Novel all-optical logic gate using an add-drop filter and intensity switch

Threepak, Thanunchai; Mitatha, S.; Yupapin, P.P.

doi:10.1109/inec.2010.5424664

Cited by 3 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The all-optical switches have been developed based on various microring resonator configurations, namely, all-pass ring resonator [15], add-drop ring resonator [16], PANDA ring resonator [17], [18], Mach-Zehnder coupled ring resonator [19] and recently Noorden et al [20] has proposed a Mobius ring resonator for bistable switching.…”

Section: Introductionmentioning

confidence: 99%

Soliton pulse induces TPA effect in a silicon MRR all-optical switch

Nawi

Ali

Yupapin

2015

2015 IEEE Conference on Systems, Process and Control (ICSPC)

View full text Add to dashboard Cite

One of the critical problems in achieving a real practical all-optical switching devices is the requirement for a strong material nonlinearity. A strong material nonlinearity is crucial in order to achieve a low switching power. However, silicon-based all-optical switches require extremely high switching power due to its relatively weak nonlinear optical properties. To overcome this limitation, we have designed an all-optical switch configuration based on silicon microring resonator structure and demonstrated the switching operation based on the nonlinear effects induced by a soliton pulse. The soliton pulse induces freecarrier concentration through two-photon absorption (TPA) effect and this leads to enhance the refractive index change and enhance the nonlinearity of the silicon. Thus, the silicon microring resonator alters the nonlinear phase shift which is required for switching.

show abstract