42.6 Gbit/s fully integrated all-optical XOR gate

Dailey, James M.; Ibrahim, Selwan K.; Manning, R.J.; Webb, R.P.; Lardenois, S.; Maxwell, Graeme; Poustie, A.

doi:10.1049/el.2009.2036

Cited by 12 publications

(15 citation statements)

References 7 publications

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“…The main component of the modulation converter is an SOAbased MZI configured as an exclusive-OR (XOR) logic gate [14,15]. After describing the XOR functionality of the optical gate, we analyze its ability to generate phase-inverted pulses.…”

Section: Operational Principlesmentioning

confidence: 99%

All-optical technique for modulation format conversion from on-off-keying to alternate-mark-inversion

Dailey¹,

Webb²,

Manning³

2010

Opt. Express

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Access to the full text of the published version may require a subscription. Abstract: We propose and numerically investigate for the first time a novel all-optical on-off-keying to alternate-mark-inversion modulation format converter operating at 40 Gbps employing a semiconductor optical amplifier (SOA)-based Mach-Zehnder interferometer (MZI). We demonstrate that this SOA-MZI operates as a pulse subtractor, and in the absence of patterning will produce perfectly phase inverted pulses regardless of the individual SOA phase excursions. RightsWe use a comprehensive computer model to illustrate the impact of patterning on the output phase modulation which is quantified through the definition of the phase compression factor.

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Section: Operational Principlesmentioning

confidence: 99%

All-optical technique for modulation format conversion from on-off-keying to alternate-mark-inversion

Dailey¹,

Webb²,

Manning³

2010

Opt. Express

View full text Add to dashboard Cite

show abstract

“…The SOA-based MZI is configured as an exclusive-or (XOR) logic gate [2,3], as shown in Fig. 1, with two input ports, A and B.…”

Section: Operation Principlesmentioning

confidence: 99%

“…With no other inputs to the MZI, the two path lengths are identical, and setting the phase shifter to π leads to a destructive interference condition for the probe at the output port. The XOR gate is shown in the well-known push-pull configuration allowing switching windows much shorter than the SOA recovery times [2,3]. A pulse injected into input A is split between SOA1 and SOA2.…”

Section: Operation Principlesmentioning

confidence: 99%

“…If there is a pulse inputted to both A and B the simultaneous phase excursions in the two SOAs cancel and the switch stays closed. In this way the MZI exhibits XOR functionality, and we have recently demonstrated a 42.6 Gbps hybrid-integrated device operating with a low bit-error rate penalty [2].…”

Section: Operation Principlesmentioning

confidence: 99%

“…When a logical zero eventually enters port A, the pulse injected into port B creates an output pulse which must be of opposite phase as shown in Eq. (2). Similarly, Table 2 shows how a sequence of zeros also results in output pulses of alternating phase.…”

Section: Operation Principlesmentioning

confidence: 99%

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