Lasers ♦ news digest
IPG Photonics’ Gapontsev awarded for laser developments
Laser veteran Valentin Gapontsev has been honoured for his contributions to the field of lasers by the Russian government. His accolades include creating optical quantum generators on a fundamentally new technological platform. For his innovative designs and creation of high- quality fibre lasers, fibre optic backbone and local connection systems, Valentin Gapontsev has been awarded the 2010 Russian Federation National Award in Science and Technology.
Valentin Gapontsev was born on February 23, 1939 in Moscow. He holds a Ph.D. in Physical and Mathematical Sciences and has served as Department Chair at the Moscow Institute of Physics and Technology as well as the Worcester Polytechnic Institute (USA).
He is also the Director General of the IRE-Polus research and technology alliance, and the chair of the Board of Directors and Managing Director of the International research and technology corporation of IPG Photonics.
Gapontsev is a leading specialist in the field of laser physics and technology, fibre optic and opto- electronic technologies, and the founder of IPG Photonics research and production association, which develops and produces high-performance fibre lasers in Russia, Germany and the United States.
Gapontsev’s work, which started about twenty years ago in Russia at IRE Polus research and technology association, is based on his idea of creating optical quantum generators on a fundamentally new technological platform.
His merits include his socio-educational work at laser technology science and education centres, where he has trained young Russian scientists and specialists in the field of laser physics.
Dilas develops new high- efficiency 135W fibre-coupled laser
The 976nm laser has a specially tailored mini-bar architecture where the optical parameter of the emission fits into the 200 µm fibre with the most simple and inexpensive optics.
Dilas, a manufacturer of diode lasers, has developed a state- of-the art tailored mini-bar architecture for high brightness fibre-coupling which is capable of delivering 135 W output from a 200 µm (NA 0.22) fibre at 976nm.
The tailored mini-bar architecture is an innovative breakthrough by Dilas and is specifically designed to realise high brightness output while maximising fibre-coupling efficiency for an overall high efficiency product. The tailored mini-bar was developed so that the optical parameter of the emission fit into the 200 µm fibre with the most simple and inexpensive optics. This device is a monothical-multi single emitter source which takes advantage of handling multiple emitters during each individual manufacturing step to lower complexity and overall costs.
With scalable concepts further modules will soon be available, such as 976nm, 200W, 200µm and 976nm, 500W, 200µm.
These fibre-coupled, multi-bar modules are ideal for direct diode applications as well as for fibre and solid-state laser pumping.
July 2011
www.compoundsemiconductor.net 75
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