WDM-DPSK detection by means of frequency-periodic Gaussian filtering

D’Errico, A.; Proietti, Roberto; Giorgi, L.; Contestabile, G.; Ciaramella, E.

doi:10.1049/el:20063758

Cited by 43 publications

(12 citation statements)

References 8 publications

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“…2). As expected [7], there was no power penalty for the downstream signal after 25 km SMF transmission. The upstream transmission is more critical, as the chromatic dispersion in the feeder fibre line can induce a partial phase-to-intensity conversion, so that the signal entering the remodulator at the ONU is no longer CE.…”

supporting

confidence: 82%

Symmetric 10 Gbit/s WDM-PON based on cross-wavelength reuse to avoid Rayleigh backscattering and maximise band usage

et al. 2009

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supporting

confidence: 82%

Symmetric 10 Gbit/s WDM-PON based on cross-wavelength reuse to avoid Rayleigh backscattering and maximise band usage

et al. 2009

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“…1 Schematic diagram for proposed WDM NRZ-DPSK system using continuous wave (CW) distributed feedback (DFB) lasers are combined using AWG1 (ITU grid, 100 GHz spacing) and modulated by a phase modulator (PM) at a range of different data rates. We take the advantage of a pseudo random binary sequence (PRBS) property to avoid the need for an electronic differential encoder [20].…”

Section: Simulated Results At Different Bit-ratesmentioning

confidence: 99%

Proposal for a novel and simple WDM NRZ-DPSK system

Zhang

Rosas-Fernandez

et al. 2009

Front. Optoelectron. China

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A novel and simple non-return-to-zero differential phase shift keying (NRZ-DPSK) wavelength division multiplexing (WDM) system, which can simultaneously demultiplex and demodulate multiple wavelengths, is proposed and investigated in this paper. The phase-to-intensity demodulation principle is based on detuned filtering, which is achieved by using a single commercial array waveguide grating (AWG) in our scheme. By properly choosing appropriate AWG channels at the transmitter, the AWG at the receiver can act as both the demultiplexer and the demodulator of the DPSK signals. Simulations at 10, 20, and 40 Gbit/s show good flexibility and performance for the proposed system.

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“…Fortunately, there are many good waveforms that are easily generated (see section 3.5) and a wide selection of available filters such as single and multi-pass Fabry-Perot and dielectric filters, arrayed-waveguide (AWG), diffraction [415], and fiber Bragg (FBG) grating filters [133,416], and integrated waveguide filters [417]. Many of these can be customized to achieve a desired transfer function [418].…”

Section: Waveform and Filtering Considerationsmentioning

confidence: 99%

“…Simplified multi-channel 'DPSK' receivers have also been implemented with periodic narrow band optical filtering and similar duobinary signals over dispersive channels [148,150,416,448]. While dispersion tolerant, these single-ended demodulators also incur sensitivity penalties in excess of 3 dB when compared to balanced DPSK receivers.…”

Section: Multi-wavelength Dpsk Receiver Optionsmentioning

confidence: 99%

Laser communication transmitter and receiver design

Caplan

2007

J Optic Comm Rep

118

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Free-space laser communication systems have the potential to provide flexible, high-speed connectivity suitable for long-haul intersatellite and deep-space links. For these applications, power-efficient transmitter and receiver designs are essential for cost-effective implementation. State-of-the-art designs can leverage many of the recent advances in optical communication technologies that have led to global wideband fiber-optic networks with multiple Tbit/s capacities. While spectral efficiency has long been a key design parameter in the telecommunications industry, the many THz of excess channel bandwidth in the optical regime can be used to improve receiver sensitivities where photon efficiency is a design driver. Furthermore, the combination of excess bandwidth and average-power-limited optical transmitters has led to a new paradigm in transmitter and receiver design that can extend optimized performance of a single receiver to accommodate multiple data rates. This paper discusses state-of-the-art optical transmitter and receiver designs that are particularly well suited for average-power-limited photon-starved links where channel bandwidth is readily available. For comparison, relatively simple direct-detection systems used in short terrestrial or fiber optic links are discussed, but emphasis is placed on mature high-performance photon-efficient systems and commercially available technologies suitable for operation in space. The fundamental characteristics of optical sources, modulators, amplifiers, detectors, and associated noise sources are reviewed along with some of the unique properties that distinguish laser communication systems and components from their RF counterparts. Also addressed is the interplay between modulation format, transmitter waveform, and receiver design, as well as practical tradeoffs and implementation considerations that arise from using various technologies.

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WDM-DPSK detection by means of frequency-periodic Gaussian filtering

Cited by 43 publications

References 8 publications

Symmetric 10 Gbit/s WDM-PON based on cross-wavelength reuse to avoid Rayleigh backscattering and maximise band usage

Symmetric 10 Gbit/s WDM-PON based on cross-wavelength reuse to avoid Rayleigh backscattering and maximise band usage

Proposal for a novel and simple WDM NRZ-DPSK system

Laser communication transmitter and receiver design

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