Prechirp technique for dispersion compensation for a high-speed long-span transmission

Saito, Tomoki; Henmi, N.; Fujita, Shin; Yamaguchi, M.; Shikada, M.

doi:10.1109/68.68053

Cited by 36 publications

(16 citation statements)

References 11 publications

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“…As shown, when the cavity has a bandwidth of 500 GHz (4 nm), the cavity has little effect on dispersion monitoring performance, as the bandwidth is larger than the spectral width of the incident signal. The generated photocurrent is therefore inversely proportional to the incident pulsewidth and obeys (1). However, as the bandwidth of the cavity approaches the spectral width of the incident signal, the cavity effect results in the bending of the simulated curve [as shown in Fig.…”

Section: A Cavity Effectmentioning

confidence: 99%

“…Since Gaussian pulses maintain their shape during propagation through a dispersive fiber, the TPA response given by (1) can be simplified to an inverse pulsewidth relationship for a wide bandwidth cavity. From Fig.…”

Section: Pulse Shape Influence On the Monitoring Characteristicmentioning

confidence: 99%

“…According to the average response of any second-order nonlinear detector, the photocurrent generated for incident periodic sequence of pulses can be given by [11] where (1) and are the average power, time-varying power envelope and generalized duty cycle of the incident optical signal. The use of the brackets in (1) refers to the fact that the power envelope has been time averaged, while and are the incident pulsewidth and the period of the signal, and is a weight factor associated with the incident pulse shape.…”

Section: Theoretical Model Describing Tpa Based Chromatic Dispersmentioning

confidence: 99%

“…A number of different schemes, such as pre-chirp [1] and utilizing a modulation format with a narrow optical spectrum (duobinary [2]), have been introduced to improve system tolerance to CD. However, even by employing such techniques, there still exists a need to compensate for the amount of accumulated dispersion encountered within the telecommunications link.…”

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confidence: 99%

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Chromatic Dispersion Monitoring for High-Speed WDM Systems Using Two-Photon Absorption in a Semiconductor Microcavity

Bondarczuk¹,

Maguire²,

Reid³

et al. 2009

IEEE J. Quantum Electron.

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Abstract-This paper presents a theoretical and experimental investigation into the use of a two-photon absorption (TPA) photodetector for use in chromatic dispersion (CD) monitoring in highspeed, WDM network. In order to overcome the inefficiency associated with the nonlinear optical-to-electrical TPA process, a microcavity structure is employed. An interesting feature of such a solution is the fact that the microcavity enhances only a narrow wavelength range determined by device design and angle at which the signal enters the device. Thus, a single device can be used to monitor a number of different wavelength channels without the need for additional external filters. When using a nonlinear photodetector, the photocurrent generated for Gaussian pulses is inversely related to the pulsewidth. However, when using a microcavity structure, the cavity bandwidth also needs to be considered, as does the shape of the optical pulses incident on the device. Simulation results are presented for a variety of cavity bandwidths, pulse shapes and durations, and spacing between adjacent wavelength channels. These results are verified experimental using a microcavity with a bandwidth of 260 GHz (2.1 nm) at normal incident angle, with the incident signal comprising of two wavelength channels separated by 1.25 THz (10 nm), each operating at an aggregate data rate of 160 Gb/s. The results demonstrate the applicability of the presented technique to monitor accumulated dispersion fluctuations in a range of 3 ps/nm for 160 Gb/s RZ data channel.

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Section: A Cavity Effectmentioning

confidence: 99%

Section: Pulse Shape Influence On the Monitoring Characteristicmentioning

confidence: 99%

Section: Theoretical Model Describing Tpa Based Chromatic Dispersmentioning

confidence: 99%

mentioning

confidence: 99%

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Chromatic Dispersion Monitoring for High-Speed WDM Systems Using Two-Photon Absorption in a Semiconductor Microcavity

Bondarczuk¹,

Maguire²,

Reid³

et al. 2009

IEEE J. Quantum Electron.

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“…One of the major limitations for high-speed long-distance optical transmission systems is chromatic dispersion (CD). Various methods have been proposed to increase systems tolerance to CD such as the prechirp technique [2] or using a data modulation format resulting in a narrower optical spectrum, e.g., duobinary signaling [3]. However, compensation of accumulated CD is likely to be required for any high-speed telecommunication link.…”

mentioning

confidence: 99%

Chromatic Dispersion Monitoring of 80-Gb/s OTDM Data Signal via Two-Photon Absorption in a Semiconductor Microcavity

Bondarczuk

Maguire

Barry

et al. 2007

IEEE Photon. Technol. Lett.

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Abstract-In this letter, a novel method of chromatic dispersion monitoring via two-photon absorption (TPA) is investigated. A specially designed semiconductor microcavity is employed as a TPA detector for monitoring data signals operating at rates up to 80 Gb/s. As the microcavity has a wavelength-dependent response, a single device can be used to monitor multiple channels in a multiwavelength optical telecommunication system.

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Grobe¹,

Eiselt²

2013

Wavelength Division Multiplexing

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Prechirp technique for dispersion compensation for a high-speed long-span transmission

Cited by 36 publications

References 11 publications

Chromatic Dispersion Monitoring for High-Speed WDM Systems Using Two-Photon Absorption in a Semiconductor Microcavity

Chromatic Dispersion Monitoring for High-Speed WDM Systems Using Two-Photon Absorption in a Semiconductor Microcavity

Chromatic Dispersion Monitoring of 80-Gb/s OTDM Data Signal via Two-Photon Absorption in a Semiconductor Microcavity

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