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Top "Technology Channel" News Story:
Femtosecond Lasers
by Nicole and Justin Richards

Laser Optics and Femtosecond fiber lasers or femto and pico-second lasers offer exceptional performance for a variety of applications from nonlinear laser optics to quantum communications. The low-cost femtosecond laser version at 1560 nm offers greater than 1 mW of output power with less than 250-fs pulse durations. If you need shorter pulses and higher powers, choose the high-power version at 1560 nm with 100-fs pulse durations and greater than 40 mW of output power. Available options include: additional output at 780 nm femtosecond laser with >15-mW output power, supercontinuum generation from 1200-1800 nm, and "-CONTROL" with the ability to stabilize the laser cavities� temperature, repetition rate (fREP) and carrier envelope offset (fCEO) frequencies.

A femtosecond is one billionth of one millionth of a second. For context, a femtosecond is to a second, what a second is to about 32 million years.

Photonics is an outgrowth of the first practical semiconductor light emitters invented in the early 1960s at General Electric, MIT Lincoln Laboratory, IBM, and RCA and made practical by Zhores Alferov and Dmitri Z. Garbuzov and collaborators working at the Ioffe Physico-Technical Institute and almost simultaneously by Izuo Hayashi and Mort Panish working at Bell Telephone Laboratories. Photonics most typically operates at frequencies on the order of hundreds of terahertz.

Economically important applications for semiconductor photonic devices include optical data recording, fiber optic telecommunications, laser optics, laser printing (based on xerography), femtosecond lasers, displays, and optical pumping of high-power lasers.

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