Publication

Highly efficient optically pumped NH3 laser with near diffraction limited output

Related publications (186)

Light-current characterization of dual-wavelength VCSELs

The purpose of this paper is to present a detailed characterization of a dual-wavelength VCSEL - the BiVCSEL. This device consists of two active optical cavities, which share a coupling mirror and can be independently electrically pumped. We present the ou ...

SPIE2002

Compact multisensor laser scanning head for processing and monitoring microspot welding

René Salathé, Thomas Sidler, Moustapha Hafez

In order to improve the reliability of micro-spot welding of metal parts in production such as e.g. in electron guns for TV picture tubes, real-time information about the evolution of the welding process should be available to allow on-line modification of ...

SPIE-Int. Soc. Opt. Eng2000

A compact, multi-sensor laser scanning head for processing and monitoring micro-spot welding

René Salathé, Thomas Sidler

2000

Compact fast-steering tip/tilt laser scanner for high power material processing applications

Moustapha Hafez

The common configuration for deflecting laser beams in two dimensions is based on two single-axis galvanometric scanners placed perpendicular to each other. Over recent years, these fast scanners have proved to be both very reliable and very accurate. They ...

EPFL2000

High power second harmonic generation with free running Nd : YAG slab laser for micro-machining applications

René Salathé, Thomas Sidler, Sébastian Favre

Frequency doubled Nd:YAG lasers represent an attractive alternative to other laser tools for many material processing applications, but frequency doubling with pulsed Nd:YAG lasers has been performed until now only with pulses of tens of nanoseconds. In ma ...

2000

Corneal morphology in vitro after superficial keractomy with Q-switched Er: YSSG and free-tunning ER: YAG lasers

Theo Lasser

PURPOSE: Examination of morphology in corneal ablation induced by a q-switched Er:YSGG (2.79 mu m) laser and a free-running Er:YAG laser (2.94 mu m). ...

2000

Diode-pumped broadband vertical-external-cavity surface-emitting semiconductor lasers. Design and applications

Romuald Houdré, Daniele Romanini

Summary form only given. We report the demonstration of high output power (>1 W), single frequency and ultra-short pulse operation (

2000

Continuous-wave dual-wavelength lasing in a two-section vertical-cavity laser

Jean-François Carlin, Marc Ilegems

A vertical-cavity surface-emitting laser with two monolithically grown cavities is presented, The three-terminal device allows current injection into the active regions of both cavities, Under various injection conditions, the device lases continuous wave ...

2000

Diode-pumped solid body laser used in ophthalmology comprises an acoustic-optical modulator, a laser crystal, a delay plate and a crystal that doubles the frequency of the laser beam

Theo Lasser

Diode-pumped solid body laser comprises an acoustic-optical modulator, a laser crystal, a delay plate and a crystal that doubles the frequency of the laser beam. Pulse lengthening is carried out by internal coupling of a doubler mechanism within the laser ...

2000

The dual wavelength Bi-vertical cavity surface-emitting laser

Jean-François Carlin, Marc Ilegems, Ursula Oesterle

We present a monolithically integrated vertical coupled cavity surface-emitting laser diode which exhibits stable laser emission at two design wavelengths simultaneously. The device consists of two slightly asymmetric coupled vertical cavities containing s ...

1999

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