VICTOR, N.Y., Feb. 28, 2013 — Toptica Photonics Inc.’s TopMode diode lasers provide high-coherence mode-hop-free operation. At blue-violet wavelengths, they achieve high single-frequency output power while operating as easily as a HeNe laser. They feature a spectral width of <5 MHz and a coherence length >25 m.
Proprietary CHARM (CoHerence-Advanced Regulation Method) technology actively stabilizes the lasers’ coherence and ensures continuous single-frequency operation. CHARM eliminates mode hops and prevents sudden step changes of the laser power or frequency, resulting in stability and enabling accurate measurements in tasks such as interferometry, holography, scatterometry, Raman spectroscopy, precision metrology, quantum cryptography and photonic down-conversion.
The 405-nm TopMode offers as much as 100-mW output power. Other available wavelengths are 445, 488, 515, 633 and 685 nm. Users can choose between a free-beam output and optional fiber coupling, via the proprietary and patented SmartDock coupler.
The TopMode CHARM digitally controlled electronics drives the lasers. The compact flat-pack design features a microprocessor for precise electric and thermal management and the CHARM stabilization. A professional graphical user interface enables starting and stopping the laser, and activation of the CHARM feedback loop, with just a mouse click.
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