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Photonics Spectra
Since 1967, Photonics Spectra magazine has defined the science and industry of photonics, providing both technical and practical information for every aspect of the global industry and promoting an international dialogue among the engineers, scientists and end users who develop, commercialize and buy photonics products. Stay current with a FREE subscription to the digital or print edition.

Latest Issue
Mar 2018

An Answer to The Bandwidth Dilemma?

Mike WheelerArtificial intelligence. Data analytics. Machine Learning. IoT.

These megatrends are transforming how we live. And thanks to better fiber, smaller cables and more efficient transceivers, the industry has been able to keep pace with the increasing amount of data flowing through the global fiber optic infrastructure. But these improvements may not be enough.

We’re “now approaching fundamental limits in the information-carrying capacity of optical fiber,” according to OFS’ David DiGiovanni, who serves as guest commentator in this month’s special section. Breakthrough advances in optical hardware are needed, as are big improvements in integration. Everything, he says, “has to become smaller and cheaper and use less power.” See “Fiber Optics at the Core of Connectivity” of this month’s special section (read article).

In the interim, the emergence of ultralow-loss, large effective area fiber is helping address bandwidth challenges, as are more sophisticated encoding schemes capable of increasing the amount of data that can be transmitted. Read this month’s cover story, “Getting More Out of Telecom Fiber,” from Contributing Editor Hank Hogan (read article).

Web Editor Robin Riley explores the role of dark fiber in predicting earthquakes, the presence of groundwater and changes in permafrost in “Fiber Optic Cables Find Use as Seismic Sensors,” part of this month’s special section (read article).

Elsewhere in the magazine:

• There’s much ado about UAVs as a host for spectral imagers, thermal sensors and lidar. But integrating these technologies to work in tandem is a science unto itself. Don’t miss “Sensor Balancing Act for UAVs,” (read article).

• Aspheres are found in head-mounted displays and automobile cameras, and their increasing use in harsh environments requires tighter specifications and tolerances. That’s prompted metrology suppliers to devise evermore ingenious ways to measure them. Contributing Editor Marie Freebody’s “Innovations in Lens Measurement” (read article).

• One of the most dynamic areas in femtosecond lasers is ytterbium fiber amplifiers. New milestones in power and speed are translating to breakthroughs in multiphoton imaging in neuroscience and cutting OLEDs on glass substrates. “Ytterbium Fiber Amplifiers Set the Mark for Speed and Power” (read article).

• When it comes to determining crystallinity, molecular orientation, stress and strain, FTIR spectroscopy is a particularly useful tool. But the diffraction limit has inhibited assessing material properties on the nanoscale. A variation of the technique — nano-FTIR — overcomes this limitation. Read “Nano-FTIR Spectroscopy Reveals Material’s True Nature,” from Toptica and Neaspec (read article).

Enjoy the issue!
Mike Wheeler
An award-winning journalist with more than 20 years of experience, Managing Editor Michael D. Wheeler oversees editorial content for Photonics Spectra, EuroPhotonics, BioPhotonics and Industrial Photonics magazines.
Marcia Stamell
Associate Managing Editor Marcia Stamell is the editor of BioPhotonics and Industrial Photonics. She has worked for general interest newspapers, the business press and national magazines as a writer and editor.
Justine Murphy
Senior Editor Justine Murphy is an award-winning journalist with nearly 20 years of experience. She serves as editor of EuroPhotonics, host of Light Matters and producer of podcasts. She also leads development of magazine special sections and marketing projects.
Autum Pylant
News Editor Autum C. Pylant is an Air Force Veteran with 10+ years of award-winning broadcast journalism experience. She is responsible for the steady flow of news and new product announcements to web and print and is the producer of the Light Matters video newscast.
Robin Riley
Multimedia/Web Editor Robin Riley has 30+ years of experience in communications and marketing for a range of technical industries. She is a regular contributor to web content and social media, and organizes and produces custom and editorial webinars.
Karen Newman
Karen Newman, Publisher/Books & Courses for Photonics Media Press, has had a career in business-to-business and association publishing, much of it spent covering technical, scientific and life sciences subjects.
Hank Hogan
Contributing editor Hank Hogan holds a Bachelor of Science degree in physics from the University of Texas at Austin. Hogan worked in the semiconductor industry and now writes about science and technology.
Marie Freebody
Contributing editor Marie Freebody is a free-lance science and technology journalist with a master’s degree in physics and a concentration in nuclear astrophysics from the University of Surrey in England.
Valerie Coffey
Science writer Valerie C. Coffey holds a bachelor’s degree in physics and a master’s in astronomy. She has covered optics, photonics, physics and astronomy for a variety of industry and academic publications since 2000.
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