To use all functions of this page, please activate cookies in your browser.
my.chemeurope.com
With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.
- My watch list
- My saved searches
- My saved topics
- My newsletter
Coherent additionCoherent addition (or coherent combining) of lasers is a way to increase the output power and brightness of single-transversal mode laser. Usually, it 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 oscillate in phase with common coupler. The coherent addition was considered as a way of power scaling of Raman lasers.[1] Additional recommended knowledge
Limits of coherent additionThe addition of lasers reduces the number of longitudinal modes in the output beam; the more lasers are combined, the smaller is number of longitudinal modes in the output. The number of output modes reduces exponentially with number of lasers combined. Of order of 8 lasers can be combined in such a way.[2] The future increase of number of combined lasers requires the exponential growth of the spectral bandwidth of gain and/or length of partial lasers. The combinaiton of more than 10 lasers in such a way should be difficult if at all. References
|
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Coherent_addition". A list of authors is available in Wikipedia. |