar,et al.  OSNR Monitoring Method for OOK and DPSK Based on Optical Delay Interferometer , 2007, IEEE Photonics Technology Letters.

[7]  L. D. Tzeng,et al.  A 5 Gb/s repeaterless transmission system using erbium-doped fiber amplifiers , 1993, IEEE Photonics Technology Letters.

[8]  P. Petropoulos,et al.  Investigation of Four-Wavelength Regenerator Using Polarization- and Direction-Multiplexing , 2008, IEEE Photonics Technology Letters.

[9]  Wei Chen,et al.  Adding OSNR and wavelength monitoring functionalities on a double-resolution-AWG-based power monitoring circuit , 2003 .

[10]  Jason Hurley,et al.  Experimental study of SBS mitigation and transmission improvement from cross-phase modulation in 10.7 Gb/s unrepeatered systems. , 2007, Optics express.

[11]  Steve Madden,et al.  Properties of GexAsySe1-x-y glasses for all-optical signal processing. , 2008, Optics express.

[12]  Lars Gruner-Nielsen,et al.  Suppression of Brillouin scattering in fibre-optical parametric amplifier by applying temperature control and phase modulation , 2009 .

[13]  Tomoyoshi Kataoka,et al.  10 Gbit/s, 300 km repeaterless transmission with SBS suppression by the use of the RZ format , 1994 .

[14]  M. Dinu,et al.  Optical performance monitoring using data stream intensity autocorrelation , 2006, Journal of Lightwave Technology.

[15]  M. Tateda,et al.  SBS threshold of a fiber with a Brillouin frequency shift distribution , 1996 .

[16]  San-Liang Lee,et al.  OSNR monitoring using double-pass filtering and dithered tunable reflector , 2004 .

[17]  L. Rapp.  Experimental investigation of signal distortions induced by cross-phase modulation combined with dispersion , 1997, IEEE Photonics Technology Letters.

[18]  A. Friesem,et al.  Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers , 1989 .

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

[20]  The effect of self-phase-modulation on the Stimulated Mandelstam-Brillouin scattering in fiber-optic communication lines , 2004 .

[21]  A. A. Friesem,et al.  Stimulated Brillouin scattering excited by two pump waves in single-mode fibers , 1987 .

[22]  J. A. Nagel,et al.  Degradations due to stimulated Brillouin scattering in multigigabit intensity-modulated fiber-optic , 1993 .

[23]  B. Eggleton,et al.  In-band OSNR and chromatic dispersion monitoring using a fibre optical parametric amplifier. , 2005, Optics express.

[24]  Q. Lin,et al.  Effects of polarization-mode dispersion on cross-phase modulation in dispersion-managed wavelength-division-multiplexed systems , 2004, Journal of Lightwave Technology.

[25]  M. Rochette,et al.  All-optical in-band OSNR monitoring at 40 Gb/s using a nonlinear optical loop mirror , 2006, IEEE Photonics Technology Letters.

[26]  T. Sugie.  Maximum repeaterless transmission of lightwave systems imposed by stimulated Brillouin scattering in fibres , 1995 .

[27]  H. Lee,et al.  Stimulated Brillouin scattering suppression using cross-phase modulation induced by an optical supervisory channel in WDM links , 2001 .

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