50 and 100 GHz multichannel tunable chromatic dispersion slope compensator

Lachance, Richard L.; Lelièvre, Sylviane; Painchaud, Yves

doi:10.1109/ofc.2003.1247570

Cited by 16 publications

(10 citation statements)

References 6 publications

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“…Thus, a 50-GHz filter characteristic would occupy only about 25 % of the interchannel spacing provided by the PGDD; i.e., it is narrow. A PGDD with such a narrow-band filtering is easier to fabricate than a higher-bandwidth one [23]- [25]. It is, therefore, fortunate that jitter suppression requires just such a narrow PGDD filter.…”

Section: Power and Phase Transfer Curvesmentioning

confidence: 99%

NALM-based, phase-preserving 2R regenerator of high-duty-cycle pulses

Lakoba¹,

Williams²,

Vasilyev³

2011

Opt. Express

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We explore the potential of the nonlinear amplifying loop mirror (NALM)-based phase-preserving 2R (reamplification and reshaping) regenerator for simultaneous regeneration of multiple wavelength-division-multiplexed (WDM) channels. While not considering nonlinear multi-channel propagation, we address two issues of the phase-preserving NALM that appear to us as the major obstacles in adopting it for realistic WDM applications: a high operating power and a detrimental effect of non-small (33% - 50%) pulse duty cycles. After thorough optimization, we find a new operating regime of this regenerator with the non-small duty-cycle capability and approximately an order of magnitude reduction of the required operating power. In addition, we show that the plateau in the input-output power transfer curve does not automatically lead to the reduction of the amplitude jitter, which is particularly noticeable for the non-small duty-cycle pulses.

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Section: Power and Phase Transfer Curvesmentioning

confidence: 99%

NALM-based, phase-preserving 2R regenerator of high-duty-cycle pulses

Lakoba¹,

Williams²,

Vasilyev³

2011

Opt. Express

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“…The measured dispersion values of the channels were within 2.1% of target. In 2003, the same group published results on a 16-channel device that was also thermally tunable, with the dispersion slope between the channels scaling appropriately with the dispersion [91].…”

Section: Overwritten Gratingsmentioning

confidence: 99%

Survey of systems experiments demonstrating dispersion compensation technologies

Garrett¹

2006

J Optic Comm Rep

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Chromatic dispersion compensation is an integral part of WDM transmission system design. Compensator properties such as insertion loss, dispersion slope and effective mode area have a large impact on WDM system performance due to nonlinear optical propagation effects. Dispersion compensator imperfections, such as multi-path interference, group delay ripple, insertion loss ripple and limited per-channel compensation bandwidth, place additional limitations on the achievable transmission distance and capacity. In this paper, a survey of key WDM transmission system experiments is undertaken to 1) review the development of chromatic dispersion compensation technologies, 2) discuss the device characteristics that most impact system design for each technology, and 3) hopefully enable the reader to better evaluate compensator technologies for specific applications.

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“…Total performances of adaptive dispersion compensation are determined mainly by the measurement range of in-service dispersion monitor and the compensation range of tunable dispersion compensators. [18][19][20][21][22] , chirped fiber Bragg gratings (CFBG's) [23][24][25][26][27][28] , Gires-Tournois (GT) interferometers 29,30 , and virtually imaged phase array (VIPA) 2 . One essential consideration on optical dispersion compensators is that there is a tradeoff relationship between the dispersion compensation range D and the available bandwidth B.…”

Section: Adaptive Dispersion Compensation In Optical Transmission Sysmentioning

confidence: 99%

“…Therefore, these devices can be readily applied on channel-by-channel basis. Also some of these devices have periodical transfer functions, which enables us to compensate for many WDM channels simultaneously 2,21,22,27,28,31 . This multi-channel compensation might become an advantage over electronic dispersion compensation.…”

Section: Adaptive Dispersion Compensation In Optical Transmission Sysmentioning

confidence: 99%

In-service dispersion monitoring technique using dithered-filter method and its application to fast adaptive compensation in reconfigurable optical networks

2005

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ABSTRUCTWe describe an in-service dispersion monitoring technique which we call dithered-filter method and show its application to adaptive dispersion compensation. In the proposed method, we filter out a portion of the received signal light by a dithered optical band-pass filter and derive the accumulated dispersion from the phase shift of the extracted clock signal. This method does not require any modification of the transmitter, and is applicable to any modulation format as far as the clock signal is extracted. In addition, owing to the dithering and the synchronous detection, high accuracy is realized with a short measurement time less than 200 msec. In this paper, we explain the principle of operation of the proposed method and show the experimental demonstration of fast adaptive dispersion compensation in a 40 Gbit/s reconfigurable optical network.

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50 and 100 GHz multichannel tunable chromatic dispersion slope compensator

Cited by 16 publications

References 6 publications

NALM-based, phase-preserving 2R regenerator of high-duty-cycle pulses

NALM-based, phase-preserving 2R regenerator of high-duty-cycle pulses

Survey of systems experiments demonstrating dispersion compensation technologies

In-service dispersion monitoring technique using dithered-filter method and its application to fast adaptive compensation in reconfigurable optical networks

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