TranSpread Has Reported Ultra-wideband Heterogeneous Integrated Photodiodes on Thin-film Lithium Niobate Platform
Oct 6, 2023
Fayetteville, Georgia Oct 5, 2023 (Issuewire.com) - Thin-film lithium niobate (TFLN) is considered as a promising platform for photonics integrated circuits due to its tight mode confinement, high nonlinear efficiency and wide transparency window. Chinese scientists have recently reported an ultra-wideband waveguide-coupled photodiode on the TFLN platform. This photodiode achieved a 3-dB bandwidth of 110 GHz and a responsivity of 0.4 A/W at 1,550 nm wavelength. This study is important for the development of large-scale, multifunctional, and high-performance TFLN photonic integrated circuits.
Owing to its strong electro-optic coefficient and wide transparency window, lithium niobate (LN) has become an attractive photonic material. Thin-film lithium niobate (TFLN) technology has enabled tight mode confinement and high nonlinear efficiency. Various compact integrated photonics devices have been realized on the TFLN platform, such as compact high-performance modulators, polarization management devices, and broadband frequency comb sources. However, the inherent difficulty of lithium niobate in realizing light sources and photodetector poses a challenge for the TFLN integrated photonics platform. As an essential optoelectronic component, an on-chip integrated high-performance photodetector is vital for TFLN photonic integrated chips.
In a new paper published in Light: Advanced Manufacturing, a research team, led by Professor Xiaojun Xie and Lianshan Yan from Key Laboratory of Photonic-Electric Integration and Communication-Sensing Convergence, School of Information Science and Technology, Southwest Jiaotong University, China, has reported a high-speed and high-responsivity modified uni-traveling carrier photodiodes heterogeneously integrated on the TFLN platform. The device exhibits a 3-dB bandwidth of 110 GHz and a responsivity of 0.4 A/W at a wavelength of 1,550-nm wavelength.
The fabrication process was initialized by the dry etching of LN waveguides and passive devices. A hybrid etching approach was followed to form device mesa. After metal plating and lift-off, the chips were diced and polished. Epitaxial layer structure, LN waveguide geometry, and CPW pad geometry were optimized to achieve both large bandwidth and high responsivity. To further assess the performance of the devices, the team applied these devices to a data transmission system and successfully detected PAM4 signals at 32 Gbaud with high quality. It was demonstrated that the heterogeneously integrated photodiodes on the TFLN platform have the potential to be applied in the next-generation high-speed transmission systems.
This work paves the way to achieving massive-scale, multi-function, and high-performance TFLN photonic integrated circuits. Moreover, it holds promise for ultra-high-speed optical communications, high-performance integrated microwave photonics, and multi-function integrated quantum photonics
Additional information
Funder
This work was supported by the National Key Research and Development Program of China under Grant No. 2022YFB2803800; and Fundamental Research Funds for the Central Universities of China under Grant No. 2682022CX025.
DOI
10.37188/lam.2023.030
Origrinal URL
https://doi.org/10.37188/lam.2023.030
About Light: Advanced Manufacturing
Light: Advanced Manufacturing (LAM) is a new, highly selective, open-access, and free of charge international sister journal of the Nature Journal Light: Science & Applications. The journal aims to publish innovative research in all modern areas of preferred light-based manufacturing, including fundamental and applied research and industrial innovations.
About TranSpread
TranSpread is an expert team made up of international tech media professionals and seasoned international academic publishers. Equipped with extensive international media publishing resources and experience in operating new media for scientific and technological journals, our primary objective is to offer a full suite of overseas promotion services for journals. We strive to enhance the overall overseas promotion of articles, broaden journal exposure, escalate global attention, and swiftly amplify the international impact of these journals. Our professional TranSpread team is dedicated to providing superior-quality overseas promotion services for journals, thereby empowering them to wield greater influence in the international academic landscape.
Website: www.maxapress.com/TranSpread
Media Contact
TranSpread
8654055638
1833 Highway 85 S Fayetteville, GA 30215-2903
Source :TranSpread
This article was originally published by IssueWire. Read the original article here.
More News
Visit Europe And We'll Guess Your Favorite European Food!
I loveeeee a British breakfast! View Entire Post ›
Scotland’s wild wellness boom, from Gleneagles to Loch Lomond
For a while, the blueprint for a serious wellness trip looked pretty much the same everywhere. A flight to somewhere warm, a resort with a view of jungle or terraced rice paddies, a treatment menu borrowing names from ancient traditions, and enough linen to last a lifetime. Scotland was never really part of that picture. It was the place people went for whisky, castles and rain, not the place they went to reset. Then this summer, Scotland’s men’s football team appeared at their first World Cup...
Do you have empty nest syndrome? 5 signs – and expert ways to cope
If you feel lost or overwhelmed now your children have left the nest, you are far from alone. Many parents experience empty nest syndrome at this time of the year. “Empty nest syndrome isn’t a mental health condition, but a set of feelings or symptoms that parents might feel when all their children have left home,” says Dr Elizabeth Wakeland, consultant, clinical and forensic psychologist at Cygnet Health Care in the UK. “It’s a period of significant life change where parents are trying to...
Torrential rains hit Orange County, send visitors scrambling for cover at Disneyland
A powerful, brief downpour sent Disneyland visitors scrambling for cover Friday night, closed rides and flooded parts of Frontierland as workers tried to clear backed-up drains.
I Don't Travel Without My Rescue Pup, So I Combed The Internet For These 9 Airline-Friendly Carriers
Make your travel plans with your pup a walk in the park. View Entire Post ›
Meet Tom Rhys Harries, star of DC’s body-horror Clayface
With Clayface, DC trades its usual cape-donning heroes for a chilling entry into body-horror cinema. Starring Tom Rhys Harries, the film follows Matt Hagen (played by Harries), a Hollywood star from Gotham whose run-in with a crime boss leaves his face severely disfigured. Desperate to restore himself, Hagen turns to Dr. Caitlyn Corr (Naomi Ackie), whose experimental treatment makes matters worse. So Hagen finds himself on a path from Hollywood’s charming leading man to a Gotham City...
Mt. Waterman ski resort near L.A. relisted for $3.3 million after deal falls through
The historic Mt. Waterman Ski Resort, one of Southern California's steepest ski resorts and only an hour from downtown Los Angeles, was relisted for sale on Wednesday at $3,275,000.
I Spent 5 Days In One Of America's Most Overlooked Places, And I Think I Found My New Favorite Place On Earth
If you know, you really know. View Entire Post ›
Baoji Marathon draws 31,000 runners, highlights ancient culture
From race shirts to finisher medals, the 2026 Baoji Marathon in northwest China's Shaanxi Province brings Baoji's history and culture onto the course.
Who is Kim Jae-young, imposing star of K-dramas Make Me Tingle and The Judge from Hell?
Korean actor Kim Jae-young and his signature locks are back on screen in the currently airing romcom Make Me Tingle, where he takes on the daring role of a sex toy entrepreneur. Since his 2013 acting debut, Kim has played a variety of brooding characters that take advantage of the lithe, imposing frame that helped him start in entertainment as a model. However, Kim was not initially aiming for a career in front of the camera. Rather, he harboured an ambition to be a chef and has said in...
43 Packing Tips So You Can Save That Checked Luggage Fee To Spend On Your Actual Trip
That checked bag? Turns out you won't need it after all. View Entire Post ›
Europe’s most underrated Christmas markets revealed
While Europe’s biggest Christmas markets attract millions of visitors every year, many travellers are seeking lesser-known festive destinations. Travel experts at eShores have revealed five underrated Christmas markets worth adding to this year’s winter travel plans based on their festive charm and growing search interest.
YOUR NEWS, OUR NETWORK.
Do you have Great News you want to tell the world?
Be it updates about your business or your community, you can make sure that it’s heard by submitting your story to our network reaching hundreds of news sites across 6 verticals.