tag: silicon photonics

III–V Laser Grown on a Patterned Si Photonics Platform With Light Coupling Into Passive SiN Waveguides
By Technical Paper Link - 28 Jul, 2023 - Comments: 0

A technical paper titled “Unlocking the monolithic integration scenario: optical coupling between GaSb diode lasers epitaxially grown on patterned Si substrates and passive SiN waveguides” was published by researchers at University of Montpellier, Tyndall National Institute, Munster Technological University and Polytechnic University of Bari. Abstract: "Silicon (Si) photonics has recently... » read more

New Standards Push Co-Packaged Optics
By Karen Heyman - 26 Apr, 2023 - Comments: 0

Co-packaged optics (CPOs) promise five times the bandwidth of pluggable connections, but the new architecture requires multiple changes to accommodate different applications. The Optical Internetworking Forum (OIF) recently published standards for co-packaged optics, which are the photonic industry’s hope for handling today’s faster Ethernet interfaces, as well as increasing speeds and p... » read more

Research Bits: April 4
By Jesse Allen - 04 Apr, 2023 - Comments: 0

Wet-like plasma etching Researchers from Nagoya University and Hitachi developed a new etch method called wet-like plasma etching that combines the selectivity of wet etching with the controllability of dry etching. The researchers say the technique will make it possible to etch complex structures such as metal carbides consisting of titanium (Ti) and aluminum (Al), such as TiC or TiAlC, wh... » read more

Integrating MEMS with Standardized Silicon Photonics Technology
By Technical Paper Link - 23 Mar, 2023 - Comments: 0

A new technical paper titled "Integrated silicon photonic MEMS" was published by researchers at EPFL, University of Sydney, CSEM, KTH Royal Institute of Technology, Ghent University, Imec, and Tyndall National Institute. Abstract Excerpt "Here, we introduce a silicon photonic MEMS platform consisting of high-performance nano-opto-electromechanical devices fully integrated alongside standar... » read more

Standards: The Next Step For Silicon Photonics
By Karen Heyman - 07 Mar, 2023 - Comments: 0

Testing silicon photonics is becoming more critical and more complicated as the technology is used in new applications ranging from medicine to cryptography, lidar, and quantum computing, but how to do that in a way that is both consistent and predictable is still unresolved. For the past three decades, photonics largely has been an enabler for high-speed communications, a lucrative market t... » read more

Chip Sandwich: Electronics Chip & Photonics Chip Co-Optimized To Work Together (CalTech/Univ. of Southampton)
By Technical Paper Link - 01 Dec, 2022 - Comments: 0

A technical paper titled "A 100-Gb/s PAM4 Optical Transmitter in a 3-D-Integrated SiPh-CMOS Platform Using Segmented MOSCAP Modulators" was published by researchers at CalTech and University of Southampton. "The resulting optimized interface between the two chips allows them to transmit 100 gigabits of data per second while producing just 2.4 pico-Joules per transmitted bit. This improves th... » read more

Wafer-Scale Variability In Photonic Devices & Effects On Circuits
By Technical Paper Link - 25 Nov, 2022 - Comments: 0

A technical paper titled "Capturing the Effects of Spatial Process Variations in Silicon Photonic Circuits" was published by researchers at Photonics Research Group, Ghent University−IMEC. "We present in this paper a method to extract a granular map of the line width and thickness variation on a silicon photonics wafer. We propose a hierarchical model to separate the layout-dependent and l... » read more

Scalable Optical AI Accelerator Based on a Crossbar Architecture
By Technical Paper Link - 08 Nov, 2022 - Comments: 0

A new technical paper titled "Scalable Coherent Optical Crossbar Architecture using PCM for AI Acceleration" was published by researchers at University of Washington. Abstract: "Optical computing has been recently proposed as a new compute paradigm to meet the demands of future AI/ML workloads in datacenters and supercomputers. However, proposed implementations so far suffer from lack of sc... » read more

Modeling Silicon Photonics Process Parameter Variations In Synopsys OptoCompiler-OptSim
By Synopsys - 08 Nov, 2022 - Comments: 0

Silicon photonics (SiPh) refers to the enablement of photonic integrated circuits (PIC) over silicon wafer. SiPh enables compatibility with existing CMOS manufacturing infrastructure for large-scale integration and brings the associated benefits to the photonics, namely, lower footprint, lower thermal effects, and co-packaging of electronics and photonics on the same chip. One of the side-effec... » read more

Using Silicon Photonics To Reduce Latency On Edge Devices
By Technical Paper Link - 26 Oct, 2022 - Comments: 0

A new technical paper titled "Delocalized photonic deep learning on the internet’s edge" was published by researchers at MIT and Nokia Corporation. “Every time you want to run a neural network, you have to run the program, and how fast you can run the program depends on how fast you can pipe the program in from memory. Our pipe is massive — it corresponds to sending a full feature-leng... » read more

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