TA / FA FHG pro – Frequency Quadrupled Tunable Diode Laser

TOPTICA’s TA FHG pro – Frequency quadrupled tunable diode laser

Tunable “deep UV” laser radiation: 205 .. 295 nm
Up to 100 mW output power
Transversal single-mode beam, single-frequency output
Linewidth 1 MHz typ., can be narrowed by active frequency locking
Seed: Tunable, grating stabilized diode laser
Amplifier: Semiconductor or fiber amplifier
Two cascaded SHG pro doubling stages
Designed for ultra high resolution spectroscopy (e.g. Hg, H, Mg, Al)

The TA / FA FHG pro is a tunable, diode-based laser source in the deep UV spectral range. The system consists of an external cavity diode laser, a high power semiconductor (TA) or fiber (FA) amplifier, and two cascaded second harmonic generation stages (SHG pro). The TA / FA FHG pro systems cover wavelengths from 200 nm to 295 nm – with best possible beam quality, long coherence length, true cw operation, and in a reliable setup.

Technical Information

TA / FA FHG pro wavelength coverage: 205 .. 295 nm (shaded wavelengths are coming up).

Specifications:

Wavelength range *	205 .. 295 nm (with semiconductor amplifier) 260 .. 295 nm (with fiber amplifier)
Seed laser	DL pro, DL 100/pro design, DL DFB
Amplifier	Semiconductor amplifier TA pro or fiber amplifier
Doubling stage	2 x SHG pro
Coarse tuning	1 .. 4 nm
Continuous scan range	> 40 GHz
Operation	Single frequency
Linewidth	< 1 MHz with DL pro
Output power	Up to 100 mW, wavelength dependent
Spatial mode	Near diffraction limited
Optical isolation	Included, 2 x 60 dB
Beam shaping	Included
Water cooling	Not required
Control electronics	DC110, 19” double-stage rack
Warm-up time	< 5 min typ.
Operating voltage	100..120 V/ 220..240 V AC 50..60 Hz (auto detect)
Power consumption	< 150 W typ., 600 W max.