Details
Originalsprache | Englisch |
---|---|
Titel des Sammelwerks | Novel In-Plane Semiconductor Lasers |
Untertitel | 21 - 23 January 2002, San Jose, USA |
Erscheinungsort | Bellingham |
Herausgeber (Verlag) | SPIE |
Seiten | 256-263 |
Seitenumfang | 8 |
Auflage | 1 |
ISBN (Print) | 0-8194-4390-5 |
Publikationsstatus | Veröffentlicht - 22 Mai 2002 |
Extern publiziert | Ja |
Publikationsreihe
Name | Proceedings of SPIE - The International Society for Optical Engineering |
---|---|
Herausgeber (Verlag) | SPIE |
Band | 4651 |
ISSN (Print) | 0277-786X |
Abstract
Beam quality and output power of mostly 2-dimensional stacked diode laser systems are insufficient for the demands of materials processing. To increase the output power at almost constant beam-quality, superimposition of diode laser bars of different wavelengths as well as polarization-multiplexing of s- and p-polarized laser beams is possible. Different techniques for wavelength-multiplexing have been developed. The so-called multi-filter concept of a spanned coated etalon with edge-filters has turned out best. The concept features a modular design, simple adjustment and easy add-on of more wavelengths. Concerning the polarization-multiplexing we take advantage of the almost linear polarized diode laser bars. Ordinary used beam splitter cubes with a cemented structure are less qualified for high radiance. Hence the beam combination is achieved with beam displacers made of a birefringent crystal (YVO4) which provide high transmittance and convenient adaptation. Finally an experimental set-up with 8 diode laser bars of 4 different wavelengths, i.e. 8-times beam superimposition, is realized. The set-up called multiplexer obtains a radiance of about 4 × 106 W cm-2 sr-1 and outnumbers all other comparable high power diode laser systems.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Informatik (insg.)
- Angewandte Informatik
- Mathematik (insg.)
- Angewandte Mathematik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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Novel In-Plane Semiconductor Lasers: 21 - 23 January 2002, San Jose, USA. 1. Aufl. Bellingham: SPIE, 2002. S. 256-263 (Proceedings of SPIE - The International Society for Optical Engineering; Band 4651).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Diode laser modules of highest brilliance for materials processing
AU - Knitsch, Alexander
AU - Luft, Axel
AU - Groß, Tobias
AU - Ristau, Detlev
AU - Loosen, Peter
AU - Poprawe, Reinhart
PY - 2002/5/22
Y1 - 2002/5/22
N2 - Beam quality and output power of mostly 2-dimensional stacked diode laser systems are insufficient for the demands of materials processing. To increase the output power at almost constant beam-quality, superimposition of diode laser bars of different wavelengths as well as polarization-multiplexing of s- and p-polarized laser beams is possible. Different techniques for wavelength-multiplexing have been developed. The so-called multi-filter concept of a spanned coated etalon with edge-filters has turned out best. The concept features a modular design, simple adjustment and easy add-on of more wavelengths. Concerning the polarization-multiplexing we take advantage of the almost linear polarized diode laser bars. Ordinary used beam splitter cubes with a cemented structure are less qualified for high radiance. Hence the beam combination is achieved with beam displacers made of a birefringent crystal (YVO4) which provide high transmittance and convenient adaptation. Finally an experimental set-up with 8 diode laser bars of 4 different wavelengths, i.e. 8-times beam superimposition, is realized. The set-up called multiplexer obtains a radiance of about 4 × 106 W cm-2 sr-1 and outnumbers all other comparable high power diode laser systems.
AB - Beam quality and output power of mostly 2-dimensional stacked diode laser systems are insufficient for the demands of materials processing. To increase the output power at almost constant beam-quality, superimposition of diode laser bars of different wavelengths as well as polarization-multiplexing of s- and p-polarized laser beams is possible. Different techniques for wavelength-multiplexing have been developed. The so-called multi-filter concept of a spanned coated etalon with edge-filters has turned out best. The concept features a modular design, simple adjustment and easy add-on of more wavelengths. Concerning the polarization-multiplexing we take advantage of the almost linear polarized diode laser bars. Ordinary used beam splitter cubes with a cemented structure are less qualified for high radiance. Hence the beam combination is achieved with beam displacers made of a birefringent crystal (YVO4) which provide high transmittance and convenient adaptation. Finally an experimental set-up with 8 diode laser bars of 4 different wavelengths, i.e. 8-times beam superimposition, is realized. The set-up called multiplexer obtains a radiance of about 4 × 106 W cm-2 sr-1 and outnumbers all other comparable high power diode laser systems.
KW - Beam displacer
KW - Birefringent crystal
KW - High power diode laser
KW - Multi-filter
KW - Multiplexer
KW - Polarization-multiplexing
KW - Wavelength-multiplexing
UR - http://www.scopus.com/inward/record.url?scp=0036059258&partnerID=8YFLogxK
U2 - 10.1117/12.467954
DO - 10.1117/12.467954
M3 - Conference contribution
AN - SCOPUS:0036059258
SN - 0-8194-4390-5
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 256
EP - 263
BT - Novel In-Plane Semiconductor Lasers
PB - SPIE
CY - Bellingham
ER -