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Coherent purchased the German-based pulse laser company Lumera in 2012 for $52 million. [10] Their lasers were primarily used in micromachining in industrial processes that use lasers to add very slight amounts of heat. [10] In 2015, Coherent purchased Raydiance, who made lasers used in automotive and medical manufacturing, for $9.3 million.
Coherent Corp. (formerly II-VI Incorporated) is an American manufacturer of optical materials and semiconductors. As of 2023, the company had 26,622 employees. Their stock is listed at the New York Stock Exchange under the ticker symbol COHR. In 2022, II-VI acquired laser manufacturer Coherent, Inc., and adopted its name. [3] [4]
Coherent addition (or coherent combining) of lasers is a method of power scaling. It allows increasing the output power and brightness of single-transversal mode laser. Usually, the term coherent addition applies to fiber lasers. As the ability of pumping and/or cooling of a single laser is saturated, several similar lasers can be forced to ...
In materials science, Direct Laser Interference Patterning (DLIP) is a laser-based technology that uses the physical principle of interference of high-intensity, coherent laser pulses to produce functional periodic microstructures. [1] [2] To achieve interference, the beam is divided by a beam splitter, specialized prisms, [3] or other elements.
Tunable lasers are sometimes used in combination with coherent modulation to allow a module to support various forms of network-based optical switching such as needed in certain cases by an optical mesh networks or a Reconfigurable optical add-drop multiplexer (ROADM). In these, the transmit laser can be tuned to a different optical frequency ...
Calibration Factor-- the factor to convert real-time to pulse delay time when viewing the output of the autocorrelator.One example of this would be 30 ps/ms in the Coherent Model FR-103 scanning autocorrelator, which suggests that a 30 ps pulse autocorrelation width would produce a 1 ms FWHM trace when viewed on an oscilloscope.
A coherent perfect absorber (CPA), or anti-laser, is a device which absorbs coherent waves, such as coherent light waves, and converts them into some form of internal energy, e.g. heat or electrical energy. [1] [2] It is the time-reversed counterpart of a laser. [3]
Photon detections as a function of time for a) antibunching (e.g. light emitted from a single atom), b) random (e.g. a coherent state, laser beam), and c) bunching (chaotic light). τ c is the coherence time (the time scale of photon or intensity fluctuations).