KYOTO-SEMICONDUCTOR
1.7.2020 08:15:14 CEST | Business Wire | Press release
Kyoto Semiconductor Co., Ltd. (headquartered in Kyoto, Japan) has developed a high-speed photodiode KP-H KPDEH12L-CC1C to support 400Gbps transmission systems that use PAM4 (Pulse Amplitude Modulation 4) inside and between data centers. With the introduction of this InGaAs photodiode, the company is continually supporting the increasing speeds and capacity requirements for transmission systems in 5G networks and beyond. Mass production will start in November, 2020.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20200630006142/en/
KP-H KPDEH12L-CC1C main features
(1) High-speed
The size of the carrier on which the PD is mounted, and the width and length of the high frequency electrode pattern placed on the carrier are optimized using an electromagnetic simulation (Note 2). As a result, we have achieved the world’s top class 400Gbps and 40GHz as a frequency band with an integrated transimpedance amplifier. The KP-H photodiode has passed Telcordia GR-468-Core, which is the standard reliability test for communication equipment.
(2) Easy implementation
KPDEH12L-CC1C is mounted on a carrier that is optimally designed to achieve high frequency. A condenser lens is integrated on the backside of the photodiode (Note 3), allowing the incoming light to collect in the light absorption area, and makes it easy to align the optical fiber with PD. The PD chip is mounted on a carrier twice as big as the chip itself.
Background of development
Currently, we have achieved transmission speeds of mainly 100Gbps by bundling 4 lanes of 25Gbps. However, there are growing demands in the market for 400Gps to 800Gbps transmission speeds. The Institute of Electrical and Electronics Engineers (IEEE) set the standard of PAM4 that corresponds with 4-bit signal to one modulation. The transmission speed per PD reaches 50Gps (= 400Gps/4 lanes/2 (PAM4)). The transmission bandwidth required for the PD to achieve this speed will be 35~40GHz.
See the following for more information. https://www.kyosemi.co.jp/en/lp/kpdeh12l-cc1c
About Kyoto Semiconductor
Kyoto Semiconductor was established in 1980 in Kyoto as a dedicated manufacturer of semiconductors. The semiconductors manufactured offer superlative performance and precision, suited for use in optical transmission. They are manufactured end-to-end, including pre- and post-processing, and together with Kyoto Semiconductor’s unique packaging technology, at our location in Japan and made available to customers around the world. Kyoto Semiconductor leads the industry with world-standard technologies for optical device solutions based on Japanese quality and attention to production detail.
Notes
1) 4- level modulation method 8PAM 4 (Pulse Amplitude Modulation 4)
Instead of mounting 2-bit information {0, 1} for one modulation, the method mounts 4-bit information {0, 1, 2, 3}. This method allows transmission of twice as much information as conventional method.
2) Carrier
The patterns with little attenuation in the high-frequency are formulated on the surface of the board on which the PD is mounted. The dimension of the carrier is 0.6 x 0.48 x 0.25 t
mm.
3) Condenser lens
The figure shows a schematic view of the PD chip. A condenser lens is built into the surface where the light enters, and is focused and collected on a small light absorption layer.
© 2020 Kyoto Semiconductor, Co Ltd. All rights reserved. Information in this press release, including product pricing and specifications, content of services, and contact information is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Kyoto Semiconductor product specifications.
View source version on businesswire.com: https://www.businesswire.com/news/home/20200630006142/en/
Link:
About Business Wire
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
Cognite Positioned as a Front Runner in LNS Research Solution Selection Matrix for Industrial AI Platforms23.4.2026 20:00:00 CEST | Press release
Cognite, the global leader in Industrial AI, has been named a Front Runner in the LNS Research Solution Selection Matrix for Industrial AI Platforms (SSM). The LNS Research SSM evaluates vendors using a rigorous methodology that leverages its “3P” framework—Product, Potential, and Presence—to assess both current capabilities and future readiness. Within the report, Cognite is recognized in three key areas: depth in user-centric industrial AI applications, its knowledge graph-based data model, and its strong partner ecosystem. Together, all three give Cognite the ability to unify and contextualize complex industrial data, enabling organizations to operationalize AI at scale. “Cognite brings a sophisticated data model built for industrial complexities, along with advanced analytics and AI-driven insights, which is crucial for industrial organizations to achieve meaningful productivity gains and enterprise-wide ROI,” said Vivek Murugesan, Research Analyst at LNS Research. “These capabilit
Venture Global Announces Closing of $750,000,000 Senior Secured Notes by Venture Global Calcasieu Pass, LLC23.4.2026 19:47:00 CEST | Press release
Venture Global, Inc. (“Venture Global”, NYSE: VG) announced today that its subsidiary, Venture Global Calcasieu Pass, LLC (“VGCP”) has closed an offering of $750,000,000 aggregate principal amount of 6.000% senior secured notes due 2036 (the “Notes”). The Notes will mature on May 1, 2036. VGCP used the net proceeds from the offering, together with cash on hand and proceeds received from certain hedge terminations, for the prepayment, in full, of VGCP’s outstanding term loans, and to pay fees and expenses in connection with the offering. The Notes are guaranteed by TransCameron Pipeline, LLC (VGCP’s affiliate). The Notes are secured on a pari passu basis by a first-priority security interest in the assets that secure VGCP’s existing senior secured first lien credit facilities and VGCP’s existing senior secured notes. The Notes were not registered under the Securities Act of 1933, as amended (the “Securities Act”) or the securities laws of any state or other jurisdictions, and the Notes
Does Muscle Composition Identify High-Risk Individuals in Chronic Kidney Disease? New AMRA Medical Study Says Yes, Reveals Strong Link to Mortality23.4.2026 17:10:00 CEST | Press release
AMRA Medical researchers recently set out to answer the question: what is the relationship between adverse muscle composition (AMC) and mortality in kidney disease? Recent findings demonstrate that AMC, characterized by low muscle volume z-score and high muscle fat infiltration, is an independent and strong predictor of all-cause mortality in individuals with chronic kidney disease (CKD). The findings, published in Clinical Journal of the American Society of Nephrology, were based on data from the UK Biobank imaging study and further reinforce the clinical relevance of MRI-derived muscle biomarkers in identifying high-risk populations across chronic diseases. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260423198497/en/ AMRA's MRI-based muscle biomarkers in clinical trials Researchers from AMRA, alongside our collaborators at Linköping University (LiU), analyzed 894 participants with CKD using AMRA’s MRI-based body composi
Diligent Unveils AI Board Member and Agentic GRC Workforce at Elevate 202623.4.2026 15:00:00 CEST | Press release
Diligent’s agentic AI strengthens board oversight and transforms how GRC teams work — reducing manual effort and outside-advisor dependency, tightening control over sensitive workflows and enabling leaders to make faster, more defensible decisions Diligent, the AI leader in governance, risk and compliance (GRC) SaaS solutions, today unveiled a new generation of autonomous AI agents, including AI Board Member — a secure AI assistant for directors — and a coordinated network of agents embedded across the Diligent One Platform. Accessible through a single command center, agents automate multi-step workflows across governance, risk, compliance and third-party management, giving organizations the impact of a “GRC manager” without adding headcount. “AI supercharges teams that embrace it, and boards are no exception,” said Brian Stafford, President and CEO of Diligent. “With AI Board Member and a network of autonomous agents woven through the Diligent One Platform, we’re giving the C-suite an
Safe Software Bolsters Leadership Team with CFO and CPO Appointments to Drive Next Phase of Growth23.4.2026 15:00:00 CEST | Press release
CFO and CPO executive hires to enhance operational and financial performance on the company’s path to $250M by 2028 Safe Software (Safe), creator of FME, the only All-Data, Any-AI enterprise integration platform, today welcomes two executives to its leadership team as it moves into the next phase of growth. Judd Lee has been appointed as the company’s Chief Financial Officer (CFO), and Vanessa Ribreau has been appointed as Chief People Officer (CPO). Having recently crossed $100M in revenue, the expanded leadership team will further enable the company to scale as it accelerates toward its goal of reaching $250M in revenue by 2028. Judd Lee is a seasoned CFO with over 15 years of experience partnering closely with CEOs to align financial strategy and accelerate sustainable growth. He is known for his strong commitment to mentorship and for building high-performing global teams rooted in trust, morale and a shared sense of purpose. With more than two decades of financial leadership acros
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom