1024 QAM (60 Gbit/s) single-carrier coherent optical transmission over 150 km

Koizumi, Yoshiko; Toyoda, Kazushi; Yoshida, Masato

doi:10.1364/oe.20.012508

Cited by 102 publications

(28 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past, most efforts in increasing the SE were concentrated on reducing guard bands (GB) in wavelength division multiplexed (WDM) schemes and on applying advanced modulation formats such as M-ary quadrature amplitude modulation (QAM) [1,2]. Pulse-shaping as a form of digital signal processing (DSP) can help increasing the spectral efficiency (SE) further, .As an example, orthogonal frequency division multiplexing (OFDM) [3] has emerged as a promising candidate for both, long-haul and access networks.…”

Section: Introductionmentioning

confidence: 99%

Full flex-grid asynchronous multiplexing demonstrated with Nyquist pulse-shaping

Schindler¹,

Schmogrow²,

Wolf³

et al. 2014

Opt. Express

View full text Add to dashboard Cite

Abstract:We demonstrate full flex-grid operation with Nyquist frequency division multiplexing. The technique supports high spectral efficiency, asynchronous operation of channels, variable channel loading with different modulation formats and dynamic bandwidth allocation. Data from different sources with different bit and symbol rates are encoded onto electrical Nyquist pulses with different electrical subcarrier frequencies, and then transmitted optically. We give details on the transceiver design with digital signal processing and investigate the implementation penalty as a function of several design parameters such as limited filter length and effective number of bits. Finally, experiments are performed for receivers with direct detection, intradyne and remote heterodyne reception. Leuthold, "The input power dynamic range of a semiconductor optical amplifier and its relevance for access network applications," IEEE Photon.

show abstract

Section: Introductionmentioning

confidence: 99%

Full flex-grid asynchronous multiplexing demonstrated with Nyquist pulse-shaping

Schindler¹,

Schmogrow²,

Wolf³

et al. 2014

Opt. Express

View full text Add to dashboard Cite

show abstract

“…In order to meet the ever increasing demand of capacity requirements, increase in SE of the transmission system can be a possible solution. Most recently advanced modulation formats, M-quadrature amplitude modulation (QAM) [M=4, 16,32,64,256 and 1024] and orthogonal frequency-division multiplexing (OFDM) have been investigated in order to increase the SE [5,[7][8][9]. However, this high SE is obtained at the expense of complicated transmitter structures, i.e.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of correlative coding and DP-16QAM n-channel 112Gbit/s coherent transmission: digital non-linear compensation perspective

Asif¹,

Lin²,

Holtmannspoetter³

et al. 2013

Opt. Express

View full text Add to dashboard Cite

Abstract:We numerically report on the complexity reduction of digital backward propagation (DBP) by utilizing correlative encoded transmission (dual-polarization quadrature duobinary) at a bit-rate of 112Gbit/s over 1640km fibe link. The single channel (N=1) and multi-channel (N=10) transmission performances are compared in this paper. In case of multichannel system, 10 transmitters are multiplexed with 25GHz channel spacing. The fibe link consists of Large A e f f Pure-Silica core fibe with 20 spans of 82km each. No in-line optical dispersion compensator is employed in the link. The system performances are evaluated by monitoring the bit-error-ratio and the forward error correction limit corresponds to bit-error-ratio of 3.8x10 −3 . The DBP algorithm is implemented after the coherent detection and is based on the logarithmic step-size based splitstep Fourier method. The results depict that dual-polarization quadrature duobinary can be used to transmit 112Gbit/s signals with an spectral efficien y of 4-b/s/Hz, but at the same time has a higher tolerance to nonlinear transmission impairments. By utilizing dual-polarization quadrature duobinary modulation, comparative system performance with respect to dual-polarization 16-quadrature amplitude modulation transmission can be achieved with 60% less computations and with a step-size of 205km. B. Matthew, and S. K. Mishra, "Transmission of 32-Tb/s capacity over 580 km Using RZ-shaped PDM-8QAM modulation format and cascaded Mmltimodulus blind equalization algorithm," J. Lightwave Technol. 28(4), 456-465 (2010).

show abstract

“…of transmitting data at the rate of tera-bits per second (1 Tbit/s) very soon [5][6][7]. These data rates can be achieved by implementing advanced modulation formats with coherent detection schemes.…”

mentioning

confidence: 99%

Hybrid opto-digital signal processing in 112 Gbit/s DP-16QAM and DP-QDB transmission for long-haul large- $$\hbox {A}_\mathrm{eff}$$ A eff pure-silica-core fiber links

2015

View full text Add to dashboard Cite

By means of numerical simulations, we demonstrated that all-optical signal processing methods (XPMsuppressor module and in-line nonlinear equalization) significantly increase the system performance of digital nonlinear compensation (digital backward propagation) and improve the system performance in five-channel 112 Gbit/s DP-16QAM and DP-QDB transmission over 2400 km largeeffective-area pure-silica-core fiber (LA eff -PSCF). The system performance is quantified with the help of Q-factor (dB) for both dispersion-managed and nondispersion-managed fiber links.

show abstract

1024 QAM (60 Gbit/s) single-carrier coherent optical transmission over 150 km

Cited by 102 publications

References 8 publications

Full flex-grid asynchronous multiplexing demonstrated with Nyquist pulse-shaping

Full flex-grid asynchronous multiplexing demonstrated with Nyquist pulse-shaping

Evaluation of correlative coding and DP-16QAM n-channel 112Gbit/s coherent transmission: digital non-linear compensation perspective

Hybrid opto-digital signal processing in 112 Gbit/s DP-16QAM and DP-QDB transmission for long-haul large- $$\hbox {A}_\mathrm{eff}$$ A eff pure-silica-core fiber links

Contact Info

Product

Resources

About