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Using a non-collinear FOPA, a source delivering 1.8 μm, 30 mJ, 13 fs laser pulses is demonstrated. This is the first step towards 100 mJ for ∼10 TW. This laser opens the way for high brightness soft X-ray attosecond pulses.
We describe a novel wavelength-stabilized multi-laser cavity, suited for kW-class dense spectral beam combining of broad-area diode laser emitters. The approach has been used to demonstrate spectral beam combining of multiple low fill-factor bars into a 100 μm fiber.
630 nm single mode lasers with a V-profile layer incorporated within the waveguide core exhibit reduced fast axis divergence (19° FWHM) while maintaining a low threshold current (30 mA), making them ideal for display applications.
A tensile-strained InGaP quantum-well laser structure operating around 630 nm has been designed. The structure offers low threshold current and beam divergence (19° full-width at half-maximum (FWHM) or 34° at 1/e2) simultaneously by incorporating a V-profile layer within the waveguide. Single-mode lasers (630 nm) were fabricated and tested. The threshold current for coated 1-mm-long and 3-m-wide ridge...
We report the design and fabrication of high-performance 650-nm lasers using a novel wafer structure that offers substantially independent control of the vertical far field and of the optical confinement factor. By incorporating a graded V-shaped layer into the epitaxial structure, a low divergence can be realized while retaining high optical overlap with the quantum wells and, therefore, a low threshold...
A reliable 808-nm single mode laser diodes with a low divergent beam and high light output power is demonstrated. The device is found to be applicable for longitudinal pumping of Nd-doped solid state lasers.
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