Parallele Modulatorarrays zur Erzeugung intensitätsmodulierter Bildzeilen

A parallel modulator array realized by means of integrated optics can serve as a basic element for an image processor based on laser-beam sources or scanning applications in materials processing. It consists of a number of integrated optical waveguides. These waveguides are arrange in one plane at constant pitch. With suitable beam forming microoptical elements, laser radiation is coupled into each waveguide. Since the waveguides are worked out as modulators, the intensity, which is outcoupled can be varied electronically. Therefore, a line can be generated using micro-optical devices. This line shows a varying intensity for all of the points, of which it consists, due to the particular modulation of each waveguide. Such an intensity modulated line can be used as key component for future laser display applications, since it allows to build laserdisplays, which overcome the problem of large horizontal deflection frequencies. It is further extraordinarily small compared to mechanical scanning systems and can be used in combination with other photonical elements such as diode lasers. The modulator array layout process as well as the manufacturing process in Ti-diffusion Lithiumniobate-technology and it's position relative to the existing state of the art is presented in detail. Furthermore, the parallel modulator array, the laser-beam source and the optical system for parallel coupling of laser radiation to the array is developed. The complete system includes the modulator array itself, the electrical driving components, a beam source and optical components. Detailed tests have been performed on the components and the complete systems, which are documented herein. The functionality of the concept was verified, several influences on the performance could be isolated and an evaluation was performed.

Grantor dc:publisher

Publikationsserver der RWTH Aachen University

Year dc:date

2001

Author dc:creator

• Falter, Stephan

Contributors dc:contributor

• Poprawe, Reinhart

• info:eu-repo/classification/ddc/620
• Ingenieurwissenschaften
• Monomodewellenleiter
• Phasenmodulation
• Lithiumniobat
• Photolithographie
• Sensor-Array
• Zeilensensor

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

ger

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-118938%22

OAI record oai:identifier

https://publications.rwth-aachen.de/oai2d?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Apublications.rwth-aachen.de%3A56856