Optical Reshaping of 40-Gb/s NRZ and RZ Signals Without Wavelength Conversion

Contestabile, G.; Presi, M.; Proietti, Roberto; Ciaramella, E.

doi:10.1109/lpt.2008.924646

Cited by 24 publications

(15 citation statements)

References 7 publications

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“…This effect can be exploited for a number of different applications, from single and multiwavelength conversion [6,7] to all-optical 2R regeneration [6,8]. The schematic of the effect is reported in Fig.…”

Section: Cross Gain Compression (Xgc)mentioning

confidence: 99%

“…However, regeneration without wavelength conversion is, in general, a harder task to obtain, but as discussed before XGC allows to realize an all-optical 2R regenerator without wavelength conversion. Moreover, if using a slightly modified set-up for the XGM signal inverter, the scheme can potentially work at very high bit rate and for both NRZ and RZ signals [8]. By basically using the same set-up as an XGM wavelength converter but including a suitable filter that selects only part of the chirped output spectrum, it is possible to largely improve the SOA gain recovery and to have very high-speed operation.…”

Section: Cross Gain Compression (Xgc)mentioning

confidence: 99%

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How to use saturation effects in SOAs for all-optical processing

Contestabile

2009

2009 International Conference on Photonics in Switching

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A review of schemes useful in a number of highspeed all-optical processing functions that exploit the gain saturation of a semiconductor optical amplifier without suffering from usual pattern-related distortions is reported. Application of pulse-limiting amplification to clock recovery and Cross Gain Compression to single and multicast conversion, 2R regeneration for NRZ, RZ and packets are discussed.

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Section: Cross Gain Compression (Xgc)mentioning

confidence: 99%

Section: Cross Gain Compression (Xgc)mentioning

confidence: 99%

How to use saturation effects in SOAs for all-optical processing

Contestabile

2009

2009 International Conference on Photonics in Switching

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“…Thence SOAs have been widely used to perform a variety of all-optical functions such as wavelength conversion [4], signal regeneration [5], pulse reshaping [6], and power limiting [7]. Compared to their fiber-based counterparts [8].…”

Section: Introductionmentioning

confidence: 99%

High Data Rate Optical logic OR, and NOT Gates at Optimum Injection Current based on SOA-MZI

Neama¹,

Desher²

2017

IJCA

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In this paper, the semiconductor optical amplifier (SOA) is used with a Mach-Zehnder interferometer (MZI) forming an SOA-MZI structure which is used to perform the logic gates OR, and NOT. It is simulated at 10 Gbps, 20 Gbps, and 40 Gbps to extract simple design rules. Two binary input data signals are simulated at several bitrate 10 Gbps, 20 Gbps, and 40 Gbps. It is demonstrated that high data rate can be achieved with a specific injection current in SOA. SOAs required low injection current, which leads to a low value on the total power consumption of the gate. In addition, this work includes the study of the effect of the bit rate on the received power, minimum bit error rate (BER), and maximum quality factor (Q-factor). The logical output of the gate has an extinction ratio of more than 10 dB with good eye opening. The output of the OR, NOT gates shows error-free operation at different bit rate with a clear eye opening. General TermsOptical amplifier, MZI, optical logic gates.

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“…A regenerator based on two stages of cross-gain modulation has also made use of complementary signals to avoid patterning by ensuring that the power in the second stage remained constant [7]. However, by removing the power variations within each bit period, this system also cancels the phase changes that would be needed in an interferometer-based gate.…”

Section: Introductionmentioning

confidence: 99%