High power visible diode laser for the treatment of eye diseases by laser coagulation

Arne Heinrich; Clemens Hagen; Maximilian Harlander; Bernhard Nussbaumer

doi:10.1117/12.2074575

20 March 2015 High power visible diode laser for the treatment of eye diseases by laser coagulation

Arne Heinrich, Clemens Hagen, Maximilian Harlander, Bernhard Nussbaumer

Proceedings Volume 9307, Ophthalmic Technologies XXV; 93071P (2015) https://doi.org/10.1117/12.2074575
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

We present a high power visible diode laser enabling a low-cost treatment of eye diseases by laser coagulation, including the two leading causes of blindness worldwide (diabetic retinopathy, age-related macular degeneration) as well as retinopathy of prematurely born children, intraocular tumors and retinal detachment. Laser coagulation requires the exposure of the eye to visible laser light and relies on the high absorption of the retina. The need for treatment is constantly increasing, due to the demographic trend, the increasing average life expectancy and medical care demand in developing countries. The World Health Organization reacts to this demand with global programs like the VISION 2020 “The right to sight” and the following Universal Eye Health within their Global Action Plan (2014-2019). One major point is to motivate companies and research institutes to make eye treatment cheaper and easily accessible. Therefore it becomes capital providing the ophthalmology market with cost competitive, simple and reliable technologies. Our laser is based on the direct second harmonic generation of the light emitted from a tapered laser diode and has already shown reliable optical performance. All components are produced in wafer scale processes and the resulting strong economy of scale results in a price competitive laser. In a broader perspective the technology behind our laser has a huge potential in non-medical applications like welding, cutting, marking and finally laser-illuminated projection.

Citation Download Citation

Arne Heinrich, Clemens Hagen, Maximilian Harlander, and Bernhard Nussbaumer "High power visible diode laser for the treatment of eye diseases by laser coagulation", Proc. SPIE 9307, Ophthalmic Technologies XXV, 93071P (20 March 2015); https://doi.org/10.1117/12.2074575

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KEYWORDS

Semiconductor lasers

Eye

Second-harmonic generation

Laser coagulation

Visible radiation

Laser applications

Laser marking

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