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semiconductor lasers Features
Outshining LEDs: Diode Lasers Deliver Intensity to Illumination
The development of light-emitting diode (LED) lighting has been a great success story of our times. LEDs are nearly ideal light sources that have largely replaced other lighting technologies, except in some niche applications. Solid-state lighting is now developing in directions such that even the few remaining areas served by discharge lamps will largely adapt to semiconductor-based light sources in the coming years. In practice, laser-diode lighting systems require a complex mix of
Photonics Spectra, July 2022
Advancements in Diode Lasers Fuel Automotive Lidar
Lidar for autonomous vehicles debuted in 2007 as an enabling sensor technology for robotaxis and robotruck development. Within the last five years, however, the technology has trended toward broader commercialization in mass-market passenger...
Photonics Spectra, March 2022
With Innovations, Lasers Boost Performance
With their performance rising, semiconductor lasers may be able to best their fiber-based counterparts in a wide variety of applications. On the horizon are potential game changers, such as high-power blue laser diodes and organic laser diodes. But...
Photonics Spectra, January 2020
On the Shoulders of Giants
For millennia, scholars in the old and new worlds have realized that their efforts depend largely on the works of those who came before. The “eureka!” moments experienced by scientists and other observers of nature do arise, but there...
Photonics Spectra, June 2019
A History of the Laser: 1960 - 2019
In 2020, the laser turns 60. This is a timeline of some of the more notable scientific accomplishments related to light amplification by stimulated emission of radiation (laser). An interactive version of the laser timeline is available, as well as...
Photonics Spectra, June 2019
Trends in Silicon Photonics for Fiber Optic Communication
The simplest form of fiber optic communication is coupling a laser to one end of a fiber, turning the laser on and off to transmit ones and zeros, and connecting a photodetector to the other end to record the photocurrent. This simple modulation...
Photonics Spectra, January 2019
Member Exclusive
Semiconductor Lasers Power Up
Improvements to semiconductor lasers promise big changes, from increases in power to expanded wavelengths. Other innovations could mean faster data rates for a bandwidth-hungry world. And then there are self-driving cars. Equipped with lidar,...
Photonics Spectra, July 2017
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Overcoming Precision-Guided Munitions, Sensing Challenges
Situational awareness is an ever-increasing challenge for armed forces deployed across vast areas and engaged in multiple conflicts. Modern soldiers have become data collectors in today’s complex command, communication and control systems, and...
Photonics.com, December 2016
Quantum Cascade Laser Breakthrough for Advanced Remote Detection
The atoms in a molecule can bend, stretch and rotate with respect to one another, and these excitations are largely optically active. Most molecules, from simple to moderately complex, have a characteristic absorption spectrum in the 3- to...
Photonics Spectra, November 2016
Ultrashort Pulse Laser Micromachining Surpasses Previous Limitations
To fulfill current and future customer needs in the ultrashort pulse (USP) laser micromachining market, faster processing time is critical. In only the last few years the average power of these lasers has risen continuously, reaching an average...
Photonics Spectra, June 2016
Member Exclusive
Lighting Up Microscopes: Advances and Emerging Sources
Microscope developers are a resourceful bunch, opting to use the light source available to them at the time to peer at or below the surface of various materials. Even dating back to the 17th century, Galileo used sunlight to produce the very first...
Photonics Spectra, June 2016
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An Alternative to LEDs for Full-Field Imaging
For some applications, the defining attributes of traditional lasers — high spatial and temporal coherence — can have an adverse effect. High spatial coherence introduces artifacts such as speckle in imaging, which degrades the image. As...
Photonics Spectra, May 2016
New Markets for High-Power Diode Lasers
New developments in semiconductor laser technology are enabling the use of laser projection for entertainment, while high-beam-quality, near-infrared diode laser modules are aiding materials processing applications. Growth is expected in both of...
Photonics.com, September 2015
Grab Your Shades — The Laser Market Has a Bright Future
Growing demand for advanced technology in the defense and security, industrial, and medical markets is driving laser industry evolution. Encouraged by technological advancements, new and innovative applications, and progressively declining...
Photonics Spectra, July 2015
Lasers Go To The Movies
Laser technology is poised to bring back the magic to 3-D cinema – and bring audiences back to theaters in droves. Just five short years ago, the world was hypnotized by the release of the first commercially successful 3-D movie,...
Photonics Spectra, March 2015
Diode Lasers Break into New Wavelengths, New Applications
New wavelengths, new production technologies and microassembly are all expected to help extend the reach of diode lasers in the future. The field of diode lasers is a dynamic, fast-developing area, enabling new applications to emerge continuously....
Photonics.com, September 2014
Mid-IR Semiconductor Lasers Enable Sensors for Trace-Gas-Sensing Applications
Commercial and research QCL sources can target strong fundamental rotational-vibrational gas absorption lines in the mid-IR spectral range and pure rotational lines in the terahertz range that are one to two orders of magnitude stronger than...
Photonics Spectra, June 2014
Better Lasers, Better Computing
To take communications to the next level, laser technologies must improve in terms of cost, efficiency and robustness. Fortunately, those improvements are in the works. Whether traveling through free space or over a fiber, lasers power data delivery...
Photonics Spectra, February 2014
Photonics Steals the Show
The entertainment industry owes a lot to photonics: From laser light displays at concerts to new lens technology for 3-D and other special effects in movies, photonics adds the “wow” factor, thrilling and delighting audiences around the...
Photonics Spectra, May 2013
Challenging Solving Improving
Winners of 2011 Prism Awards represented an intriguing mix of European and US-based small companies and established businesses. This year’s winners include a 60-laser system for inspecting train rails at high speed, a dual-laser source for...
Photonics Spectra, March 2012
Photonic Sensors Help Keep Earth Clean, Green
Spectroscopic, fiber optic sensing, and light detection and ranging (lidar) technologies increasingly are being employed in the wind and geothermal energy sectors; in making fossil fuel exploration, extraction and distribution as well as...
Photonics Spectra, March 2012
Lasers Evolve to Meet the Demands of Optical Communications
Long-distance, high-speed communication depends on lasers to provide the optical power source. But this application is becoming more and more demanding, especially in terms of power consumption, price and bandwidth. With ever-increasing demands on...
Photonics Spectra, February 2012
Quantum Cascade Lasers Enhance Mid-IR Spectroscopy
Voltage-tunable output wavelength, broad gain spectra, high output power and efficiency, and innovative cavity geometries give quantum cascade laser-based sensor systems an edge in applications from gas analysis to chemical sensing. Most vapor...
Photonics Spectra, December 2011
Something OPSL, Something New
The latest optically pumped semiconductor lasers (OPSLs) enable full-color laser light shows with high electrical efficiency in large outdoor locations, even with challenging weather conditions – as proved at the wedding of Prince Albert of...
Photonics Spectra, October 2011
New Dimension Trends: Photonics Enters New Dimensions
Optics and photonics are everywhere. Not just in industrial settings or research environments or the medical arena. Everywhere. And with each new day, they are becoming more integral to how we live our lives – at home and at work, at the...
Photonics Spectra, January 2011
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