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Coherent, Inc., headquartered in Santa Clara, California is an American company that develops, manufactures and supports laser equipment and related specialty components. Coherent was founded in May 1966 by physicist James Hobart and five cofounders.
The Mark Williams Company was a small software company in Chicago, Illinois (later moved to Northbrook) that created Coherent, one of the first Unix-like operating systems for IBM PCs and several C programming language compilers. It was founded by Robert Swartz (father of Aaron Swartz) in 1977 [1] and discontinued operations in 1995. The name ...
The coherent generation of the frequency comb from a continuous wave laser with the optical nonlinearity as a gain sets Kerr frequency combs apart from today's most common optical frequency combs. These frequency combs are generated by mode-locked lasers where the dominating gain stems from a conventional laser gain medium, which is pumped ...
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 system startup and login prompt Viewing the root directory and system information. Coherent is a clone of the Unix operating system for IBM PC compatibles and other microcomputers, developed and sold by the now-defunct Mark Williams Company (MWC). Historically, the operating system was a proprietary product, but it became open source ...
The technical details of coherent optical modules were proprietary for many years, but have recently attracted efforts by multi-source agreement (MSA) groups and a standards development organizations such as the Optical Internetworking Forum. Coherent optical modules can either plug into a front panel socket or an on-board socket.
For example, in a laser scattering measurement, the laser beam is split into two parts. One is the local oscillator and the other is sent to the system to be probed. The scattered light is then mixed with the local oscillator on the detector. This arrangement has the advantage of being insensitive to fluctuations in the frequency of the laser.
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