Low Insertion Loss and Power Efficient 32 × 32 Silicon Photonics Switch with Extremely-High-Δ PLC Connector

Suzuki, Keijiro; Konoike, Ryotaro; Hasegawa, Junichi; Suda, Satoshi; Matsuura, Hiroyuki; Ikeda, Kazuhiro; Namiki, Shu; Kawashima, Hitoshi

doi:10.1364/ofc.2018.th4b.5

Cited by 17 publications

(16 citation statements)

References 4 publications

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“…In this paper, we report on a high performance 32 × 32 PI-LOSS switch that exhibits a minimum insertion loss of 8.9 dB and on-chip electric power consumption of 1.9 W [11]. These values are approximately 1/60 and 1/4 of the previous results [8].…”

Section: Introductionmentioning

confidence: 73%

Low-Insertion-Loss and Power-Efficient 32 × 32 Silicon Photonics Switch With Extremely High-Δ Silica PLC Connector

Suzuki

Konoike

Hasegawa

et al. 2019

J. Lightwave Technol.

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113

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We fabricate a 32 × 32 silicon photonics switch on a 300-mm silicon-on-insulator wafer by using our complementary metal-oxide-semiconductor pilot line equipped with an immersion ArF scanner and demonstrate an average fiber-to-fiber insertion loss of 10.8 dB with a standard deviation of 0.54 dB, and on-chip electric power consumption of 1.9 W. The insertion loss and the power consumption are approximately 1/60, and less than 1/4 of our previous results, respectively. These significant improvements are achieved by design and fabrication optimization of waveguides and intersections on the chip, and by employing a novel optical fiber connector based on extremely-high-Δ silica planarlightwave-circuit (PLC) technology. The minimum crosstalk was −26.6 dB at a wavelength of 1547 nm, and −20-dB crosstalk bandwidth was 3.5 nm. Furthermore, we demonstrate low-crosstalk bandwidth expansion by using output port exchanged element switches. We achieve a −20 dB crosstalk bandwidth of 14.2 nm, which is four-times wider than that of the conventional element switch based 32 × 32 switch.

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Section: Introductionmentioning

confidence: 73%

Low-Insertion-Loss and Power-Efficient 32 × 32 Silicon Photonics Switch With Extremely High-Δ Silica PLC Connector

Suzuki

Konoike

Hasegawa

et al. 2019

J. Lightwave Technol.

Self Cite

113

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“…Other notable demonstrations of integrated optical switches are [21,22,23,24,25,26,27,28,29,30,31,32,33,34,35]. Wavelength-selective switches with single wavelength connectivity based on an Arrayed Waveguide Grating Router (AWGR) [36], cascaded microring crossbar switch [37], modular switch and select architecture [38], switch with multi-casting functionality [39] have been reported.…”

Section: Optical Switchesmentioning

confidence: 99%

Multi-wavelength selective crossbar switch

Khope

Saeidi

et al. 2019

Opt. Express

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When I started out at UC Santa Barbara as a PhD student in 2015, there was no funding until the AIM project proposal got accepted. Without funding no work gets done, so first I am grateful to Prof. Rod Alferness for funding me for the first year and Prof. John Bowers for funding me for the rest of my PhD. To John, thanks for giving me complete freedom at work without which I could not have explored so many different areas in research. I enjoyed our conversation in the monthly meetings with Rod, John and Adel. For the first few months of my PhD I spent a lot of time with Adel doing a literature survey, it was an exciting journey in a new field. To Adel, thanks for filtering out the unsound ideas and helping me frame my thoughts. I enjoyed our white board discussions. To Roger, Clint, Takako and Andy at the Datacom meetings for discussions and helpful feedback. To Tin, for the fun we had at the New York Training conference. To Alex, Warren, Eric and Andy for the excellent office environment. To Alex, for inspiring me to get Scuba certified and also for tips on cooking Thai cuisine. To Aranya, for being my climbing buddy. To Sean, Simran Lawrence, Wilson and many others, for the fun time we had at UCSB badminton intramural. To Chirag, for providing helpful advice when needed. Thanks to Nicolas, Geza, Christos, Sarat, Aditya for helpful discussions. I would also like to thank Minh, Tony, Paolo, Yuan and Alan for their helpful advice. Special Thanks to Songtao for help with high speed measurements. Thanks to my Pappa, Mamma and Sairaj for the support during my PhD and for recharge time in India. Finally I would also thank Jeremiah Hebding, Brett Attaway, and SUNY for their foundry services. v

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“…free-space MEMS switch, III-V SOA switch, SiP MEMS switch and SiP interferometric switch. The data quoted for optical power penalties were acquired from the state-of-the-art demonstrations for each switching technology [12,25,83,86]. For cost-per-port, we set the free-space MEMS switch and SiP interferometric switch as two reference points.…”

Section: Combining Metricsmentioning

confidence: 99%

“…In addition, the attached SOAs can operate as power detectors in the reverse bias mode for a self-calibration purpose [98]. Given that power-efficient optical switching has been demonstrated for both electro-optic [57] and thermo-optic [86] devices on SOI platform, the energy efficiency of III-V/Si hybrid switches will largely depend on the coupling efficiency between the two materials. The demonstrated high wall-plug efficiency of the hybrid distributed feedback laser paved the way for power-efficient hybrid switch devices [96].…”

Section: Hybrid Concept: Iii-v/si Switchesmentioning

confidence: 99%

Photonic switching in high performance datacenters [Invited]

et al. 2018

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Photonic switches are increasingly considered for insertion in high performance datacenter architectures to meet the growing performance demands of interconnection networks. We provide an overview of photonic switching technologies and develop an evaluation methodology for assessing their potential impact on datacenter performance. We begin with a review of three categories of optical switches, namely, free-space switches, III-V integrated switches and silicon integrated switches. The state-of-the-art of MEMS, LCOS, SOA, MZI and MRR switching technologies are covered, together with insights on their performance limitations and scalability considerations. The performance metrics that are required for optical switches to truly emerge in datacenters are discussed and summarized, with special focus on the switching time, cost, power consumption, scalability and optical power penalty. Furthermore, the Pareto front of the switch metric space is analyzed. Finally, we propose a hybrid integrated switch fabric design using the III-V/Si wafer bonding technique and investigate its potential impact on realizing reduced cost and power penalty.

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Low Insertion Loss and Power Efficient 32 × 32 Silicon Photonics Switch with Extremely-High-Δ PLC Connector

Cited by 17 publications

References 4 publications

Low-Insertion-Loss and Power-Efficient 32 × 32 Silicon Photonics Switch With Extremely High-Δ Silica PLC Connector

Low-Insertion-Loss and Power-Efficient 32 × 32 Silicon Photonics Switch With Extremely High-Δ Silica PLC Connector

Multi-wavelength selective crossbar switch

Photonic switching in high performance datacenters [Invited]

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