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A novel diode laser system for photodynamic therapy

Samsöe Andersen, Eva LU ; Petersen, PM ; Andersen, PE ; Andersson-Engels, Stefan LU and Svanberg, Katarina LU (2001) Conference on Laser-Tissue Interactions, Therapeutic Applications, and Photodynamic Therapy, 2001 4433(33). p.134-139
Abstract
In this paper a novel diode laser system for photodynamic therapy is demonstrated. The system is based on linear spatial filtering and optical phase conjugate feedback from a photorefractive BaTiO3 crystal. The spatial coherence properties of the diode laser are significantly improved. The system provides an almost diffraction limited output which is efficiently coupled into a 50 mum core diameter fiber. The optical power transmitted through the fiber is increased by a factor of six when the feedback is applied to the diode laser. 85 percent of the power from the freely running laser diode is extracted in a high-quality beam and 80 percent of the output power is extracted through the fiber. The power transmitted through tile fiber scales... (More)
In this paper a novel diode laser system for photodynamic therapy is demonstrated. The system is based on linear spatial filtering and optical phase conjugate feedback from a photorefractive BaTiO3 crystal. The spatial coherence properties of the diode laser are significantly improved. The system provides an almost diffraction limited output which is efficiently coupled into a 50 mum core diameter fiber. The optical power transmitted through the fiber is increased by a factor of six when the feedback is applied to the diode laser. 85 percent of the power from the freely running laser diode is extracted in a high-quality beam and 80 percent of the output power is extracted through the fiber. The power transmitted through tile fiber scales linearly with the power of the laser diode. which means that a laser diode emitting 1.7 W multi-mode radiation would provide 1 W of optical power through a 50 mum core diameter fiber. The system is compact, portable, stable, and easy to operate. (Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
LASER-TISSUE INTERACTIONS, THERAPEUTIC APPLICATIONS, AND PHOTODYNAMIC THERAPY
editor
Birngruber, R and van den Bergh, H
volume
4433
issue
33
pages
134 - 139
publisher
SPIE
conference name
Conference on Laser-Tissue Interactions, Therapeutic Applications, and Photodynamic Therapy, 2001
conference location
Munich, Germany
conference dates
2001-06-18 - 2001-06-21
external identifiers
  • scopus:0345683851
ISSN
0277-786X
1996-756X
ISBN
0-8194-4147-3
DOI
10.1117/12.446515
language
English
LU publication?
yes
id
7692d56d-8ba4-4a43-b812-734fc2c3f482 (old id 2260869)
date added to LUP
2016-04-01 11:42:13
date last changed
2025-01-14 15:17:22
@inproceedings{7692d56d-8ba4-4a43-b812-734fc2c3f482,
  abstract     = {{In this paper a novel diode laser system for photodynamic therapy is demonstrated. The system is based on linear spatial filtering and optical phase conjugate feedback from a photorefractive BaTiO3 crystal. The spatial coherence properties of the diode laser are significantly improved. The system provides an almost diffraction limited output which is efficiently coupled into a 50 mum core diameter fiber. The optical power transmitted through the fiber is increased by a factor of six when the feedback is applied to the diode laser. 85 percent of the power from the freely running laser diode is extracted in a high-quality beam and 80 percent of the output power is extracted through the fiber. The power transmitted through tile fiber scales linearly with the power of the laser diode. which means that a laser diode emitting 1.7 W multi-mode radiation would provide 1 W of optical power through a 50 mum core diameter fiber. The system is compact, portable, stable, and easy to operate.}},
  author       = {{Samsöe Andersen, Eva and Petersen, PM and Andersen, PE and Andersson-Engels, Stefan and Svanberg, Katarina}},
  booktitle    = {{LASER-TISSUE INTERACTIONS, THERAPEUTIC APPLICATIONS, AND PHOTODYNAMIC THERAPY}},
  editor       = {{Birngruber, R and van den Bergh, H}},
  isbn         = {{0-8194-4147-3}},
  issn         = {{0277-786X}},
  language     = {{eng}},
  number       = {{33}},
  pages        = {{134--139}},
  publisher    = {{SPIE}},
  title        = {{A novel diode laser system for photodynamic therapy}},
  url          = {{https://lup.lub.lu.se/search/files/2602856/2297553.pdf}},
  doi          = {{10.1117/12.446515}},
  volume       = {{4433}},
  year         = {{2001}},
}