Photonic MSK transmitter models using linear and nonlinear phase shaping for noncoherent long-haul optical transmission

We propose two novel transmitter configurations for generation of linear and non-linear phase modulated optical minimum shift keying (MSK) signals based on approaches of continuous phase frequency shift keying (CPFSK) and I-Q component structure of offset/staggered DQPSK formats. The precoder for I-Q optical MSK structure is derived. The direct detection of optical ligtwave is utilized with implementation of the well-known differential non-coherent balanced receivers. Simulated spectral characteristics and dispersion tolerance to 40 Gb/s transmission are presented and compared to those of ASK and DPSK counterparts.