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Multi-gigahertz high-power femtosecond semiconductor disk lasers

13.11.2012 - Photonik international /2012

Optically pumped semiconductor disk lasers (VECSELs) combine the advantages of solid state lasers and conventional semiconductor lasers. Modelocked by a semiconductor sat...
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Asymmetric fused fibre coupler consisting of different single-mode glass fibres

13.11.2012 - Photonik international /2012

Fused fibre couplers either combine or separate optical signals of different wavelength in telecommunications, laser development, and biomedical optics. Here, we report o...
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This technical articel is also under the category: Fibre optics and Optical Communication

Optical parametric oscillators: a single-device femtosecond laser source for the ultraviolet to infrared region

17.11.2011 - Photonik international /2011

"After more than 50 years since the invention of the laser, nonlinear optics has provided a viable solution to the generation of coherent light in arbitrary spectral regi...
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Green III-V semiconductor lasers capture laser projection

17.11.2011 - Photonik international /2011

"It took some time before direct green diode laser light could be generated without complex frequency conversion. Due to technical barriers, lasers reached an emission wa...
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This technical articel is also under the category: Displays

Manufacturing of ultra-robust solid state lasers using high temperature curing processes

23.11.2010 - Photonik international /2010

Industrial expectations on the performance of lasers for today’s high-tech diagnostic instruments continue to grow stronger and stronger. Typically compact, continuous wa...
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This technical articel is also under the category: Manufacturing of Optics

High-brightness near- and mid-infrared diode lasers

23.11.2010 - Photonik international /2010

High-power diode laser quality was once described by only total output power and electro-optical efficiency. Today’s applications require better characterisation of diode...
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Generation of ultrashort laser pulses and frequency combs by carrier-envelope phase stabilisation

12.11.2009 - Photonik international 2/2009

Carrier-Envelope Phase (CEP) stabilization of Titanium:Sapphire lasers has enabled a new generation of laser applications such as synthesis of frequency combs for atomic ...
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Pumping high-power fiber lasers with multi-element laser diodes

12.11.2009 - Photonik international 2/2009

Spurred by recent advances in output power and beam quality, fiber lasers are gaining acceptance across a variety of applications, including micro-cutting, welding and ma...
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Fluorescence microscopy of living cells using new 515 nm DPSS lasers

12.03.2009 - Photonik international 1/2009

A novel diode-pumped solid-state (DPSS) laser emitting at 515 nm is closing an important gap in the area of compact all solid-state lasers. Especially biological applicat...
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This technical articel is also under the category: Biotechnology

Laser diodes with new wavelengths and monolithic grating stabilisation

12.03.2009 - Photonik international 1/2009

Due to their easy handling and the robust construction, high power semiconductor lasers are becoming more and more popular. In the past, the few wavelengths available and...
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This technical articel is also under the category: Biotechnology

Red VCSELs for high-speed data communication via POF

12.03.2009 - Photonik international 1/2009

For efficient data communication via polymer optical fiber (POF) the emission wavelength of vertical cavity surface emitting semiconductor lasers (VCSELs) has to be adjus...
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This technical articel is also under the category: Fibre optics and Optical Communication

Simulation of quantum cascade lasers – optimizing laser performance

14.11.2008 - Photonik international 2/2008

The commercialization of quantum cascade lasers (QCLs) has just begun. Their emission wavelengths depend on the specific cascade layer sequence the lasers consist of. Sim...
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This technical articel is also under the category: Software for Optics

Femtosecond fibre laser for material processing

14.11.2008 - Photonik international 2/2008

The ultrashort pulses from femtosecond lasers allow precise material processing and thus show great potential in the field of micro- and nano-processing. In the past, how...
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This technical articel is also under the category: Laser Technology

40 Gbit/s directly modulated lasers become reality

12.03.2008 - Photonik international 1/2008

Optical Telecommunication requires semiconductor injection lasers with emission wavelengths around 1.3 µm and 1.55 µm. Here, good semiconductor lasers can be directly mod...
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This technical articel is also under the category: Fibre optics and Optical Communication

Pulse Shaping with the MIIPS-Process

12.03.2008 - Photonik international 1/2008

The full potential offered by ultra-short laser pulses can only be effectively used when the pulses can be manipulated. This is achieved by analysing them and optimising ...
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This technical articel is also under the category: Laser Technology

Optical physics with single atoms and photons

12.03.2008 - Photonik international 1/2008

In recent years, remarkable advances in laser-based techniques for cooling, confining, and coherently manipulating atoms have provided a rich set of tools for the investi...
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This technical articel is also under the category: Laser Technology

Solid state lasers for ultrashort pulses – a diverse family

15.03.2007 - Photonik international /2007

Mode-locked solid state lasers of various kinds can generate light pulses with durations in the picosecond or femtosecond region, pulse energies from picojoules to severa...
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Lowering operating costs, increasing lifetimes: long-term excimer laser test

15.03.2007 - Photonik international /2007

If a number of different technologies are available for a specific application, the decision for one in particular is often made on the basis of operating costs. The inhe...
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Diode laser illumination for the visualisation of motion and flow processes

15.03.2007 - Photonik international /2007

Visualisation of small and fast moving objects sets strict illumination requirements which often can not be fulfilled with conventional light sources. In contrast to this...
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This technical articel is also under the category: Image Capturing and Processing

The dye laser disk: CW lasing from a polymer

15.03.2007 - Photonik international /2007

The development over recent years and decades in the field of organic lasers was aimed at the integration of the advantages of dye lasers into compact laser systems and i...
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