Comparison of span configurations of Raman-amplified dispersion-managed fibers

Hainberger, Rainer; Hoshida, Takeshi; Terahara, T.; Onaka, H.

doi:10.1109/68.992581

Cited by 29 publications

(19 citation statements)

References 6 publications

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“…Here DRB is assumed to be an incoherent, ASE-like noise within a receiver bandwidth, in accordance with Ref. 15. Hence the output OSNR including DRB noise for types 1 and 2 can easily be written as…”

Section: Configuration and Theory Modelmentioning

confidence: 99%

Bidirectionally dual-order pumped Raman amplifiers

2005

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A theoretical investigation of bidirectionally dual-order pumped distributed Raman amplifiers is presented in detail, and comparisons with other Raman amplification schemes, i.e., bidirectional first-order pumping and Raman-plus-erbium-doped fiber hybrid amplification, are carried out at identical nonlinear phase shifts. The results show that symmetric bidirectional dual-order pumping can achieve the best optical signal-to-noise ratio performance by appropriate choice of the second-order pump wavelength and second-to-first-order pump power ratio for both short-and long-span conditions.

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Section: Configuration and Theory Modelmentioning

confidence: 99%

Bidirectionally dual-order pumped Raman amplifiers

2005

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“…In commercially deployed systems, localized dispersion compensation is implemented by inserting reels of DCFs in huts, periodically located along a transmission line. In contrast, diffused dispersion compensation is generally implemented by using advanced transmission fibers that are composed of fiber segments with opposite-sign dispersion [26][27][28][29][30][31][32][33][34][35][36][37]. Such fibers are referred to as dispersion-managed fibers (DMFs) and cables containing such fibers are called dispersion-managed cables (DMCs).…”

Section: System Layouts and Classificationmentioning

confidence: 99%

Impact of DCF properties on system design

Essiambre¹,

Winzer²,

Grosz

2006

J Optic Comm Rep

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“…In addition to offering features such as noise reduction and the possibility of operating in any spectral band for which a suitable pump can be found, distributed amplification allows to manage signal power evolution along the transmission span [6,7]. The use of bi-directional pumping schemes [8] and the possibility of performing effective core area management (employing dispersion-managed fiber) [9,10], have been studied with the goal of distributing the gain more evenly along the transmission line. Higher-order pumping structures [11] can also be used to reduce the variation of the effective gain-loss coefficient along the propagation.…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of ultralong Raman laser links for optical signal transmission

Ania-Castañón¹

2009

SPIE Proceedings

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Ultra-long Raman fiber lasers (URFL) have shown great potential in applications including supercontinuum generation, multiwavelength signal processing and quasi-lossless transmission. In this manuscript we focus our attention on the latter, briefly reviewing some of the available tools for the study and numerical optimization of ultra-long laser cavity transmission links reliant upon standard single-mode optical fiber. A typical URFL makes efficient second-order distributed Raman amplification possible from single-wavelength pumps, through the generation of a Stokes wave that is trapped in the transmission link itself by fibre grating reflectors. By adjusting the pump power injected into the active link, it is possible to precisely compensate for attenuation locally all across the transmission length, achieving close-toideal gain distribution and virtual transparency in the fiber. The efficiency with which signal excursion (and ASE noise generation) can be minimised depends on factors such as link length, pump depletion, gratings reflectivity and pumping symmetry. As we will show, numerical simulation can be used to find the optimal cavity design parametres that maximize transmission performance in a variety of circumstances.

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Comparison of span configurations of Raman-amplified dispersion-managed fibers

Cited by 29 publications

References 6 publications

Bidirectionally dual-order pumped Raman amplifiers

Bidirectionally dual-order pumped Raman amplifiers

Impact of DCF properties on system design

Design and simulation of ultralong Raman laser links for optical signal transmission

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