Photonics Spectra: photodiodes This is the syndication feed for Photonics Spectra: photodiodes. https://www.photonics.com/Splash.aspx?Tag=photodiodes Thu, 28 Mar 2024 06:45:50 GMT Thu, 19 Oct 2023 07:00:00 GMT 1800 Modified Photodiode Enables Multifunctional, High-Performance PICs
Thin-film lithium niobate (TFLN) shows strong potential as a platform for integrated photonics, due to its robust electro-optic coefficient, large optical nonlinearity, and wide transparency window.

TFLN is used in the development of various optoelectronic components, but most TFLN devices must rely on external lasers and photodetectors because lithium niobate (LN) does not natively provide a light source and photodetection. An on-chip, integrated, high-performance photodetector is essential to exploit TFLN’s potential as a photonics integrated circuit (PIC) platform.
(a) TFLN wafer with pre-defined waveguide and passive components. (b) Bare InP/InGaAs wafer. (c) InP/InGaAs wafer and TFLN wafer bonding. (d) InP/InGaAs wafer...]]>
https://www.photonics.com/Articles/Modified_Photodiode_Enables_Multifunctional/p5/a69407 A69407 Thu, 19 Oct 2023 07:00:00 GMT
Module Uses Single-photon Microscopy to Track Cellular Activity
BrightEyes-TTM, an open-source time-tagging module (TTM) developed at the Italian Institute of Technology (IIT), enables scientists to observe the dynamic processes of molecules inside living cells over time, at a thousandth of a millisecond scale. BrightEyes-TTM can be used to study the variations that occur at the cellular level when a healthy cell becomes diseased.

The module is designed to enable implementation of fluorescence single-photon laser-scanning microscopy (SP-LSM) techniques, and works with the single-photon avalanche diode (SPAD) array detectors that are used with SP-LSM.

The fluorescent light signals that are emitted by molecules in a cell can be detected by a SPAD array detector. The time between when light is...]]>
https://www.photonics.com/Articles/Module_Uses_Single-photon_Microscopy_to_Track/p5/a68737 A68737 Fri, 03 Feb 2023 07:00:00 GMT
Dual-Band IR Detector Can Be Integrated into Camera Chips
The liquids isopropanol and toluene appear transparent when viewed with the naked eye. However, when viewed in the NIR and SWIR ranges, the differences between the two become apparent, because each solvent absorbs a different amount of NIR and SWIR light. Courtesy of E. Silmola et al., “CMOS-Compatible Bias-Tunable Dual-Band Detector Based on GeSn/Ge/Si Coupled Photodiodes,” ACS Photonics, 2021, 8, 7, 2166-2173 (CC BY-NC-ND 4.0).

Scientists at the Forschungszentrum Jülich (Jülich Research Center) and the Politecnico di Milano (Polytechnic University of Milan) have developed an infrared (IR) detector that provides a bias-switchable spectral response in two distinct IR bands. When the bias voltage for the detector...]]>
https://www.photonics.com/Articles/Dual-Band_IR_Detector_Can_Be_Integrated_into/p5/a67357 A67357 Wed, 22 Sep 2021 11:32:00 GMT
Luminar to Acquire its Exclusive Lidar Chip Partner
Luminar is combining the latest technology from OptoGration and BFE to power its new fifth-generation lidar chip in Iris, the company’s lidar sensor, as the company prepares for series production of its product and technology. Luminar combines its InGaAs photodetector chips from OptoGration with silicon ASICs produced by BFE, to create its lidar receiver and processing chip. The chip can acquire and process gigabits...]]>
https://www.photonics.com/Articles/Luminar_to_Acquire_its_Exclusive_Lidar_Chip/p5/a67182 A67182 Wed, 21 Jul 2021 07:00:00 GMT
LASER COMPONENTS Detector Group Opens Facility
LASER COMPONENTS Detector Group opened its new 29,000-sq-ft facility in Chandler, Ariz. The Phoenix-area facility features cleanrooms optimized to ensure safe materials transfer and strict particle control; floor, workstation, and cleanroom clothing are all protected against electrostatic discharge.

LASER COMPONENTS Detector Group moved to its new location in Chandler, Ariz., after a year of construction. Courtesy of LASER COMPONENTS. LASER COMPONENTS’ Detector Group develops and manufactures semiconductor detectors, including for silicon and InGaAs avalanche photodiodes and pyroelectric detectors.]]>
https://www.photonics.com/Articles/LASER_COMPONENTS_Detector_Group_Opens_Facility/p5/a66450 A66450 Thu, 03 Dec 2020 07:00:00 GMT
Large-Area Organic Photodiodes Offer Cost-effective Alternative to Silicon Sensors
A research team at Georgia Tech has demonstrated that large-area organic photodiodes, produced from solutions at low temperatures, can detect several hundred thousand photons every second. The process, the researchers said, is conceptually similar to the magnitude of light reaching a human’s eye from a single star. The low-noise and highly flexible organic devices allowed the researchers to substitute arbitrarily shaped, large-area photodiodes for the type of complex arrays that silicon photodiodes — which are more conventional — necessitate. Those arrays are expensive to scale up for large-area applications.

Except for response time, the researchers’ devices delivered performance comparable to that of rigid...]]>
https://www.photonics.com/Articles/Large-Area_Organic_Photodiodes_Offer/p5/a66369 A66369 Thu, 05 Nov 2020 14:03:35 GMT
Hourglass-Shaped Silicon Photodiodes Provide Greater Sensitivity
A team of researchers from Pohang University of Science and Technology have developed near-infrared (NIR) photodiodes from silicon that are approximately one-third more sensitive than existing photodiodes.

Existing NIR photodiodes are typically made of chemical materials that require separate cooling devices and are difficult to integrate. The researchers, led by professor Chang-Ki Baek, used hourglass-shaped silicon nanowires to increase silicon’s absorption of NIR light.
Courtesy of Pohang University of Science and Technology.
The upper inverted nanocone of the nanowires increases absorption probability by extending the dwell time of NIR-SWIR photons via the generation of whispering-gallery-mode resonances, whereas the...]]>
https://www.photonics.com/Articles/Hourglass-Shaped_Silicon_Photodiodes_Provide/p5/a65343 A65343 Mon, 02 Dec 2019 14:54:42 GMT
3D-Printed Photodetectors Could Be Basis for 'Bionic Eye'
A University of Minnesota research team has 3D-printed an array of light receptors on a hemispherical surface, in a first step toward creating a “bionic eye” that could someday help blind people see or sighted people see better.

Using their custom-built 3D printer, the researchers started with a base ink of silver particles. The ink, when dispensed on the surface of a hemispherical glass dome, stayed in place and dried uniformly instead of running down the curved surface. The researchers then used semiconducting polymer materials to 3D-print photodiodes, which convert light into electricity. The high-performance polymer-based photodetectors were characterized, and the devices were integrated into image sensing arrays with...]]>
https://www.photonics.com/Articles/3D-Printed_Photodetectors_Could_Be_Basis_for/p5/a63858 A63858 Thu, 30 Aug 2018 15:35:54 GMT
Industry Pushes New Technologies, Applications for Lidar
Digitalization of the world requires detection tools able to recognize objects and precisely measure distances quickly. Lidar-based monitoring systems are a key part of this current technological revolution because their high accuracy and speed can be used to make digital 3D representations of the target. In the media, most lidar applications discussed are related to autonomous driving, but lidar also currently finds application in robotics and industrial markets, construction (geographical survey) and the military (payload). However, the technology today is too bulky and its current pricing too high for it to massively enter the markets.

Ultracompact pulsed fiber laser for lidar applications. Courtesy of MWTechnologies.
...]]>
https://www.photonics.com/Articles/Industry_Pushes_New_Technologies_Applications/p5/a62675 A62675 Tue, 24 Oct 2017 09:15:17 GMT
For Ultrafast Photonics, New Applications Emerge
Ultrafast lasers can do a lot, including create a room-temperature superconductor. That type of material transformation is just one emerging area of ultrafast photonics. Today, new ultrafast photonics applications found in lasers and sensors enable systems to see deep into tissue and improve radar performance. Tomorrow, the technology could combat climate change, via more energy-efficient magnetic polarity switching, by transforming ceramics into room-temperature superconductors and more.

An example of a new use of ultrafast photonics improves the performance of radio-frequency (RF) signal processing. This is critical to building better radar and communication systems that must operate at frequencies in the hundreds of gigahertz. The...]]>
https://www.photonics.com/Articles/For_Ultrafast_Photonics_New_Applications_Emerge/p5/a62317 A62317 Mon, 31 Jul 2017 13:53:28 GMT
Advanced Photonix Awarded $1.6M Navy Contract
The devices will serve as detectors for the Guided Missile Weapon System, which features guided missiles designed to protect ships of all sizes, destroy anti-ship missiles and provide high firepower capability for engaging multiple threats simultaneously.

The missile’s airframe system rotates for greater accuracy, which requires the mounting of four detectors spaced at 90° from each other. The new photodiodes will be mounted on the missile’s proximity sensing detectors.

Advanced Photonix has previously provided the military with components for head-up displays, satellite positioning, laser range...]]>
https://www.photonics.com/Articles/Advanced_Photonix_Awarded_16M_Navy_Contract/p5/a56688 A56688 Tue, 16 Sep 2014 00:00:00 GMT
Sensor reads single photons ultrafast
In imaging, every single photon counts. Now, thanks to an ultrasensitive sensor, individual photons can be read within a few picoseconds, yielding high-quality images even in extremely low-light situations.

Fraunhofer Institute for Microelectronic Circuits and Systems IMS has advanced the development of CMOS technology and introduced a diode based on single-photon avalanche photodiodes. Its pixel structure can count single photons 1000 times faster than other models.

It is now possible to process digital image signals directly on the microchip, according to new research out of Fraunhofer Institute for Microelectronic Circuits and Systems.
Fast, ultrasensitive optical systems are becoming increasingly important for medical...]]>
https://www.photonics.com/Articles/Sensor_reads_single_photons_ultrafast/p5/a52950 A52950 Tue, 01 Jan 2013 00:00:00 GMT
Sensor Reads Single Photons Ultrafast
In imaging, every single photon counts, and now, thanks to an ultrasensitive sensor, those individual photons can be read within a few picoseconds, yielding high-quality images even in extremely low-light situations.

Fraunhofer Institute for Microelectronic Circuits and Systems IMS has advanced the development of CMOS technology and introduced a diode based on single-photon avalanche photodiodes. Its pixel structure can count single photons 1000 times faster than comparable models.

It is now possible to process digital image signals directly on the microchip, according to new research out of Fraunhofer Institute for Microelectronic Circuits and Systems. Courtesy of ©Fraunhofer IMS.
Fast, ultrasensitive optical systems...]]>
https://www.photonics.com/Articles/Sensor_Reads_Single_Photons_Ultrafast/p5/a52261 A52261 Wed, 07 Nov 2012 00:00:00 GMT
Discovery Semiconductors’ Photodiodes Are Good Travelers
The photodiodes were part of the Materials International Space Station Experiment 7 mission, which launched Nov. 16, 2009, on the space shuttle Atlantis. They returned June 1, 2011, on the Endeavor space shuttle. NASA’s Langley Research Center launched them as part of its lidar transceiver components and recently released them to Discovery Semiconductors for further study.

“Over the next few months, we will be studying carefully not only the electro-optical characteristics of these InGaAs photodiodes, but also other parts of the modules such as fiber optic...]]>
https://www.photonics.com/Articles/Discovery_Semiconductors_Photodiodes_Are_Good/p5/a51041 A51041 Mon, 04 Jun 2012 00:00:00 GMT
Hamamatsu Brings NanoZoomer Distribution In-House
Effectively immediately, Hamamatsu is responsible for the sales, marketing, and technical and application support of the NanoZoomer product line for new customers throughout North America. Existing customers with active service contracts should continue to contact their current service provider.

The NanoZoomer converts glass slides into digital slides quickly and accurately for viewing and analyzing slide-mounted tissue at any resolution for both bright-field and fluorescence applications.

Hamamatsu Corp., the North American subsidiary of Hamamatsu...]]>
https://www.photonics.com/Articles/Hamamatsu_Brings_NanoZoomer_Distribution_In-House/p5/a50561 A50561 Fri, 06 Apr 2012 00:00:00 GMT
Emcore Selling VCSEL Assets for $17M
The VCSEL is the preferred light source for data transmission in short-distance links, interconnects for data center and local networks (LANs, SANS, etc.). The VCSEL-based module products are designed to enable next-generation data interconnect capabilities for service providers and OEMs. Applications include rack-to-rack, ganged serial links, logic-logic...]]>
https://www.photonics.com/Articles/Emcore_Selling_VCSEL_Assets_for_17M/p5/a50480 A50480 Wed, 28 Mar 2012 00:00:00 GMT
Bob Laser Presents Range of Laser Diodes
808, 650, 405, 445, 635, 830, 980, 1310, 1550 nm laser diodes green/red/blue line, dot laser modules beam expander laser module visual fiber fault identifiers laser lenses Bob Laser has set up three production lines, namely, laser diode and photodiode packaging, optical transceivers, and coupling devices. Its main products are as follows:

laser diodes: laser diode (visible and infrared), laser package and the different emission wavelength (0.6 to 0.98 μm), various power (200 mW to 5 W), a variety of packages (TO-18, TO-5, TO-3, C-mount , pigtail type plug) laser modules:...]]>
https://www.photonics.com/Articles/Bob_Laser_Presents_Range_of_Laser_Diodes_/p5/a45854 A45854 Wed, 09 Feb 2011 00:00:00 GMT
Opto Diode Acquires International Radiation Detectors
IRD’s operations will be moved and incorporated in to Opto Diode’s domestic facility in Newbury Park by mid-January. Raj Korde, founder of IRD, and his associate, Dejan Jovanovic, will join Opto Diode as full-time members.

“We are extremely pleased to announce this acquisition and we look forward to offering the IRD brand radiation detectors for the measurement of visible, ultraviolet, extreme ultraviolet and soft x-ray photonics,” said Russ Dahl, general manager of Opto Diode.

The company will...]]>
https://www.photonics.com/Articles/Opto_Diode_Acquires_International_Radiation/p5/a45454 A45454 Tue, 11 Jan 2011 00:00:00 GMT
HELIOS Shows Off Laser Silicon Progress
Silicon photonics is an emerging technology for overcoming electrical connections’ limits in processing increasingly data-rich content and reducing the cost of photonic systems by integrating optical and electronic functions on the same chip. It may enable low-cost solutions for applications including optical communications, chip-to-chip and rack-to-rack connections, data-center cables, optical signal processing, optical sensing and biology....]]>
https://www.photonics.com/Articles/HELIOS_Shows_Off_Laser_Silicon_Progress_/p5/a45107 A45107 Wed, 24 Nov 2010 00:00:00 GMT
RS Components offers host of optoelectronic devices
RS Components is a leading industrial component distributor with a wide range of Industrial products in research and development, maintenance and prototype development. Headquartered in Corby, U.K., RS Components offers its customers the convenience of choosing from a range of over 300,000 world-class products from 2000 leading global brands.

The company’s agenda is to be the most cost-effective and reliable way for its customers to purchase their small-volume products. These are said to be their key differentiators:

• Offering over 300,000 world-class...]]>
https://www.photonics.com/Articles/RS_Components_offers_host_of_optoelectronic/p5/a44244 A44244 Thu, 16 Sep 2010 00:00:00 GMT