Result for "High speed optical modulation technology",117

What is high-capacity optical transmission technology? Infrastructure to support rapidly increasing communication traffic｜NTT R&D Website

What is high-capacity optical transmission technology? Infrastructure to support rapidly

https://www.rd.ntt/e/communication_device/0001.html

A Leap Forward in Ultra-high-speed Optical Modulation and Demodulation Technology for Achieving High-capacity, Long-distance Transmission | NTT R&D Website

A Leap Forward in Ultra-high-speed Optical Modulation and Demodulation Technology for Achieving

https://www.rd.ntt/e/research/JN202605_39218.html

rdf17-1e.pdf

Era," "Research and Development on High-speed Optical Transport System Technologies," "Research and

https://www.rd.ntt/e/nttdtc/theme/pdf/2017/rdf/rdf17-1e.pdf

Masanori Nakamura | NTT R&D Website

Research on ultrahigh-speed optical modulation and demodulation technologies for high-capacity and long

https://www.rd.ntt/e/organization/researcher/special/s_086.html

First demonstration of nanowire lasers at telecom wavelengths and high-speed signal modulation｜NTT Basic Research Laboratories | NTT R&D Website

form an optical nanocavity *3. NTT-BRL hav also demonstrated high-speed signal modulation of nanowire

https://www.rd.ntt/e/brl/latesttopics/2017/04/latest_topics_201704031636.html

Future Development of Digital Coherent Optical Transmission Technology | NTT R&D Website

technology are described in this article from the perspectives of high-speed and high-capacity transmission

https://www.rd.ntt/e/research/JN202205_18123.html

Yoshihiro Ogiso | NTT R&D Website

) Keywords High-speed optical modulation technology Compound semiconductor Digital coherent device Related

https://www.rd.ntt/e/organization/researcher/special/s_062.html

Signal Processing Device Project | NTT Device Technology Center | NTT R&D Website

(coherent DSPs) to enable ultra-high-speed coherent optical transmissions (Figure 1). Coherent DSPs digitize

https://www.rd.ntt/e/nttdtc/organization/photonic.html

Research on Ultra-high-speed Mach-Zehnder Electro-optic Modulators for Long-distance Optical Transmission of 1 Terabit per Second｜NTT R&D Website

into high-speed optical signals, NTT Device Technology Laboratories was responsible for the part that

https://www.rd.ntt/e/research/JN202201_16974.html

High-output Optical Transmitter and High-sensitivity Optical Receiver for 400-Gbit/s 40-km Fiber-amplifier-less Transmission | NTT R&D Website

power consumption. AXEL The key device of the high-output optical transmitter is a high-speed, high

https://www.rd.ntt/e/research/JN202206_18469.html

Access system technologies | NTT Access Network Service Systems Laboratories | NTT R&D Website

flexibly utilizing wavelengths Very high speed optical fiber communication services at lower cost. Action

https://www.rd.ntt/e/as/theme/01.html

no_42_e.pdf

ultrahigh-speed transmission, and will open up a new world of optical devices. High-speed modulation

https://www.rd.ntt/brl/event/splaza2009/poster/EN/no_42_e.pdf

Nanostructured Device Research Group｜Device Technology Laboratories｜NTT R&D Website

membrane structure ・Features High optical confinement factor: Efficient modulation is possible because

https://www.rd.ntt/e/dtl/technology/nanostructured_device_research_group_ntt_device_technology_laboratories_ntt_rd_website.html

Video distribution system that supports BS/CS110°-IF signals pass-through using FM conversion method｜NTT R&D Website

technology that converts multi-channel electrical signals into frequency modulation (FM) format on an optical

https://www.rd.ntt/e/research/AS0010.html

Hybrid State of Electrons Resonating at an Optical Communication Wavelength and a Gigahertz Ultrasonic Wave｜NTT Basic Research Laboratories | NTT R&D Website

surface and performed high-speed modulation of the optical resonance frequency of Er by fabricating a

https://www.rd.ntt/e/brl/latesttopics/2024/01/latest_topics_202401191601.html

Ultra-high-capacity Optical Communication Technology | NTT R&D Website

technology for SDM transmission and high-speed optical transmission with transmission speeds up to terabits

https://www.rd.ntt/e/research/JN20200312_h.html

Research and Development of 1.6-Tbit/s-class Ethernet Optical Transmission Technology Supporting Large-scale Datacenter Networks | NTT R&D Website

times per second. 2. Development trends in high-speed IM-DD signal transmission and reception technology

https://www.rd.ntt/e/research/JN202405_26179.html

High-Speed Analog Circuit Research Group｜Device Technology Laboratories｜NTT R&D Website

High-Speed Analog Circuit Research Group｜Device Technology Laboratories｜NTT R&D Website NTT R&D

https://www.rd.ntt/e/dtl/technology/high-speed_analog_circuit_research_group_ntt_device_technology_laboratories_ntt_rd_website.html

Photonics-electronics Convergence Technologies for Disaggregated Computing｜NTT R&D Website

compact optical module using silicon photonics technology around a central large-scale integrated circuit

https://www.rd.ntt/e/research/JN202105_13599.html

Yutaka Miyamoto | NTT R&D Website

. -Large-scale digital signal processing technology for optical communications -Wideband optical/electrical

https://www.rd.ntt/e/organization/researcher/fellow/f_006.html

Realization of an ultra-energy-saving electro-optic modulator and highly-efficient optical transistor｜NTT Basic Research Laboratories | NTT R&D Website

", which transfers a high-speed optical signal to another light with gain. This nanoscale technology will

https://www.rd.ntt/e/brl/latesttopics/2019/04/latest_topics_201904161802.html

Ultra High-Q Photonic Crystal Nanocavities Based on Compound Semiconductors

exhibit large refractive index modulation owing to optical nonlinearity, and they are expected to be used

https://www.rd.ntt/e/brl/result/activities/file/report07/report29.html

Latest Research Contents | NTT Basic Research Laboratories | NTT R&D Website

high-speed signal modulation 03/14/2017 Spin-resolved oscilloscope for charge and spin signals 02/07

https://www.rd.ntt/e/brl/latesttopics/

Bandwidth-doubler Technology Eliminates Bandwidth Bottlenecks | NTT R&D Website

this article Bandwidth-doubler technology for doubling optical communication speed What are the ways to

https://www.rd.ntt/e/research/JN202206_18608.html

Optical Device Technology for Next-generation Computing Using Light | NTT R&D Website

, including optical interconnection, in response to high-capacity transmission technology used for optical

https://www.rd.ntt/e/research/JN202206_18551.html

NTT Innovative Photonic Network Center | NTT R&D Website

through the convergence of digital signal processing technology and high-speed optical analog front-end

https://www.rd.ntt/e/ipc/

Photonics-electronics convergence hardware technology, aimed at revolutionizing the network｜NTT R&D Website

hardware technology, supporting large-capacity optical transmission technology and revolutionizing networks

https://www.rd.ntt/e/communication_device/0002.html

Optical Transmission Technology for Practical Implementation of the All-Photonics Network | NTT R&D Website

stable transmission of high-speed optical signals. Multiplexing using multiple wavelength bands

https://www.rd.ntt/e/research/JN202211_20087.html

Improving the Performance of Quantum Key Distribution | NTT R&D Website

quadrature amplitude modulation (QAM)*4used in modern optical communications. A very high-speed secret-key

https://www.rd.ntt/e/research/JN202304_21650.html

Achieving the Word's Highest Wireless Transmission Rate by Delving into Theories That Appeared about 100 Years Ago | NTT R&D Website

technology in terms of high speed and high capacity through OAM multiplexing technology Would you tell us

https://www.rd.ntt/e/research/JN202403_25301.html

High-performance Optical Devices with Integration of Heterogeneous Materials Accelerating the Future of Photonics-electronics Convergence Technologies | NTT R&D Website

low electrical resistance, low optical loss, and high phase modulation efficiency in the n-type region

https://www.rd.ntt/e/research/JN202401_24548.html

Overview of Research in Laboratories

nano-photodetectors integrated with resistors. We have also demonstrated the high-speed modulation of

https://www.rd.ntt/e/brl/result/activities/file/report16/report00E.html

Development of Membrane Optical Modulators for IOWN | NTT R&D Website

silicon photonics optical interconnection optical modulator To develop a high-speed, large-capacity

https://www.rd.ntt/e/research/JN202206_18502.html

Photonic Gateway and Related Optical Access Technologies to Achieve the All-Photonics Network｜NTT R&D Website

technology, which converts RF signals into optical frequency modulation (FM) signals and transmits them over

https://www.rd.ntt/e/research/JN202102_10379.html

Device Technology for Short-range Optical Interconnections with High Density and Low Power Consumption | NTT R&D Website

Device Technology for Short-range Optical Interconnections with High Density and Low Power

https://www.rd.ntt/e/research/JN202008_6173.html

R&D History | NTT R&D Website

. Demonstrated world's first laser oscillation and high-speed modulation using optical communication wavelength

https://www.rd.ntt/e/about/chronicle/

Innovation in Computing Powered by Photonic Technology--Evolution toward IOWN 2.0 and 3.0, and the Leap to Quantum | NTT R&D Website

optical signals, reducing power consumption and achieving high-speed communication with low latency. In

https://www.rd.ntt/e/forum/2025/keynote_1.html

Research and Development of Scalable Optical Transport Technologies | NTT R&D Website

optical parametric amplification repeater technology and ultra-high-speed signal-generation technology

https://www.rd.ntt/e/research/JN202205_18134.html

Turning an Innovative Idea into Common Sense and Making It Useful to Society | NTT R&D Website

further scalability of digital-coherent optical-transmission technology that can achieve both high

https://www.rd.ntt/e/research/JN202304_21583.html

Yuta Ueda | NTT R&D Website

High-Speed (>100 Gbaud) Optical Devices", IEICE Trans. Electron., Vol.E102-C, No.4 pp.340-346 (2019). J

https://www.rd.ntt/e/organization/researcher/special/s_065.html

APN-controller Technology for IOWN Service Provision and Expansion | NTT R&D Website

analysis technology The All-Photonics Network (APN), which is the basis of the Innovative Optical and

https://www.rd.ntt/e/research/JN202311_23716.html

NTT R&D FORUM 2025 Event Report | NTT R&D Website

its vision for further advances in optical computing technology. Furthermore, by combining reliable

https://www.rd.ntt/e/forum/2025/

Optical Full-mesh Network Technologies Supporting the All-Photonics Network | NTT R&D Website

studied based on high-speed optical signal technology, multi-band transmission technology for transmitting

https://www.rd.ntt/e/research/JN20200318_h.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

"High-Speed Self-Pulsation In A 2-Element Optical Bistable Device" Opt. Commun. 76 (3-4), 245-249 (1990

https://www.rd.ntt/e/brl/result/publications/paper_1990.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

"High-Speed Self-Pulsation In A 2-Element Optical Bistable Device" Opt. Commun. 76 (3-4), 245-249 (1990

https://www.rd.ntt/brl/result/publications/paper_1990.html

optomechanics.html

is sensed using a high-Q whispering-gallery-mode optical cavity evanescently. The optical Q of the

https://www.rd.ntt/brl/group_introduction/butsume-g/optomechanics.html

Sharing Moments of "This Is It!" with Colleagues to Research and Develop Optical Communication Technology for Revolutionizing Society | NTT R&D Website

, and Y. Miyamoto, "Ultrahigh-speed Optical Communications Technology Combining Digital Signal

https://www.rd.ntt/e/research/JN202007_5686.html

NTT Communication Science Laboratories Open House 2016 Program

- High-speed search over hypergraphs via quantum walk - Assuring next generation web security - Formal

https://www.rd.ntt/cs/event/openhouse/2016/program_en.html

An Essential Quality of a Researcher Is Persistence. Believe What You Are Doing Will Go Well｜NTT R&D Website

themes. One is developing device technology for high-density, low-power, short-range optical

https://www.rd.ntt/e/research/JN202107_14504.html

Updates | NTT R&D Website

Impairments 07/27/2026 A Leap Forward in Ultra-high-speed Optical Modulation and Demodulation Technology for

https://www.rd.ntt/e/update_information/

NTT_TRFSW_2022_E.pdf

vision that emerged from the invention of a high- speed and energy-efficient optical transistor by NTT

https://www.rd.ntt/e/download/NTT_TRFSW_2022_E.pdf

Book1

generators with “optical ruler” -Toward high-speed and large-capacity wireless telecommunications with high

https://www.rd.ntt/brl/event/sp2016/poster/files/poster_list.pdf

NTTBrl__E_h1

form a hybrid nanocavity. We have also demonstrated the first high-speed signal modulation of NW lasers

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2017_E.pdf

上田 悠太 | NTT R&D Website

Integrated Design Based on Flip-Chip Interconnection Technique (Hi-FIT) for High-Speed (>100 Gbaud) Optical

https://www.rd.ntt/organization/researcher/special/s_065.html

Derusting Technology Using High-power Laser Device｜NTT R&D Website

Derusting Technology Using High-power Laser Device｜NTT R&D Website NTT R&D Website Research

https://www.rd.ntt/e/research/JN202104_12112.html

Development of an Optomechanical Device with Extremely Low Optical Energy Loss | NTT R&D Website

device. If such high-speed operation can be attained, applications to optical-control technologies such

https://www.rd.ntt/e/research/JN202202_17215.html

Control of Elastic Waves Using Phonon Waveguides and Phononic Crystals | NTT R&D Website

platforms, such as planar lightwave circuits and photonic crystals, improved the photon-control technology

https://www.rd.ntt/e/research/JN202202_17213.html

Report_15_E.pdf

optical absorption, high-sensitivity spectroscopy is realized by monitoring the displacement of the

https://www.rd.ntt/e/brl/result/activities/file/report15/Report_15_E.pdf

NTTBrl_honbun_E_230228_final.indd

-edge technology that can advance NTT's long-term business, overcoming current limitations in speed

https://www.rd.ntt/brl/brl/result/activities/file/annual_report/Annual_report_2022_E.pdf

NTTBrl_honbun_E_230228_final.indd

-edge technology that can advance NTT's long-term business, overcoming current limitations in speed

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2022_E.pdf

Next-generation Energy Technology Contributing to Zero Environmental Impact | NTT R&D Website

technology for fusion reactors to achieve high-speed control for plasma stabilization by using the Innovative

https://www.rd.ntt/e/research/JN202212_20353.html

IOWN INTEGRAL | NTT R&D Website

between Japan and Taiwan. Fig. 3. IOWN APN Step1 and Step 2 for Enterprise. (1) Ultra-high-speed data

https://www.rd.ntt/e/forum/2024/keynote_2.html

BRLReports_E.pdf

limitations in speed, capacity, and size and 2) pioneer basic technology that will become a foundation for

https://www.rd.ntt/e/brl/result/activities/file/report03/BRLReports_E.pdf

Electrical Control of Plasmon Reflectivity in Graphene | NTT R&D Website

excited in electrically specified regions. This technology can be applied to plasmonic devices such as

https://www.rd.ntt/e/research/JN202303_21254.html

Report_16_E.pdf

-capacitance nano-photodetectors integrated with resistors. We have also demonstrated the high-speed modulation

https://www.rd.ntt/e/brl/result/activities/file/report16/Report_16_E.pdf

New Developments in Communication Science Research in the Generative AI Era--Exploring the Nature of Humans and Information for Co-creating Human-centered Technologies with AI | NTT R&D Website

CS Labs, we have used optical technology with laser beams and a high-speed camera to capture sound

https://www.rd.ntt/e/research/JN202409_29257.html

Annual_report_2019_E.pdf

molecular beam epitaxy apparatus: an enabling technology for high-quality thin films of complex oxides

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2019_E.pdf

Standardization Trends in Technologies Related to Fixed-line Networks | NTT R&D Website

optical fiber cable technology will see progress in the studies of high-density and high-capacity cables

https://www.rd.ntt/e/research/JN202311_23702.html

New Method of Chaos Generation by Using Nanomechanical Oscillator | NTT R&D Website

implemented in a variety of devices including optical resonators used in laser technology, therefore combining

https://www.rd.ntt/e/research/JN202202_17208.html

Papers -KN's HP-

dB extinction ratio, which rises to 11 dB for a 1 Gbps modulation speed. Electric tuning of direct

https://www.rd.ntt/brl/people/knishi50/paper_all.html

NTTBrl_honbun_E_190306.indd

Science Laboratory Multi-source molecular beam epitaxy apparatus: an enabling technology for high-quality

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2018_E.pdf

Publications | NTT Basic Research Laboratories | NTT R&D Website

Multistable Optical Chain" Phys. Rev. A 43 (1), 618-621 (1991). K. Otsuka and J. L. Chern "High-Speed

https://www.rd.ntt/e/brl/result/publications/paper_1991.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

Multistable Optical Chain" Phys. Rev. A 43 (1), 618-621 (1991). K. Otsuka and J. L. Chern "High-Speed

https://www.rd.ntt/brl/result/publications/paper_1991.html

Research Activities

Research Activities Cover photograph: Optical Image of the Blue-Light Electroluminescence from the

https://www.rd.ntt/e/brl/result/activities/file/report11/Report_11.pdf

Publication List

. Hasebe, T. Sato, K. Takeda, T. Fujii, T. Kakitsuka, and S. Matsuo, "High-Speed Modulation of Lateral p-i

https://www.rd.ntt/e/brl/result/activities/file/report14/data08E.html

学術論文出版一覧

, T. Fujii, T. Kakitsuka, and S. Matsuo, "High-Speed Modulation of Lateral p-i-n Diode Structure

https://www.rd.ntt/brl/result/activities/file/report14/data09J.html

report_2005E.pdf

appropriate management strategies tailored for each: High-priority research: Work where speed is critically

https://www.rd.ntt/e/brl/result/activities/file/report05/report_2005E.pdf

Yasushi Takatori | NTT R&D Website

) "High Spectral Density Optical Communication Technologies," Springer, 2010, Co-Author. "Introduction to

https://www.rd.ntt/e/organization/researcher/superior/s_029.html

鷹取 泰司 | NTT R&D Website

通信概論』（電気通信協会, 2022年, 分担執筆） 『プライベートワイヤレスネットワーク入門』（リックテレコム, 2021年, 分担執筆） "High Spectral Density Optical

https://www.rd.ntt/organization/researcher/superior/s_029.html

400Gbit/s 40kmの伝送を実現する高光出力光送信器と高感度光受信器 | NTT R&D Website

, M. Chen, Y. Ohiso, K. Sano, and H. Matsuzaki：“High Power and High Speed SOA Assisted Extended Reach

https://www.rd.ntt/research/JN202206_18469.html

Publication

, and M. Notomi, "Ultralow-energy and high-contrast all-optical switch involving Fano resonance based on

https://www.rd.ntt/npc/group/ryouna-g/publication-j.html

Publication

, and M. Notomi, "Ultralow-energy and high-contrast all-optical switch involving Fano resonance based on

https://www.rd.ntt/npc/group/ryouna-g/publication.html

Photonic Nano-Structure Research Group | NTT Basic Research Laboratories | NTT R&D Website

. Shinya, and M. Notomi All-optical dynamic modulation of spontaneous emission rate in hybrid

https://www.rd.ntt/e/brl/group_introduction/group_011.html

Papers>>Others -KN's HP-

demonstrate low-power and high-speed electro-optic modulation in a silicon chip. GHz operation is demonstrated

https://www.rd.ntt/brl/people/knishi50/paper_4.html

NTT物性科学基礎研究所の研究活動

optical network in the Tokyo metropolitan area. We also proposed that a very high-fidelity entangled

https://www.rd.ntt/e/brl/result/activities/file/report13/Report_13_e.pdf

Quantum Optical State Control Research Group | NTT Basic Research Laboratories | NTT R&D Website

. Hashimoto, A. H. Li, K. Sato, K. Inaba, H. Takesue, K. Aihara, and M. Hasegawa A High-Speed Channel

https://www.rd.ntt/e/brl/group_introduction/group_009.html

Publication

, Masaaki Ono, Akihiko Shinya, and Masaya Notomi, "All-optical dynamic modulation of spontaneous emission

https://www.rd.ntt/brl/group_introduction/butsuna-g/publication.html

Publication

, Masaaki Ono, Akihiko Shinya, and Masaya Notomi, "All-optical dynamic modulation of spontaneous emission

https://www.rd.ntt/brl/group_introduction/butsuna-g/publication-j.html

Microsoft Word - 01_akasaka-E.doc

present device achieves high-speed transfer and long retention. We demonstrated that the device could

https://www.rd.ntt/e/brl/result/activities/file/report04/BRLReports_E.pdf

english.pdf

technology). (2) GaN semiconductor device physics (electronic and optical properties of GaN quantum well

https://www.rd.ntt/e/brl/result/activities/file/report00/english.pdf

Report on the NTT R&D FORUM｜NTT R&D FORUM 2023 — IOWN ACCELERATION

the best data-management technology in the world from Oracle Corp. He expressed particularly high

https://www.rd.ntt/e/forum/2023/

Research Activities in NTT Basic Research Laboratories

device processing technology. (2) GaN semiconductor electronic/optical device physics (FET, HBT, LED and

https://www.rd.ntt/e/brl/result/activities/file/report01/BRLReports_E.pdf

NTT-BRL Research Activities Vol 19

, high-quality crystal growth, and theoretical studies including first-principle calculations. Optical

https://www.rd.ntt/e/brl/result/activities/file/report08/BRLreport_2008E.pdf

BRLreport_2006E.pdf

appropriate management strategies tailored for each: High-priority research: Work where speed is critically

https://www.rd.ntt/e/brl/result/activities/file/report06/BRLreport_2006E.pdf

Publications

. Inagaki, T. Imai, J. Miyazu, H. Takesue and J. Kobayashi, “Low-voltage optical phase modulation by

https://www.rd.ntt/brl/people/htakesue/papers.html

山本 喜久｜NTT R&D Website

Modulation Scheme in Semi-conductor Light Emitters with Quantum Microcavities: High Speed Intensity

https://www.rd.ntt/organization/authority/008.html

Report_12.pdf

optical modulation properties of the LETs for high-speed operation, which may open an avenue to their

https://www.rd.ntt/brl/result/activities/file/report12/Report_12.pdf

Report_12.pdf

optical modulation properties of the LETs for high-speed operation, which may open an avenue to their

https://www.rd.ntt/e/brl/result/activities/file/report12/Report_12.pdf

BRLReports_E.pdf

. However, Si technology has enabled us to fabricate, in a controlled way, SETs operating at high

https://www.rd.ntt/e/brl/result/activities/file/report02/BRLReports_E.pdf

Nanomechanics Research Group | NTT Basic Research Laboratories | NTT R&D Website

nanoscience and nanotechnology. Message Group Leader Dr. Hajime Okamoto We are working to develop high-speed

https://www.rd.ntt/e/brl/group_introduction/group_014.html