Keyword: Fiber optics

Briefs: Sensors/Data Acquisition

Current laser interferometry pressure pulse detection techniques use the shock-induced change in index of refraction to track detonation and/or shock fronts in a single fiber optic by reflecting laser...

Briefs: Photonics/Optics
This approach removes the limitation on peak power densities that exists for fiber lasers.
Briefs: Electronics & Computers
This optical switch controls the direction of light passing through optical fibers faster and more efficiently.
Briefs: Photonics/Optics
This innovation dynamically provides fast signal processing and precision measurement.
Briefs: Communications

Engineers at the University of Illinois have found a way to redirect misfit light waves to reduce energy loss during optical data transmission. In a study,...

Facility Focus: Electronics & Computers

The Georgia Tech Research Institute (GTRI) is the nonprofit applied research division of the Georgia Institute of Technology (Georgia Tech) in Atlanta, GA. Founded in 1934 as the Engineering...

Application Briefs: Manufacturing & Prototyping
There is increasing demand in many high-end commercial and industrial markets for precision motion sensing for a diversity of applications.
Briefs: Photonics/Optics

Light is widely used for communications, carrying phone conversations and video signals through fiber optic cables around the world in pulses composed of many photons. Single...

Briefs: Electronics & Computers
All-Fiber, Optically Controlled Optical Switch

An optical switch is a device where information-bearing light may be directed to one of several outputs. Prior art optical switches have mainly been integrated optical waveguide structures such as titanium-diffused (Ti) waveguides in lithium-niobate (LiNbO3) or gallium-arsenide (GaAs)...

Articles: Sensors/Data Acquisition

Since their development in the 1950s, optical fibers have been used for power transmission, communication, imaging, and sensing. They are often used in situations where other sensing...

Articles: Photonics/Optics

The SPIE Photonics West 2019 technical conference and exhibition returns to The Moscone Center in San Francisco, February 2 through February 7, offering attendees the opportunity to explore the latest...

Briefs: Test & Measurement

NASA's Marshall Space Flight Center is offering opportunities for its new fiber optic mass flow sensor system. Capable of measuring multi-phase flows in a pipe, the technology is minimally invasive,...

Briefs: Sensors/Data Acquisition

Optical fibers have been traditionally produced by making a cylindrical object called a preform — essentially, a scaled-up model of the fiber — and then heating it. Softened...

Briefs: Sensors/Data Acquisition
Faster Photons Could Make Data Totally Secure

Transferring data using light passed along fiber optic cables has become increasingly common over the past decades, but each pulse currently contains millions of photons. That means that in principle, a portion of these could be intercepted without detection. Secure data is already encrypted, but if...

Briefs: Photonics/Optics
Antiferromagnetic-Based Memory Processes Data at Terahertz Speeds

Data travels down fiber-optic cables at frequencies of several terahertz. As soon as the data arrives on a PC or television, this speed must be throttled down to match the data processing speed of the device components; this speed currently is in the range of a few hundred...

Briefs: Communications

Researchers at NASA's Marshall Space Flight Center have devised a method for the creation of crystal-free non-oxide optical fiber preforms. Non-oxide fiber optics are extensively used in...

Articles: Sensors/Data Acquisition

The term “smart camera” has been used for decades, but there has been little agreement on the actual definition. This article will use the term “smart” as the Merriam Webster dictionary defines it:...

Briefs: Sensors/Data Acquisition

A team at the New York University Tandon School of Engineering has made a discovery that could lead to Star Trek-like biosensor devices capable of flagging the...

Facility Focus: Electronics & Computers

This year, Oak Ridge National Laboratory (ORNL) marks 75 years as a research institution. Located in Oak Ridge, TN, ORNL is the largest US Department of Energy science and energy laboratory, conducting basic and...

Articles: Photonics/Optics

Laser engineers are leveraging new materials, unusual gain mechanisms, and innovative cavity designs to push laser performance into new regimes. Pulse lengths are getting...

Briefs: Test & Measurement

When testing composite structures, it is important to understand the response of the structure to the load. Of significance is the formation of damage and growth of that damage leading...

Briefs: Data Acquisition

Researchers at NASA's Armstrong Flight Research Center (AFRC) have been developing a fiber optic sensing system (FOSS) that represents a major breakthrough in...

Briefs: Photonics/Optics
Secure Optical Quantum Communications

NASA’s Glenn Research Center has developed a method of using entangled-photon pairs to produce highly secure mobile communications that require mere milliwatts of power. Conventional gas Argon-ion laser sources are too large, expensive, and power-intensive to use in portable applications. By contrast,...

Briefs: Electronics & Computers

In London's St. Paul's Cathedral, a whisper can be heard far across the circular whispering gallery as the sound curves around the walls. Now, an optical whispering gallery mode resonator developed by...

Briefs: Automotive

A new approach to time-of-flight imaging that increases its depth resolution 1,000-fold has been presented by the MIT Camera Culture group. That type of resolution could make...

Briefs: Medical

A method was developed for concurrently measuring bending and twisting along an optical fiber using only the properties of light guided within the fiber. The method exploits polarization-dependent...

Briefs: Test & Measurement

Time of flight is an approach that gauges distance by measuring the time it takes light projected into a scene to bounce back to a sensor. In time-of-flight imaging, a short burst of light is fired...

Briefs: Sensors/Data Acquisition

A chemical sensor prototype was developed that can detect single-fingerprint quantities of substances from a distance of more than 100 feet away, and could be shrunk to the size of a shoebox. The portable...

Articles: Photonics/Optics

The SPIE Photonics West 2018 technical conference and exhibition returns to The Moscone Center in San Francisco, January 27 through February 1, offering attendees the opportunity to explore the latest...

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