A novel diode laser system for photodynamic therapy

Samsöe Andersen, Eva (författare): Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Petersen, PM (författare)

Andersen, PE (författare)

Andersson-Engels, Stefan (författare): Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Svanberg, Katarina (författare): Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH

Birngruber, R (redaktör/utgivare)

van den Bergh, H (redaktör/utgivare)

(creator_code:org_t)

SPIE, 2001
2001
Engelska.
Ingår i: LASER-TISSUE INTERACTIONS, THERAPEUTIC APPLICATIONS, AND PHOTODYNAMIC THERAPY. - : SPIE. - 0277-786X .- 1996-756X. - 0819441473 ; 4433:33, s. 134-139

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Abstract Ämnesord

Stäng

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.

Av författaren/redakt...: Samsöe Andersen, ...; Petersen, PM; Andersen, PE; Andersson-Engels ...; Svanberg, Katari ...; Birngruber, R; visa fler...; van den Bergh, H; visa färre...

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