VECSEL-Based 590-nm Laser System With 8 W of Output Power for the Treatment of Vascular Lesions

Spectroscopic properties of Tb3+ as an ion for visible lasers

“…Its intense emission in the visible spectral range made Tb 3+ thus an interesting ion for the generation of visible laser light ever since then. Green and in particular yellow laser light is highly relevant in medicine for skin and eye treatment [3,4]. To date, the generation of coherent light in this spectral range remains a challenge: Semiconductor laser diodes suffer from a severe efficiency drop and reduced operational lifetimes at wavelengths beyond 530 nm and below 610 nm, the so called 'green gap' [5].…”

“…The black line acts as a guide to the eye with no physical meaning Fig. 4 Fluorescence decay curves of LiTbF 4 for different excitation intensities. The sample was excited by a continuous wave 2ω-OPSL emitting at 486.3 nm modulated by a 1:1 chopper at 40 Hz fluorescence decay time as short as 1.2 ms in the first part of the decay curve at the highest pump intensity of 10 5 Wcm −2 , which increases to 3.3 ms in the tail of the curve.…”

Two-chip power-scalable THz-generating semiconductor disk laser

“…SDLs are also capable of high-performance mode-locked operation [4][5][6][7][8] and intra-cavity frequency conversion with a wide coverage of wavelengths based on available materials [9,10], for which semiconductor technologies have been mastered in the past decades [11]. All recent demonstrations render VECSELs capable of being configured for a plethora of operation modes and being employed for various applications [12][13][14][15][16].…”

Treatment of telangiectasia on the cheeks with a compact yellow (585 nm) semiconductor laser and a green (532 nm) KTP laser: a randomized double‐blinded split‐face trial

“…The pulse duration was fixed to 25 ms based on pre‐clinical tests indicating good clinical end‐point. A detailed description of the system can be found in Kantola et al (in press).…”