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Photonics Spectra
Sep 2005
Sacher Lasertechnik GmbHRequest Info
The TEC-320 Tiger series external-cavity diode lasers in Littman/Metcalf configuration, introduced by Sacher Lasertechnik Group, comprise collimating optics, a diffraction grating and a tuning prism. They produce more than 500 mW at 760, 785, 830 and 980 nm, and more than 1000 mW at 780 and 1060 nm. The lasers feature a linewidth on the order of 500 kHz, a mode-hop-free tuning range of up to 15 GHz, AR coating, side mode suppression of 55 dB, typical, and drift of 300 MHz, typical, over 24 h. All functions can be controlled via a GPIB, USB or RS-232 interface.


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diffraction grating
A glass substrate carrying a layer of deposited aluminum that has been pressure-ruled with a large number of fine equidistant grooves, using a diamond edge as a tool. Light falling on such a grating is dispersed into a series of spectra on both sides of the incident beam, the angular dispersion being inversely proportional to the line spacing. By proper shaping of the diamond edge, however, the grooves can be formed in such a way as to concentrate most of the energy into a single spectral...
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