Monolithically Integrated 8:1 SOA Gate Switch With Large Extinction Ratio and Wide Input Power Dynamic Range

Tanaka, Sinsuke; Jeong, Seok–Hwan; Yamazaki, S.; Uetake, Ayahito; Tomabechi, Shuichi; Ekawa, Mitsuru; Morito, Ken

doi:10.1109/jqe.2009.2026652

Cited by 56 publications

(24 citation statements)

References 7 publications

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“…Semiconductor optical amplifier (SOA) gate switches have been more extensively deployed in system-level studies: Electrical control results are relatively simple and with low voltages; also, tolerance to current variations and excellent crosstalk suppression are typical characteristics [19]. Furthermore, SOA-based gate switches can enable passbands of several Terahertz, colorless and wavelength multiplexed routing [20].…”

Section: Monolithically Integrated Fast Optical Switchingmentioning

confidence: 99%

Towards Large-Scale Fast Reprogrammable SOA-Based Photonic Integrated Switch Circuits

Stabile

2017

Applied Sciences

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Due to the exponentially increasing connectivity and bandwidth demand from the Internet, the most advanced examples of medium-scale fast reconfigurable photonic integrated switch circuits are offered by research carried out for data-and computer-communication applications, where network flexibility at a high speed and high connectivity are provided to suit network demand. Recently we have prototyped optical switching circuits using monolithic integration technology with up to several hundreds of integrated optical components per chip for high connectivity. In this paper, the current status of fast reconfigurable medium-scale indium phosphide (InP) integrated photonic switch matrices based on the use of semiconductor optical amplifier (SOA) gates is reviewed, focusing on broadband and cross-connecting monolithic implementations, granting a connectivity of up to sixteen input ports, sixteen output ports, and sixty-four channels, respectively. The opportunities for increasing connectivity, enabling nanosecond order reconfigurability, and introducing distributed optical power monitoring at the physical layer are highlighted. Complementary architecture based on resonant switching elements on the same material platform are also discussed for power efficient switching. Performance projections related to the physical layer are presented and strategies for improvements are discussed in view of opening a route towards large-scale power efficient fast reprogrammable photonic integrated switching circuits.

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Section: Monolithically Integrated Fast Optical Switchingmentioning

confidence: 99%

Towards Large-Scale Fast Reprogrammable SOA-Based Photonic Integrated Switch Circuits

Stabile

2017

Applied Sciences

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“…Nonetheless extinction ratios achieved for SOA gates are commonly reported in the 40dB range (Larsen & Gustavsson, 1997;Varazza et al, 2004, Tanaka et al, 2009. Inter-wavelength crosstalk has been studied across architectures.…”

Section: Crosstalkmentioning

confidence: 99%

“…The excellent measured power penalties allow the cascading of two stages which should enable 1x64 functionality. Active-passive regrown wafers (Tanaka et al, 2009) have also been used to create compact monolithic 1x8 switches. The thin tensile-strained MQW active layers used for the SOA gates allow for an optimisation of output saturation power, noise, and polarization insensitivity.…”

Section: Eight Port Switch Elementsmentioning

confidence: 99%

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

Williams

2011

Advances in Optical Amplifiers

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“…For these optical switching systems, some high-speed optical switch technologies [14][15][16] have been devised, among which, optical switches based on wavelength tunable lasers and arrayed waveguide gratings (AWGs) 17,18) can easily increase the number of input=output ports compared with other optical switches. This type of optical switch requires tunable lasers that are capable of not only high-speed wavelength switching but also have a wide tuning range, which realizes a large number of input=output ports.…”

Section: Introductionmentioning

confidence: 99%

High-speed and long-term wavelength stabilization of tunable distributed amplification distributed feedback laser after laser activation with feedforward and feedback control

Fukuda

Yamaguchi

Kuboki

et al. 2018

Jpn. J. Appl. Phys.

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To manage recent exponentially increasing data traffic, optical-to-optical burst switching and packet switching systems have been attracting much attention because they do not require an optical-to-electrical and an electrical-to-optical conversions. These systems require high-speed optical switches with a large number of input/output ports. As a candidate for the optical switch, we have focused on the combination of wavelength tunable lasers and an arrayed waveguide grating router, and studied the tunable distributed amplification distributed feedback (TDA-DFB) lasers for the optical switch. Previously, our derived feedforward current control achieved high-speed wavelength switching at a single laser in six-arrayed TDA-DFB lasers. For larger-scale optical switching, wavelength switching from a laser to another in an array is required to cover a wide tunable range. In this study, we develop a novel current control model and successfully stabilize the wavelength immediately after laser activation, which would enable high-speed switching between different lasers. Furthermore, we demonstrate the combination of feedforward and feedback controls for high-speed switching with long-term stability.

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Monolithically Integrated 8:1 SOA Gate Switch With Large Extinction Ratio and Wide Input Power Dynamic Range

Cited by 56 publications

References 7 publications

Towards Large-Scale Fast Reprogrammable SOA-Based Photonic Integrated Switch Circuits

Towards Large-Scale Fast Reprogrammable SOA-Based Photonic Integrated Switch Circuits

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

High-speed and long-term wavelength stabilization of tunable distributed amplification distributed feedback laser after laser activation with feedforward and feedback control

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