Single channel 400 Gbit/s time-division-multiplexed transmission of 0.98 ps pulses over 40 km employing dispersion slope compensation

Kawanishi, S.; Takara, H.; Morioka, Toshio; Kamatani, O.; Takiguchi, K.; Kitoh, T.; Saruwatari, M.

doi:10.1049/el:19960609

Cited by 91 publications

(15 citation statements)

References 8 publications

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“…For long distance communication, wavelength division multiplexing (WDM) and time-division multiplexing (TDM) have been extensively explored and have shown impressive performance results [1]- [6]. For local area network (LAN) applications, optical code-division multiple-access (CDMA) communications systems [7]- [20] are also being investigated, in addition to the more traditional WDM and TDM schemes.…”

Section: Introductionmentioning

confidence: 99%

A femtosecond code-division multiple-access communication system test bed

Sardesai

Chang

Weiner

1998

J. Lightwave Technol.

160

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Abstract-This paper reports comprehensive experimental results on a femtosecond code-division multiple-access (CDMA) communication system test bed operating over optical fiber in the 1.5 m communication band. Our test bed integrates together several novel subsystems, including low-loss fiber-pigtailed pulse shapers for encoding-decoding, use of dispersion equalizing fibers in dispersion compensated links for femtosecond pulse transmission and also in femtosecond chirped pulse amplification (CPA) erbium doped fiber amplifiers (EDFA's), and high-contrast nonlinear fiber-optic thresholders. The individual subsystems are described, and single-user system level experimental results demonstrating the ability to transmit spectrally encoded femtosecond pulses over a 2.5-km dispersion compensated fiber link followed by decoding and high contrast nonlinear thresholding are presented.

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Section: Introductionmentioning

confidence: 99%

A femtosecond code-division multiple-access communication system test bed

Sardesai

Chang

Weiner

1998

J. Lightwave Technol.

160

View full text Add to dashboard Cite

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“…Single channel OTDM transmission experiments over 100 Gbit/s have been demonstrated since 1993 when 100 Gbit/s (50 Gbit/s OTDM × 2PDM) signals were first transmitted over a 50-km DSF, [24] followed by 100 Gbit/s, 200-500 km transmission, [25,26] 200 Gbit/s, 100 km transmission, [27] 400 Gbit/s, 40 km transmission. [28] The year 2000 was an epoch-making one when a single-channel 1.28-Tbit/s transmission over 72 km was achieved by combining the ultrafast optical technologies and a highly sophisticated dispersion compensation technique. [56] Field demonstration of 160 Gbit/s transmission has also been demonstrated testing the system stability, monitoring and adaptive dispersion compensation schemes.…”

Section: Large-capacity Otdm/wdm Transmissionmentioning

confidence: 99%

Ultrafast optical technologies for large-capacity TDM/WDM photonic networks

Morioka

2007

J Optic Comm Rep

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As the Internet data traffic increases explosively, the optical networks will evolve into "photonic networks", in which "wavelength" label is used to route largecapacity optical signals at optical path cross connect (OPXCs) nodes.[34] Further development of ultrafast all-optical processing technologies enables us to further upgrade the photonic networks into those with much more flexibility and higher transparency, where ultrafast optical signals of any bit rates (2.5, 10, 40, 100, 160 G/ch) and frame/modulation formats (GbE, 10 GbE, SDH, OTN/ NRZ, RZ, CS-RZ, RZ-DPSK, etc.) are processed and transmitted all-optically without optical-electrical-optical (O-E-O) conversion from end-to-end.

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“…Moreover, more than 1000 optical frequency with 12.5 GHz spacing from a single SC source has been reported . SC pulse generation is applicable for OTDM systems because less than 1-ps pulses at arbitrary wavelengths can be attained by merely filtering the SC spectrum, and single channel 200 and 400 Gbs −1 OTDM transmission experiments using short pulses generated by SC in the fiber were successfully demonstrated (Kawanishi et al , 1996. With nonlinear dispersion-shifted fibers or dispersion-flattened fibers, lengths of these fibers spanning from several hundreds meters to a few kilometers are required, which compromise their practicality.…”

Section: Sources For Wdm/otdm Transmittersmentioning

confidence: 99%

Applications of Nonlinear Effects in Highly Nonlinear Photonic Crystal Fiber to Optical Communications

Sang

Chu

2005

Opt Quant Electron

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Optical and Quantum Electronics (2005) 37:965-994 © Springer 2005Applications of nonlinear effects in highly nonlinear photonic crystal fiber to optical communications Abstract. Unique dispersion characteristics and enhanced nonlinearity make the small-core photonic crystal fiber (PCF) an ideal candidate for nonlinear optical devices to telecommunication applications. Some technical reasons behind great research interest of highly nonlinear PCFs in optical communication components are reviewed. Nonlinear effects in highly nonlinear PCFs and their research progress are presented. Several typical applications including WDM sources, optical amplification, optical switching, wavelength conversion, optical regeneration and all-optical demultiplexing etc are introduced, together with state-of-the art performances. Some new possible applications and future prospects are discussed.Key words: nonlinear optics, optical fiber communication, nonlinear effects, optical fiber devices, photonic crystal fiber the core is hollow. This hollow core PCF has an operating principle that is significantly different from the solid core index guided fiber, which exploits the photonic band gap effect to guide light. PCFs can be designed to satisfy many specific applications, for example: to be single mode over an extremely broad wavelength range (Birks et al. 1997); to support larger or smaller mode field diameters (Knight et al. 1998;Broderick et al. 1999); to meet specific dispersion requirements ; to increase or decrease nonlinearity (Finazzi et al. 2003;; and to be highly birefringent resulting in improved polarization control (Hansen et al. 2001;Orgigosa-Blanch et al. 2004) . For applications of typical nonlinear characteristics of PCF to optical communications, the small solid core PCFs with high nonlinearity are preferred, and we will discuss them here. Due to the high index difference between silica core and air hole cladding, these PCFs allow much stronger mode confinement, and thereby much higher nonlinearities (Finazzi et al. 2003). In addition, the PCFs allow a more flexible tailoring of the dispersion properties , which are crucial for many applications of nonlinear effects. Nonlinear effects in the PCF are currently a research topic of great interest, and great progress has been made in the design and fabrication of PCFs. The noticeably increased nonlinear response in the PCF appears as a combination of very strong mode confinement and altered dispersion properties. Dispersion of such fibers is tailored by changing their core-cladding geometry, while a strong light-field confinement is due to the high refractive-index step between the core and the holey cladding, which would allow nonlinear optical interactions to be enhanced without increasing the energy of light. This makes it possible to compact and cost-effective telecommunication devices with short fibers and relatively low cost light sources, which are the principal drawbacks of previously demonstrated fiber-based nonlinear optical devices.Recently, PCFs with high nonli...

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Single channel 400 Gbit/s time-division-multiplexed transmission of 0.98 ps pulses over 40 km employing dispersion slope compensation

Cited by 91 publications

References 8 publications

A femtosecond code-division multiple-access communication system test bed

A femtosecond code-division multiple-access communication system test bed

Ultrafast optical technologies for large-capacity TDM/WDM photonic networks

Applications of Nonlinear Effects in Highly Nonlinear Photonic Crystal Fiber to Optical Communications

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