All-optical switches based on 3×3 generalized multimode interference structure

Thanh, Le Trung; Truong, Cao Dung

doi:10.1016/j.photonics.2013.05.003

Cited by 2 publications

(2 citation statements)

References 26 publications

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“…Using thermal effect Quartz medium expandability, medium speed; ³ms Polymer medium expandability, medium speed; ³ms, low cost Using electro-optic effect 4) high speed; µs-ns, low stability Mach-Zehnder (multimode) [20][21][22][23][24][25][26][27][28][29][30][31][32][33] optical gate, medium speed; ³ms Mach-Zehnder (SOA) 34) high speed; ³ps Photonic crystal…”

Section: Waveguide Typementioning

confidence: 99%

“…4) Devices using a multimode interference-based MZI have two arms with two branches, where one arm works as a reference. [20][21][22][23][24][25][26][27][28][29][30][31][32][33] The extinction ratio of the MZI is generally not very good and the response time still remains on the order of µs. A fastresponse MZI is achieved by using an SOA on both arms of the interferometer, which allows 10 Gbit/s operation.…”

Section: Introductionmentioning

confidence: 99%

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Switching mechanism of an all-optical switch using pulsed gating

Hiraga

Ueno

Ohta³

et al. 2014

Jpn. J. Appl. Phys.

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A versatile optically gated optical switch using an organic dye is suitable for light-path switching in an optical communication device for various wavelengths of the signal light. We have developed two types of all-optical switch, i.e., a coaxial configuration and a different-axis configuration. The coaxial configuration exhibits a faster response (∼80 µs) than the different-axis configuration (∼3 ms). Here, the response time of the signal light (1310 nm) is analyzed as a function of both the gating power (pulse height) and pulse width of the gating light (980 nm). The heating and propagation processes in a tiny area around the focal point of both the signal light and the gating light are discussed.

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Section: Waveguide Typementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Switching mechanism of an all-optical switch using pulsed gating

Hiraga

Ueno

Ohta³

et al. 2014

Jpn. J. Appl. Phys.

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Compact InGaAsP/InP 3 × 3 multimode-interference coupler-based electro-optic switch

Liu

Wang

et al. 2016

Appl. Opt.

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Optical switches are key components in data links for optical communication networks requiring low crosstalk and insertion loss, high switching speed, and power efficiency. A multimode-interference (MMI)-coupler-based switch with multiple inputs and outputs serving as a switching unit is desired toward forming a large-scale switch matrix. Here we demonstrate a compact 3×3 MMI coupler electro-optic switch based on the carrier injection effect on InGaAsP/InP substrates. This switch device is 2780 μm long by 18 μm wide. The switching states can be controlled by two index-modulation regions through applied bias voltages. Our simulation results show that the device exhibits low crosstalk of <-22 dB, high extinction ratio of ≳23 dB, low electrical switching energy of ∼2.0 pJ/bit, maximum operational frequency of ∼1.0 GHz, and optical bandwidth of ∼20 nm in the C band. We experimentally validated one of the switching states on a fabricated device with maximum current injections of ∼25 mA under combined bias voltages of ∼2.5 and ∼3.0 V. Such monolithic integration schemes make them an ideal candidate for future on-chip photonic integrated circuits.

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All-optical switches based on 3×3 generalized multimode interference structure

Cited by 2 publications

References 26 publications

Switching mechanism of an all-optical switch using pulsed gating

Switching mechanism of an all-optical switch using pulsed gating

Compact InGaAsP/InP 3 × 3 multimode-interference coupler-based electro-optic switch

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