Multilevel coherent optical system based on Stokes parameters modulation

Betti, S.; Curti, F.; Marchis, G. De; Iannone, E.

doi:10.1109/50.56417

Cited by 75 publications

(37 citation statements)

References 13 publications

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“…M-PolSK modulation schemes can be mapped onto the Stokes space. For higher order modulation schemes, M-PolSK shows an increased efficiency with respect to the more conventional coherent modulation schemes, based on amplitude and/or phase modulation [9]. These systems must provide at the receiver end a tracking mechanism of the polarization changes due to the birefringence.…”

Section: M-polsk Modulationsmentioning

confidence: 99%

“…Equation (9) describes the spatial evolution of the Stokes vector at a fixed angular frequency. Therefore, for Equation (9), the birefringence causes random SOP fluctuations depending on the β behavior along the propagation z-axis. M-PolSK modulation formats are possible because the rate of polarization changes along the propagation in the optical fiber is very low and no significant variation can take place within a time interval comparable with the symbol time.…”

Section: M-polsk Modulationsmentioning

confidence: 99%

“…Specific receiver schemes described in [7,9] are able to track time changes of the SOP due to fiber birefringence. In the presence of slow fluctuations, the reference SOPs, which are associated with the transmitted symbols, have to be updated every T UP seconds, with 1/W T UP T SOP , where W is the signal bandwidth and T SOP is the characteristic time of the SOP fluctuations.…”

Section: M-polsk Modulationsmentioning

confidence: 99%

“…S 0 is proportional to the power of the optical field travelling along the fiber. A powerful way to visualize the SOP is represented by the Poincaré sphere of radius S 0 , in which any point represents a SOP with a different longitude (ψ) and latitude (χ) tan 2ψ = S 2 /S 1 , sin 2χ = S 3 /S 0 (8) In the Stokes space, the differential equation of motion, which describes the spatial response of the SOP to the local birefringence, is ∂S/∂z = βxS (9) where S = (S 1 , S 2 , S 3 ) is the three-component Stokes vector. Equation (9) describes the spatial evolution of the Stokes vector at a fixed angular frequency.…”

Section: M-polsk Modulationsmentioning

confidence: 99%

“…M-PolSK modulations are usually related to fixed and rigid constellations of symbols represented in the Stokes space. Symbol constellations can be regular and symmetric polyhedra [7] inscribed into the Poincaré sphere, or asymmetric polyhedra [9].…”

Section: M-polsk Modulationsmentioning

confidence: 99%

See 4 more Smart Citations

Statistical Model and Performance Analysis of a Novel Multilevel Polarization Modulation in Local “Twisted” Fibers

2017

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Transmission demand continues to grow and higher capacity optical communication systems are required to economically meet this ever-increasing need for communication services. This article expands and deepens the study of a novel optical communication system for high-capacity Local Area Networks (LANs), based on twisted optical fibers. The complete statistical behavior of this system is shown, designed for more efficient use of the fiber single-channel capacity by adopting an unconventional multilevel polarization modulation (called "bands of polarization"). Starting from simulative results, a possible reference mathematical model is proposed. Finally, the system performance is analyzed in the presence of shot-noise (coherent detection) or thermal noise (direct detection).

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Section: M-polsk Modulationsmentioning

confidence: 99%

Section: M-polsk Modulationsmentioning

confidence: 99%

Section: M-polsk Modulationsmentioning

confidence: 99%

Section: M-polsk Modulationsmentioning

confidence: 99%

Section: M-polsk Modulationsmentioning

confidence: 99%

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Statistical Model and Performance Analysis of a Novel Multilevel Polarization Modulation in Local “Twisted” Fibers

2017

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Optical DPSK/Heterodyne‐. Detection scheme using two polarization planes

Tsukamoto

Kuwano

Morinaga

1995

Electron. Comm. Jpn. Pt. I

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This paper proposes the dual polarization DPSK (DPDPSK) as an extension of the polarization modulation to the narrowband system. The basic performances are examined. First, it is shown that the proposed scheme occupies half of the signal bandwidth of the polarization modulation scheme, the receiver configuration is the same as that of the polarization modulation, and the phase noise insensitivity, which is the feature of the polarization modulation, is utilized effectively in the proposed system. Assuming a receiver with the double-filtering configuration, a theoretical analysis for the receiver error rate is presented, considering the envelope fluctuation due to the phase noise at the bandpass filter (BPF) output, as well as the additive noise suppression by the lowpass filter (LPF) in the demodulator. It is shown that the optimal BPF bandwidth exists that maximizes the receiver sensitivity. Katsutoshi Tsukamotoreceived his B.E. and M.S. degrees in 1982 and 1984, respectively, from Osaka University, where he is presently a Research Associate in the Department of Electrical Engineering. He is engaged in research on optical communication system. He is a member of IEEE. Shigeru Kuwano received his B.E. and Dr. of Eng. degrees in 1987 and 1992, respectively, from Osaka University and affiliated with NTT. Presently, he is with "IT Transmission Systems Lab., Optical Comm. Dept. He is engaged in research on optical communication. He is a member of IEEE. . He is engaged in research on radio communication systems, optical communication system, satellite communication systems, mobile communication systems, and EMC. Translator of Optical Communication System and co-author of Optical Communication Zkeory and Its Applications.

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