Single Wavelength Channel 10.2 Tb/s TDM-Data Capacity using 16-QAM and Coherent Detection

Richter, Thomas; Palushani, Evarist; Schmidt‐Langhorst, Carsten; Nölle, Markus; Ludwig, R.; Fischer, Johannes; Schubert, C.

doi:10.1364/nfoec.2011.pdpa9

Cited by 30 publications

(26 citation statements)

References 3 publications

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“…With OTDM, data rates of up to 10.2 Tbit/s were obtained within an optical bandwidth of roughly 30 nm or 3.75 THz. This corresponds to a net spectral efficiency of 2.6 bit/s/Hz [3]. With TDM, transmission at 10.2 Tbit/s over 29 km of dispersion-managed fiber has been demonstrated.…”

Section: Introductionmentioning

confidence: 96%

“…uper-channels for multi-Tbit/s transmission are envisioned to play an important role in future optical networks [1]. Such channels typically consist of one carrier or several frequency-locked carriers onto which data are encoded [2][3][4][5]. As cost and power consumption are important issues [6][7][8], a reduced component count is desirable.…”

Section: Introductionmentioning

confidence: 99%

“…Up to the year 2009, single-laser Tbit/s systems were mostly implemented using optical time division multiplexing (OTDM) [2,3]. With OTDM, data rates of up to 10.2 Tbit/s were obtained within an optical bandwidth of roughly 30 nm or 3.75 THz.…”

Section: Introductionmentioning

confidence: 99%

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Single-Laser 325 Tbit/s Nyquist WDM Transmission

Hillerkuss

Schmogrow

Meyer

et al. 2012

J. Opt. Commun. Netw.

140

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Abstract-We demonstrate single laser 32.5 Tbit/s 16QAM Nyquist WDM transmission over a total length of 227 km of SMF-28 without optical dispersion compensation. A number of 325 optical carriers are derived from a single laser and encoded with dualpolarization 16QAM data using sinc-shaped Nyquist pulses. As we use no guard bands, the carriers have a spacing of 12.5 GHz equal to the symbol rate or Nyquist bandwidth of the data. We achieve a net spectral efficiency of 6.4 bit/s/Hz using a softwaredefined transmitter, which generates the electric drive-signals for the electro-optic modulator in realtime.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Single-Laser 325 Tbit/s Nyquist WDM Transmission

Hillerkuss

Schmogrow

Meyer

et al. 2012

J. Opt. Commun. Netw.

140

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show abstract

“…Among them, 16quadrature amplitude modulation (16QAM) formats are one of the most promising techniques to achieve high spectral efficiency and to reach high single-channel bit rate [3], [4]. However, conventional on-off-keying (OOK) format will continue to be used in metro area network (MAN) and access network due to its simple transceiver configuration and cost effectiveness.…”

Section: Introductionmentioning

confidence: 99%

All-optical OOK-to-16QAM format conversion by using SOA-MZI wavelength converters

Mishina

Kono

Maruta

et al. 2012

2012 17th Opto-Electronics and Communications Conference

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“…At the coherent receiver, one free-run continuous wave (CW) local oscillator (LO) laser working at the central frequency of the comb is used for coherent homodyne beating. As mentioned before, the full-band coherent receiver is simpler compared with the typical OTDM receiver reported in29303132333435. The simpler receiver setup mainly shows in two aspects: the reduced number of receivers and the free run LO.…”

mentioning

confidence: 99%

High Speed All Optical Nyquist Signal Generation and Full-band Coherent Detection

Zhang

Fang

et al. 2014

Sci Rep

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Spectrum efficient data transmission is of key interest for high capacity optical communication systems considering the limited available bandwidth. Transmission of the high speed signal with higher-order modulation formats within the Nyquist bandwidth using coherent detection brings attractive performance advantages. However, high speed Nyquist signal generation with high order modulation formats is challenging. Electrical Nyquist pulse generation is restricted by the limited sampling rate and processor capacities of digital-to-analog convertor devices, while the optical Nyquist signals can provide a much higher symbol rate using time domain multiplexing method. However, most optical Nyquist signals are based on direct detection with simple modulation formats. Here we report the first experimental demonstration of high speed all optical Nyquist signal generation based on Sinc-shaped pulse generation and time-division multiplexing with high level modulation format and full-band coherent detection. Our experiments demonstrate a highly flexible and compatible all optical high speed Nyquist signal generation and detection scheme for future fiber communication systems.

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Single Wavelength Channel 10.2 Tb/s TDM-Data Capacity using 16-QAM and Coherent Detection

Abstract: We present a serial 10.2-Tb/s transmission-system using a 1.28-TBd RZ-16-QAM signal, polarization multiplexing and ultra-fast coherent demultiplexing. Considering FECoverhead, we achieve a record error-free net data rate of 9.5-Tb/s and transmission over 29-km.

Cited by 30 publications

References 3 publications

Single-Laser 325 Tbit/s Nyquist WDM Transmission

Single-Laser 325 Tbit/s Nyquist WDM Transmission

All-optical OOK-to-16QAM format conversion by using SOA-MZI wavelength converters

High Speed All Optical Nyquist Signal Generation and Full-band Coherent Detection

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