Skip to main content

Low-cost laser powermeter with ultra-fast response for continuous beam monitoring

Objective

Over the years, lasers have become common tools for various fields of industry and medicine, as well as for basic and applied research. For many applications, it is necessary to precisely determine the output power of the laser in order to achieve optimum results. However, no commercial power meter exists, which allows laser power to be monitored "on-line" without the need for additional diffractive optical systems, designed for such applications.

Moreover, traditional power meters make use of thermoelectric or pyroelectric sensors, which are expensive (especially when used to measure high power lasers), and suffer from long response times. The proposed power meter prototype is based on the scattering of light by nanoparticles, either deposited, or embedded, in a transparent substrate. Most of the incident laser light is transmitted by the nanoparticle-containing substrate, but a small fraction of the laser light is scattered by the nanoparticles.

The intensity of the scattered light and its angle-dependent distribution can be measured to determine the power of the transmitted laser radiation. The development of a low-cost system, which may be integrated in laser systems, will allow for a better control of processes, resulting in improvements in process quality and safety. An initial technical feasibility check of the proposed technology has been carried out by the University of Barcelona, with such promising results that all partners have envisaged a huge exploitation potential.

Call for proposal

FP6-2002-SME-1
See other projects for this call

Funding Scheme

Cooperative - SMEs-Co-operative research contracts

Coordinator

CENTRE DE RECERCA I INVESTIGACIÓ DE CATALUNYA S.A.
Address
Margallo 12 Edif.
Barcelona
Spain

Participants (11)

LASER COMPONENTS GESELLSCHAFT FÜR DEN VERTRIEB UND DIE FERTIGUNG VON LASERN UND OPTOELEKTRONISCHEN KOMPONENTEN MBH
Germany
Address
Landkreis Fürsetenfeidbruck
11 29 Olching
LASERPOINT SRL
Italy
Address
Via Burona, 51
Vimodrone (Milan)
TEMSA - DIAMOND DIE DIVISION
Spain
Address
Àngels, 2
Cervelló (Barcelona)
JESUS CARCELLE SUAREZ
Spain
Address
Paseo Constitucion, 10
Sant Feliu De Liobregat (Barcelona)
CERAMOPTEC GMBH
Germany
Address
Siemenstrasse 44
Bonn
SPECTRUM TECHNOLOGIES, PLC.
United Kingdom
Address
Western Avenue
Bridgend
JCB ELECTROMECANICA, S.L.
Spain
Address
Colomers, 3, Baixos
Palafrugell (Girona)
UNIVERSITAT DE BARCELONA
Spain
Address
Gran Via Corts Catalanes, 585 (Vicerectorat De Recerca )
Barcelona
FELTALÁLÓI ÉS KUTATÓ KÖZPONT SZOLGÁLTATÓ KFT.
Hungary
Address
Szalonka Köz 28
Budapest
BAY ZOLTÁN FOUNDATION FOR APPLIED RESEARCH
Hungary
Address
Fehérvári Út 130
Budapest
VÁRADI & TÁRSA LTD
Hungary
Address
Béke Tér 8
Dunaföldvár