Experimental demonstration of soliton data transmission over unlimited distances with soliton control in time and frequency domains

Nakazawa, Masataka; Suzuki, Kazunori; Yamada, E.; Kubota, Hirokazu; Kimura, Yasuo; Takaya, Masaaki

doi:10.1364/ofc.1993.pd7

Cited by 6 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The BER characteristics at a bit rate of 10 Gbit/s after transmissions of 10 4 , 2 ϫ10 5 , and 1ϫ10 6 km were the same, which means that there was no degradation at all in the data signal after trans- mission over 1 mil km. 58,66 After a 1 mil km transmission, the eye was clearly open and this suggests that Gordon-Haus jitter has been eliminated by soliton control. These results indicate that soliton transmission control is a very powerful technique for sending data over long distances.…”

Section: B 10 Gbitõs Soliton Transmission Over Unlimited Distancesmentioning

confidence: 99%

See 1 more Smart Citation

Recent progress in soliton transmission technology

Nakazawa

Kubota

Suzuki

et al. 2000

Chaos: An Interdisciplinary Journal of Nonlinear Science

100

View full text Add to dashboard Cite

Recent progress on time-division multiplexed (TDM) and wavelength-division multiplexed (WDM) soliton transmission is described, in which dispersion management plays an important role in increasing the power margin and the dispersion tolerance. The characteristics of the dispersion-managed soliton are compared with those of return to zero and nonreturn to zero pulses. With a small dispersion swing, the system can still be described as an average soliton using the nonlinear Schrodinger equation, while with a large dispersion swing, the solitonlike steady-state pulse becomes a chirped Gaussian pulse, in which the governing equation is closer to a linear Schrodinger equation with a parabolic potential well. We describe an in-line modulation scheme for up to 80 Gbit/s per channel and its two channel WDM transmission over 10 000 km. Finally, we describe 640 Gbit/s (40 Gbit/sx16 channels) WDM soliton transmission over 1000 km with a dispersion-managed single-mode fiber. (c) 2000 American Institute of Physics.

show abstract

Section: B 10 Gbitõs Soliton Transmission Over Unlimited Distancesmentioning

confidence: 99%

“…19. 66 The soliton source was a gain-switched DFB LD operating at 1.552 m which was converted to a transform-limited 30 ps pulse with a narrowband optical filter. The soliton data were coded using a Mach-Zehnder LN modulator with a data speed of 10 Gbit/s.…”

Section: B 10 Gbitõs Soliton Transmission Over Unlimited Distancesmentioning

confidence: 99%

Recent progress in soliton transmission technology

Nakazawa

Kubota

Suzuki

et al. 2000

Chaos: An Interdisciplinary Journal of Nonlinear Science

100

View full text Add to dashboard Cite

show abstract

“…To avoid these problems, here we have proposed a packet format where the clock, the address and the payloads all have the same intensity, polarization, width and wavelength. This is achieved by employing a highly stable single light source such as gain-switch distribute feedback laser (DFB) laser or harmonic mode-locking of Erbium-doped fibre [19]- [21], the output of which is split into a number channels n by a 1  n optical splitter. A number of channels dedicated for data are modulated (using external modulators) with the electrical data signals and are combined with the address and clock channels using OFDLs.…”

Section: Self-synchronization Schemementioning

confidence: 99%

Simulation of 1×2 OTDM router employing symmetric Mach–Zehnder switches

Ghassemlooy

Ngah

2005

IEE Proc., Circuits Devices Syst.

View full text Add to dashboard Cite

In high-speed all optical time division multiplexed (OTDM) routers it is desirable to carry out data routing, switching, clock recovery and synchronisation in the optical domain in order to avoid the bottleneck due to the optoelectronics conversion. In this paper we propose an optical switch based on all-optical symmetric Mach-Zehnder (SMZ) and investigate its characteristics. The proposed switch is being used as a building block for a simple 1 x 2 OTDM router for asynchronous OTDM packet routing, where clock recovery, the address recognition and the payload routing are all carried out in the optical domain. Simulation and numerical results demonstrate that clock recovery, address recognition and payload routing is possible with small amount of cross talk. Also presented are the simulated results for the bit error rate (BER) performances for the 1  2 router. For BER of 10 -9 the receiver sensitivity is -26 dB compared with the baseline detection without a router of -38 dB.The router proposed display a great potential for use in the ultra-high speed OTDM networks. Index Terms-Router, Symmetric Mach-Zehnder, optical switches, semiconductor amplifiers. Different wavelengths are allocated to the clock and payload in the WDM scheme [2]. This technique is only practical for predetermined path lengths between nodes in single hop networks such as point-to-point links or broadcast-andselect star networks. The relative delay between the clock and payload will be random in asynchronous packet-switched since the optical path length through which a packet travels is non-deterministic. Orthogonally polarized clock synchronization are more suitable for small size networks [3], whereas in larger networks correct polarization maintenance through the network is rather difficult due to the fibre polarization mode dispersion and other non-linear effects. Although synchronization based on transmission of high intensity optical clock signal offers simplicity, but maintaining the clock position and its intensity level over a long transmission span is a problem due to the impact of fibre non-linearities [4].Multiplexing of the clock signal in the time domain with the same intensity and wavelength as the data signal is the preferred option. At the receiver clock extraction from the payload is carried out by employing all-optical switching device combined with the optical feedback [1]. In [1] all-optical switches based on the terahertz optical asymmetric

show abstract

“…For pulses with fixed input energy E and random arrival time t in 0 Ž Ž. 2 . normal distribution p t with variance , the energy moments at the IM output 0 t are given by …”

Section: Effect Of Timing Jitter To Intensity Noise Conversion Bmentioning

confidence: 99%