- The Brighter Side of Semiconductors
The vast majority of activity in the semiconductor industry revolves around silicon. However, the other semiconductors are not to be overlooked. “Compound semiconductors are like salt is to food,” said Professor Manijeh Razeghi, director of the Center for Quantum Devices at Northwestern University (Evanston, Ill.). Each play an important role, ......
- New laser could cut costs of fiber optics connections
Albuquerque, N.M.-A new 1.3-micron, electrically pumped vertical-cavity surface-- emitting laser (VCSEL) grown on gallium arsenide could potentially reduce the cost of high-speed fiber optics connections, said researchers at the U.S. Department of Energy's Sandia National Laboratories. Working through a cooperative research and development agreement with Cielo Communications Inc., Sandia developed ......
- Optical power measurements ensure quality bits
Fiber-optic (FO) power meters have become a workhorse for testing active and passive electro-optic components in engineering and in production. Active components include light sources such as laser diodes, pumps, and amplifiers. Passive components include splitters, combiners, connectors, reconfigurable optical add-drop multiplexers (ROADMs), and the fiber itself. You can also ......
- Waveguide lasers fit into fiber optics.
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Waveguide lasers will fill a niche as the optical source used in fiber optic technology, including communications, radio frequency photonics, and optical metrology, according to the National Institute of Standards and Technology's optoelectronics division. NIST is located in Gaithersburg, Md. The waveguide lasers are compact and emit low noise, have ......
- Vertical lasers could cut telecom network costs
The cost of high-speed fiber-optic connections could come down thanks to engineers at Sandia National Laboratory, Albuquerque, N.M. They have developed the first 1.3-(mu) electrically pumped, vertical cavity surface emitting laser (VCSEL) grown on gallium arsenide. This new laser will be simpler and less expensive to build than standard edge-emitting ......
- Optoelectronics
Electrons are fast, but photons are even faster, moving as they do at the speed of light. This speed, coupled with the huge amounts of data that can be carried by lightwaves — about an order of magnitude greater than electrical signals — make light desirable for lots of applications, ......
- Peleton releases multi-wavelength laser
Peleton has released a 96-channel laser source that generates light at 96 discrete wavelengths with channel spacing of 50 GHz. Wavelength range is 1527.60 nm to 1565.50 nm. Typical output power is 3.5 mW/channel. You can use the TM3050C to test optical subsystems such as amplifiers, optical channel monitors, and ......