Acta Optica Sinica, Volume. 32, Issue 4, 406003(2012)
An Octal Modulation Scheme Based on Serial Minimum Frequency Shift Keying Modulation Format
An advanced serial minimum frequency-shift keying (SMSK) modulation scheme is proposed. SMSK signal has a narrow power spectrum, and continuous phase shift that changes π/2 twice during one symbol time, which is similar to traditional minimum frequency-shifts (MSK) signal. The principle of generating the optical SMSK signal and its implementation in octal multi-dimensional and multi-level modulation scheme is presented. Theoretical analysis is given to modulated spectra, residual dispersion tolerance, self-phase modulation (SPM) tolerance and effect of filter bandwidth on it. 120 Gb/s simulated transmission over 350 km fiber link with dispersion compensation is demonstrated.
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Tao Li, Chi Nan. An Octal Modulation Scheme Based on Serial Minimum Frequency Shift Keying Modulation Format[J]. Acta Optica Sinica, 2012, 32(4): 406003
Category: Fiber Optics and Optical Communications
Received: Nov. 9, 2011
Accepted: --
Published Online: Mar. 30, 2012
The Author Email: Li Tao (taoli522930@gmail.com)