论文信息 - Spectrally efficient slow light using multilevel phase-modulated formats.

Spectrally efficient slow light using multilevel phase-modulated formats.

A phase-preserving and spectrally efficient slow-light scheme has been proposed and demonstrated by utilizing advanced multilevel phase-modulated formats. A 60 ps symbol delay with error-free demodulation of both I and Q channels for 10 Gbit/s return-to-zero differential-quadrature-phase-shift-keyed (DQPSK) signals via a broadband stimulated Brillouin scattering-based slow-light medium is achieved experimentally. Simulation results on 20 Gbit/s DQPSK and 30 Gbit/s D8PSK propose to transmit very high spectrally efficient multilevel formats through a bandwidth-limited slow-light element.

[1] Zhang Bo,et al. A Single Slow-Light Element for Independent Delay Control and Synchronization on Multiple Gb/s Data Channels , 2007, IEEE Photonics Technology Letters.

[2] Bo Zhang,et al. Slow light on Gbit/s differential-phase-shift-keying signals. , 2007, Optics express.

[3] Changyuan Yu,et al. Data pulse distortion induced by a slow-light tunable delay line in optical fiber. , 2007, Optics letters.

[4] L-S Yan,et al. Continuously-tunable, bit-rate variable OTDM using broadband SBS slow-light delay line. , 2007, Optics express.

[5] A.E. Willner,et al. Optical Signal Processing Using Tunable Delay Elements Based on Slow Light , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[6] Guifang Li,et al. Theoretical sensitivity of direct-detection multilevel modulation formats for high spectral efficiency optical communications , 2006, IEEE Journal of Selected Topics in Quantum Electronics.

[7] Alan E. Willner,et al. Broadband SBS Slow Light in an Optical Fiber , 2007, OFC 2007.

[8] R.-J. Essiambre,et al. Advanced Modulation Formats for High-Capacity Optical Transport Networks , 2006, Journal of Lightwave Technology.