Compact, low-loss 4 × 4 optical switch matrix using multimode interferometers

Earnshaw, Mark; Soole, J.B.D.; Cappuzzo, M.; Gomez, L.; Laskowski, E.J.; Paunescu, A.

doi:10.1049/el:20010068

Cited by 18 publications

(11 citation statements)

References 3 publications

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“…The multimode interference coupler switching element is designed and fabricated by polymeric material in [14][15][16]. The MMI coupler is suitable for implementing passive splitter (PS) or passive combiner (PC) switching elements because of its properties [16].…”

Section: Multimode Interference Coupler Switchmentioning

confidence: 99%

“…Optical interconnection networks have been constructed by optical switch elements including total internal reflection switches [9], directional coupler [10,11], crossing X switches [12,13] and MMI coupler [14][15][16]. The MMI coupler has these properties: low process costs, easy switching element designing, large-scale photonic integrated circuits, and splitting/combining from/into a channel with low loss and good balancing [16].…”

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confidence: 99%

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Multicast Network with MMI-Based Optical Switches on Active Splitter/Active Combiner Structure

Lee

Deng

et al. 2009

2009 10th International Symposium on Pervasive Systems, Algorithms, and Networks

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Multicast communications have become more and more important recently, especially in their applications in multimedia communication, quality of service (QoS), video conferencing, and distance education. In a point-to-point (PTP) optical communication system, how to provide multicast services is an essential issue. There are some advantages of active splitter/active combiner (AS/AC) networks, such as strictly nonblocking, simpler routing algorithm, lower systeminsertion-loss, zero differential loss, and better signal-to-noise characteristics. The active multimode interference (MMI) coupler can provide splitting/combining operations with low loss and good balancing. It has been demonstrated that the AS/AC network constructed by active MMI switching devices can implement the multicast and PTP communications simultaneously. In this study, we offer two multicast algorithms, parallel multicast, and tunable multicast, on AS/AC network. The parallel multicast algorithm is suitable when there are multi requests arriving at the same time. The tunable multicast algorithm is suitable for balancing the output signals' power. Keywords -Multicast, multistage interconnection network (MIN), optical interconnection network, active splitter/active combiner (AS/AC) network, multimode interference (MMI)

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Section: Multimode Interference Coupler Switchmentioning

confidence: 99%

mentioning

confidence: 99%

Multicast Network with MMI-Based Optical Switches on Active Splitter/Active Combiner Structure

Lee

Deng

et al. 2009

2009 10th International Symposium on Pervasive Systems, Algorithms, and Networks

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“…3. 18 The active region ͑electro-or thermo-optic region͒ is used to change the relative phases among the arms, which can realize the switching [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] or tunable power splitting function at the outputs. 22 Generally, the MZI switches are based on Y-junction, directional coupler and MMI.…”

Section: Mmi-mzi Switchesmentioning

confidence: 99%

Multimode interference photonic switches

et al. 2008

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Abstract. Photonic switches are becoming key components in advanced optical networks due to their various applications in optical communication. One of the key advantages of photonic switches is the fact that they redirect or convert light without any optical to electronic conversions and vice versa. As one type of optical switch, multimode interference ͑MMI͒ switches have received more attention in recent years due to their significant role. The structure and operation principle of various types of MMI switches are introduced, and the recent progresses of MMI switches are also discussed.

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“…In particular, high performance optical switches are indispensable for the construction of an optical cross connect (OXC) system, and many optical switches using MMI couplers have been studied because of good characteristics of the MMI approach [1,2,3]. Multiarm types of MMI switches have also been studied, but most of these are aimed at generalized Mach-Zehnder interferometer work as N × N switches or variable-ratio power splitters [4,5,6], and a multi-arm switch has not been introduced for the general improvement of the characteristics.…”

Section: Introductionmentioning

confidence: 99%

A novel 2 * 2 multi-arm type of optical switch using multimode interference couplers

Masuda

Tate

Tsuda

2006

IEICE Electron. Express

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Abstract:We have proposed a novel 2 × 2 optical switch using multimode interference (MMI) coupler. This switch comprises four arms, located between two MMI couplers, and works by controlling a phase shifter, situated in each arm. Compared with conventional Mach-Zehnder type of optical switches, BPM simulation of this device predicted a high tolerance to fabrication errors. We fabricated the device with silica waveguides, and confirmed that it functioned with an insertion loss of 4.1 dB and an extinction ratio of about 20 dB. Keywords: optical switch, multimode interference coupler, multiarm, Mach-Zehnder Classification: Photonics devices, circuits, and systems References

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Compact, low-loss 4 × 4 optical switch matrix using multimode interferometers

Cited by 18 publications

References 3 publications

Multicast Network with MMI-Based Optical Switches on Active Splitter/Active Combiner Structure

Multicast Network with MMI-Based Optical Switches on Active Splitter/Active Combiner Structure

Multimode interference photonic switches

A novel 2 * 2 multi-arm type of optical switch using multimode interference couplers

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