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Semiconductor-based narrow-line and high-brilliance 193-nm laser system for industrial applications

Publications associées (42)

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Photosensitivity and bragg grating technology for upconversion all-fiber lasers

Marcel Zeller

Fiber lasers are compact lightsources with high intrinsic beam quality and high efficiency. The lasing spectrum ranges from the blue to the near infrared and is achievable using fibers with different dopants and glass compositions. All-fiber lasers are cha ...

EPFL2004

Application of antimonide diode lasers in photoacoustic spectroscopy

Luc Thévenaz, Mario Mattiello

First investigations of photoacoustic (PA) spectroscopy (PAS) of methane using an antimonide semiconductor laser are reported. The laser fabrication is made in two steps. The structure is firstly grown by molecular beam epitaxy, then a metallic distributed ...

Elsevier2004

Highly efficient one- and two-cascade Raman lasers based on phosphosilicate fibers

René Salathé, Hans Georg Limberger, Florian Dürr, Marcel Zeller

Characteristics of one-cascade (1.06 double right arrow 1.24 mum) and two-cascade (1.06 double right arrow 1.24 double right arrow 1.48 mum) phosphorus-doped fiber Raman lasers are studied. The cavities of both lasers are formed by Bragg gratings written d ...

2003

Brillouin fiber laser pumped by a DFB laser diode

Luc Thévenaz

In this paper, we present a novel Brillouin fiber-ring laser utilizing an unbalanced Mach-Zehnder interferometer (UMZI) as coupling device. The laser is pumped by a distributed-feedback laser diode and shows continuous-wave and single-frequency operation. ...

2003

Epitaxial growth and optical characterization of BaSO4:Mn6+ layers for novel coherent light sources

Because of the strong electron-phonon coupling of the emitting 3d orbital in transition-metal (TM) ions, 3d systems exhibit luminescence with typically several hundred nm of spectral bandwidth. TM-ion-doped materials are, therefore, of high interest for ap ...

EPFL2003

Cristal composite SLAB pompé latéralement par diodes laser

This work presents the development of an original concept of a side pumped diode pumped crystal laser for the generation of a high power near diffraction limited beam for material processing applications such as cutting, marking and drilling. An approach b ...

EPFL2003

Optical speedup at transparency of the gain recovery in semiconductor optical amplifiers

Benoît Marie Joseph Deveaud, Marc-André Dupertuis

Experimental demonstration of optical speedup at transparency (OSAT) has been performed on a 1 mm long semiconductor optical amplifiers (SOA). OSAT is a recently proposed scheme that decreases the recovery time of an SOA while maintaining the available gai ...

2002

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

Holographic random access memory

Demetri Psaltis, Wei Liu

We examine the primary challenges for building a practical and competitive holographic random access memory (HRAM) system, specifically for size, speed, and cost. We show that a fast HRAM system can be implemented with a compact architecture by incorporati ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2000

Holographic random access memory (HRAM)

Demetri Psaltis, Wei Liu

WE examine the present state of holographic random access memory (HRAM) systems and address the primary challenges that face this technology, specifically size, speed, and cost. We show that a fast HRAM system can be implemented with a compact architecture ...

1999