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In 2022, II-VI acquired laser manufacturer Coherent, Inc.. [14] and took the name Coherent Corp. Carl Johnson served as II-VI's first CEO from 1985 to 2007. He stepped down as CEO in 2007 and was named chairman of the board, a position he held until 2014. [15] Johnson was succeeded as CEO by Francis Kramer, who had been president since 1985. [13]
Coherent was founded in May 1966 by physicist James Hobart and five cofounders. It went public in 1970. Over time, Coherent acquired other laser businesses and expanded to lasers for different industries and applications. From 2004 to 2021, it grew from $400 million to almost $2 billion in revenues, in part through a series of acquisitions.
The US based company ROFIN-SINAR Technologies Inc. develops, manufactures and sells laser sources and laser-based solutions for industrial material processing. On 7 November 2016, the company was acquired by Coherent Inc. [1] [2] From 1996 to November 2016, ROFIN-SINAR Technologies’ shares have been traded on the NASDAQ Stock Exchange.
PITTSBURGH, Oct. 21, 2024 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: COHR), a global leader in industrial laser technology, announced the launch of the EDGE FL TM high-power fiber laser series, tailored for cutting applications in the machine tool industry. Available with power levels from 1.5 kW to 20 kW, the EDGE FL series redefines the ...
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]
Laser types with distinct laser lines are shown above the wavelength bar, while below are shown lasers that can emit in a wavelength range. The height of the lines and bars gives an indication of the maximal power/pulse energy commercially available, while the color codifies the type of laser material (see the figure description for details).
The number of photons of this coherent laser beam increases and competes the number of photons perished due to losses. The basic necessary condition for the generation of a laser radiation is the population inversion, which can be achieved either by exciting atoms and inducing percussion or by external radiation absorption. A SASER device ...
No real laser is truly monochromatic; all lasers can emit light over some range of frequencies, known as the linewidth of the laser transition. In most lasers, this linewidth is quite narrow (for example, the 1,064 nm wavelength transition of a Nd:YAG laser has a linewidth of approximately 120 GHz, or 0.45 nm [5]).
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