Effects of light scattering on the parameters of a laser

Anan'ev, Yu. A.; Lyubimov, V. V.; Sedov, B. M.

doi:10.1007/bf00618366

Cited by 3 publications

(3 citation statements)

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“…Predicted and observed in [27,28], O-rings in the far field intensity distribution (Figure 15) were also observed in our experiments under pumping with each of the three patterns, even with a single-mode pattern. The appearance of O-rings in the last case, in our opinion, might have resulted from a weak light scattering caused by dielectric coatings at Ti:Sapphire crystal and laser resonator mirrors.…”

Section: The Influence Of Pump Fluence Distribution On Ti:sapphire Laser Operationsupporting

confidence: 86%

“…It was observed that the angular characteristics of the Ti:Sapphire laser with MLA and DD, under pumping at a high W PUMP level, acquired features associated with intracavity scattering. To explain this, we refer to the results obtained in [27][28][29], which demonstrate the influence of intracavity scattering on laser generation. Later results [27][28][29] were summarized in a monograph [30].…”

Section: The Influence Of Pump Fluence Distribution On Ti:sapphire Laser Operationmentioning

confidence: 99%

“…To explain this, we refer to the results obtained in [27][28][29], which demonstrate the influence of intracavity scattering on laser generation. Later results [27][28][29] were summarized in a monograph [30]. A short explanation, based on [30], is provided below.…”

Section: The Influence Of Pump Fluence Distribution On Ti:sapphire Laser Operationmentioning

confidence: 99%

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Engineering of Ti:Sapphire Lasers for Dermatology and Aesthetic Medicine

Tarasov¹,

Chu²

2021

Applied Sciences

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This review describes new engineering solutions for Ti:Sapphire lasers obtained at Laseroptek during the development of laser devices for dermatology and aesthetic medicine. The first device, PALLAS, produces 311 nm radiation by the third harmonic generation of a Ti:Sapphire laser, which possesses similar characteristics to excimer laser-based medical devices for skin treatments. In comparison to excimer lasers, Ti:Sapphire laser services are less expensive, which can save ~10% per year for customers compared to initial excimer laser costs. Here, the required characteristics were obtained due to the application of a new type of diffraction grating for spectral selection. The second device, HELIOS-4, based on the Ti:Sapphire laser, produces 300 mJ, 0.5 ns pulses at 785 nm for tattoo removal. The characteristics of HELIOS-4 exceed those of other tattoo removal laser devices represented in the medical market, despite a simple and inexpensive technical solution. The development of the last laser required the detailed study of a generation process and the investigation of the factors responsible for the synchronization of the generation in Ti:Sapphire lasers with short (several millimeters) cavities. The mechanism that can explain the synchronization in such lasers is suggested. Experiments for the confirmation of this concept are conducted and analyzed.

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Section: The Influence Of Pump Fluence Distribution On Ti:sapphire Laser Operationsupporting

confidence: 86%