Lasers ♦ news digest
growing demand for laser pumps in the field of eye-safe, Thulium-doped fibre laser systems. The pump module is used in defence and aerospace applications, such as LIDAR and direct infrared countermeasures, and to replace existing diode pumped solid-state (DPSS) technology in medical and industrial applications.
The Series 8000 793nm standard Mini-Fibre Packages (MFP) provide a robust and cost effective solution for applications with power requirements in the 4 to 5W range. The same high power chip technology used in Intense’s 793nm MFP’s is now available in new multi-emitter packages designed to yield a maximum optical pump power of up to 20W. The building block 4 to 5W laser diodes can also be supplied in free space configuration on C-mount with a FAC-lens, or on isolation sub-mounts.
“Over the years, we have continuously improved our industry leading 793nm laser diode technology,” stated Berthold Schmidt, CEO, Intense Ltd. “The multi-emitter modules with the next generation of 793nm chips are an important extension of the 793nm MFP product line that incorporates a single laser diode and yield of about 4.5W fibre coupled output power.”
The Series 8000 793nm Pump Laser Diode Module is based on Intense’s next generation 793nm single emitter chips, which incorporate improved asymmetric waveguide design with narrow beam divergence and Intense’s patented Quantum Well Intermixing (QWI) technology to maximise power and reliability.
The entire Hermes product line will be on display at Laser World of Photonics, including the QCW bars the provide up to 400W of output power, and the QCW 1kW, 2kW, and 3KW stacks with 1kW, 2kW, and 3kW of output power, respectively.
All Hermes bars and stacked arrays incorporate Intense’s patented QWI technology. This increases the brightness and reliability of the lasers while dramatically reducing instances of catastrophic optical damage (COMD). These bars and stacks are assembled using AuSn hard solder and designed for a wide range of aerospace, defence and industrial applications.
The Series 8000 793nm Pump Laser Diode Module prototypes are available on a limited basis to key
OEM partners in preparation for a full product launch in 2012.
Berlin to host compound semiconductor conference
Organised by the Fraunhofer Institute and the VDE Association for Electrical Technologies, Electronic & Information Technologies, the conference will address the future of compound semiconductors in micro electronics and optoelectronics.
On May 23, 2011, Andre Geim, the 2010 winner of the Nobel Prize in Physics, opened the 2011 Compound Semiconductor Week with a plenary lecture on graphene.
Here, some 450 scientists and industry representatives will discuss current research findings in the field of compound semiconductors. An example of one of the key topics of the event is how to improve energy efficiency while increasing data rates in communications systems – often referred to as “Green IT”.
The conference took place in Berlin from May 22 to 26. The conference is organised by the Fraunhofer Heinrich Hertz Institute HHI, the Fraunhofer Institute for Applied Solid State Physics IAF, and the VDE Association for Electrical Technologies, Electronic & Information Technologies.
“CSW is the most important international conference for the entire spectrum of compound semiconductors. Here, participants will get an overview of what will become possible in micro electronics and optoelectronics,” Oliver Ambacher, ISCS 2011 Conference Chair and head of the Fraunhofer IAF, said.
While silicon is still the most important semiconductor material, today no mobile phone, PC or car would work without additional components used in compound semiconductor technology. Compound semiconductor, in contrast to the elemental semiconductor – like silicon -, consists of at least two different types of atoms.
Compound semiconductors are used for light generation with LEDs, photonics and communications engineering, as well as for
June 2011
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