A novel design of a dispersion compensating fiber

Thyagarajan, K.; Varshney, R. K.; Palai, P.; Ghatak, Ajoy; Goyal, I.C.

doi:10.1109/68.541566

Cited by 149 publications

(77 citation statements)

References 8 publications

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“…In a conventional silica optical fiber value of dispersion increases with wavelength therefore different channels suffer from different broadening. Dispersion compensators can be the alternative for reshaping the signal after a suitable length of the fiber [3][4][5][6][7][8][9][10]. But in optical network the placement of dispersion compensating module increases the cost of the system, loss added by dispersion compensating module increases effective noise figure of the system and different optical channels in a fiber see different amount of accumulated dispersion.…”

Section: Introductionmentioning

confidence: 99%

Segmented-Core Single Mode Optical Fiber With Ultra-Large-Effective-Area, Low Dispersion Slope and Flattened Dispersion for DWDM Optical Communication Systems

Hooda¹,

Rastogi²

2013

PIER B

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Abstract-In this paper we present designs of fibers having non-zero positive, non-zero negative and near-zero ultra-flattened dispersion with small dispersion slope and ultra-large effective area over a wide spectral range. The designs consist of a concentric multilayer segmented core followed by a trench assisted cladding and a thin secondary core. The central segmented core helps in maintaining desired dispersion over a wide range of wavelength. The second core of the fiber helps in achieving ultra-large effective area and trench assisted cladding reduces the bending loss. The designs of the fiber have been analyzed by using the transfer matrix method. For positive non-zero dispersion flattened fiber we have optimized dispersion near +4.5 ps/km/nm in the wavelength range 1.46-1.65 µm. Maximum value of dispersion slope of the fiber in above mentioned wavelength range is 0.026 ps/km/nm 2 . In the design of negative non-zero dispersion flattened fiber, dispersion has been achieved near −6 ps/km/nm in the spectral range of 1.33-1.56 µm and maximum value of dispersion slope is 0.048 ps/km/nm 2 . Dispersion and dispersion slope of near zero dispersion flattened fiber lie in the range [0.0039-0.520] ps/km/nm and [(0.0004)-(0.0365)] ps/km/nm 2 respectively in the spectral range of 1.460-1.625 µm. The near zero dispersion flattened fiber has an ultra-high effective area ranging from 114 µm 2 to 325.95 µm 2 in the aforementioned wavelength range, which covers the entire S+C+L-band. These values of mode area are noticeably higher than those reported in literature for flattened dispersion fibers with large mode area. Designed fiber shows very small bending loss. We report breakthrough in the mode area of the single mode optical fiber with ultra flattened dispersion and low dispersion slope.

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Section: Introductionmentioning

confidence: 99%

Segmented-Core Single Mode Optical Fiber With Ultra-Large-Effective-Area, Low Dispersion Slope and Flattened Dispersion for DWDM Optical Communication Systems

Hooda¹,

Rastogi²

2013

PIER B

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“…The first conventional DCCF with D of -100 ps/km/nm around1.55 µm was proposed in document [2]. In [3][4][5][6], D were attained -900 ps/km/nm, -1800 ps/km/nm, -5100 ps/km/nm respectively at 1.55 µm by optimizing structural parameters. In recent years, along with the emergence of PCF, a novel type of DCCF based on PCF is appeared.…”

Section: Analysis Methods and Structure Designmentioning

confidence: 99%

“…To obtain a very high dispersion, lots of designs have been proposed, such as W-model, multi-cladding model, dualconcentric-core model [2][3][4][5][6][7][8][9][10][11][12] and so on. However, the dualconcentric-core model does better than the others.…”

Section: Analysis Methods and Structure Designmentioning

confidence: 99%

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Study on dual-concentric-core dispersion compensation photonic crystal fiber

Song¹,

Hou²,

Zhao³

et al. 2009

Braz. J. Phys.

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The dual-concentric-core photonic crystal fiber composed of pure silica and air is proposed in this paper. Around 1.55 µm, it exhibits a negative chromatic dispersion as high as -5850 ps/km/nm. Based on multipole method, a systemic and in-depth simulation is realized to investigate the mode characteristics. The explanations to propagation states of the fundamental mode and the second mode are given elaborately. Finally, the variation of structural parameters is investigated to evaluate the tolerance of the fabrication. As a result, the designed fiber can be fabricated easily.

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“…An optical transmission system suffers from an inherent problem of dispersion. This is the main concern for a optical communication network [1]. Dispersions of transmitted optical signal cause distortion for both digital as well as analog signal.…”

Section: Introductionmentioning

confidence: 99%

A Novel Architecture to Reduce Dispersion in Fiber by Using Pre, Post and Symmetrical DCF Methods

Nerkar¹,

Kadu

Labade³

2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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Dispersion is one of the basic problems in the optical fiber communication. Chromatic dispersion is one of this type of dispersion. Nowadays we require high data transmission without any substantial loss in a communication system, so optical communication serves as a better choice for high data rate transmission. However it has a dispersion problem. To overcome dispersion in an optical communication system, we proposed a novel type of method to reduce chromatics dispersion in this paper. The proposed method is experimentally implemented and analysed. The eye diagram analysis test confirms achievement of complete reduction of chromatic dispersion in the fiber at long distance communication. Optisystem version 12.0.2 was used as a software tool for experimental validation of proposed method. Optical fiber system implemented in this experiment was designed for bit rate 2.5Gbps at wavelength 1550nm.

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A novel design of a dispersion compensating fiber

Cited by 149 publications

References 8 publications

Segmented-Core Single Mode Optical Fiber With Ultra-Large-Effective-Area, Low Dispersion Slope and Flattened Dispersion for DWDM Optical Communication Systems

Segmented-Core Single Mode Optical Fiber With Ultra-Large-Effective-Area, Low Dispersion Slope and Flattened Dispersion for DWDM Optical Communication Systems

Study on dual-concentric-core dispersion compensation photonic crystal fiber

A Novel Architecture to Reduce Dispersion in Fiber by Using Pre, Post and Symmetrical DCF Methods

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