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Frequency-Converted Lasers

Frequency doubling and frequency quadrupling

Nonlinear frequency conversion techniques access wavelengths that cannot be generated directly from laser diode technology. Via second or fourth harmonic generation, TOPTICA laser systems can access the UV, blue, green, yellow and orange spectral ranges at high powers. TOPTICA offers tunable, single-frequency systems at virtually any wavelength between 190 nm and 780 nm, employing ultrastable seed lasers, power amplification in semiconductor or fiber amplifiers, and a proprietary bow-tie cavity design – all in established pro technology.

Wavelength range Output power Typical tuning range Typical mode-hop-free tunability Typical linewidth (5 µs)

SHG pro

190 .. 800 nm

Up to 20 W

1 - 15 nm

> 20 GHz

< 500 kHz

DL-SHG pro

320 .. 680 nm

1 .. 50 mW

2 .. 15 nm

> 20 GHz

< 500 kHz

TA-SHG pro

330 .. 780 nm

Up to 2 W

2 .. 15 nm

> 20 GHz

< 500 kHz

TA-FHG pro

190 .. 390 nm

Up to 500 mW

1 .. 4 nm

> 40 GHz

< 500 kHz