SHG pro

Frequency-doubling unit

Compact module for resonant frequency doubling
Best cw conversion rates
Wavelengths: 190 .. 800nm, linewidth < 500 kHz
Highest stability and Ease of Use: pro technology
For Ti:Sapphire, dye, gas, fiber and diode lasers

The SHG pro is the device of choice if existing lasers are to be frequency doubled. Designed in TOPTICA’s pro technology, it unites highly stable performance and convenient operation. Mirror and crystal holders can be adjusted without opening the resonator cover. A wide range of non-linear crystals covers SHG wavelengths from 190 to 800 nm. TOPTICA offers competent support for adapting the unit to customer requirements.

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Specifications

Wavelength range*	380 .. 1600 nm → 190 .. 800 nm
Optical conversion efficiency**	380 - 500 nm → 190 - 250 nm: 5 - 10% 500 - 700 nm → 250 - 350 nm: 12 - 20% 700 - 900 nm → 350 - 450 nm: 20% 900 - 1600 nm → 450 - 800 nm: 40 - 60%
Beam quality	Near-diffraction limited
Beam diameter	1...3 mm
Continuous scan range	> 80 GHz @ 400 nm

Additional Information

SHG pro: Schematic setup

TOPTICA's variety of non-linear crystals and their frequency converted wavelength range. All crystals have premium quality antireflection coating.
Options
- FiberDock SHG input: Fiber coupling of fundamental (input) beam (recommended)
- Double Piezo Lock: High-bandwidth stabilization of the SHG pro resonator
- FiberDock SHG: Fiber coupling of SHG output beam
- EOM/SHG pro: Electro-Optic Modulator for error signal generation (Pound-Drever-Hall method)
Applications
- Frequency-doubling of existing TOPTICA diode lasers
- Frequency-doubling of 3rd party lasers
  (single-frequency lasers, e.g. Ti:Sapphire, Cr:LiSaF, dye lasers, gas lasers, DPSS, diode and fiber lasers)
Downloads
- Product Brochure: Frequency-Converted Diode Lasers
- Product Brochure: Scientific Lasers
- Technical Drawings: SHG pro
Literature
- Article: R. Kirner et al., Mask-aligner lithography using a continuous-wave diode laser frequency-quadrupled to 193 nm, Optics Express (2018)
- Article: Active and passive stabilization of a high-power UV frequency-doubled diode laser, CLEO, OSA Technical Digest (Optical Society of America, 2016)
- Article: Short, shorter, shortest: Diode lasers in the deep ultraviolet, Laser Focus World, June 2016
- Article: Kurz, kürzer, am kürzesten, Best of (2015)
- Article: More colors! Diode lasers reach Yellow and Orange, Physics' Best (2013)
- Article: Its Time For New Clocks, Physics Best (2012)
- Article: Frequenzkonvertierte cw-Lasersysteme für Forschung und Industrie, Physik Journal (2007)
Related Products
- Tunable diode lasers: CTL, DL pro, DL 100, DFB pro
- Amplified diode lasers: TA pro, BoosTA, BoosTA pro
- High-power frequency converted lasers: DL-SHG pro, TA-SHG pro, TA-FHG pro
- PDD110: Pound-Drever-Hall detector
- Photonicals: Laboratory tools and accessories, e.g. Fabry-Perot Interferometers and Wavelength Meters

Polarization	Linear, > 100 : 1
Residual infrared	< 1% typ. (< 0.1% with extra filter)
Locking scheme	Pound-Drever-Hall with automatic relock
Output power noise	< 3% typ., depending on fundamental laser
SHG cavity leak rate	< 1E-3 mbar l/s
Control Electronics	SYS DC 110 12" with DTC 110/SVL and PID 110
Warm-up time	< 5 min typ.
Dimensions laser head (H x W x D)	216 x 90 x 400 mm³
Weight laser	Up to 10 kg
Dimensions control unit	Single stage 19" rack
Weight control unit	Up to 15 kg
Operating voltage	100 .. 120 V / 220 .. 240 V AC, 50 .. 60 Hz (auto detect)
Power consumption	< 50 W
PC Interface	Analog control
Environment temperature	15 - 30 °C (operating), 0 - 40 °C (storage and transport)
Environment humidity	Non-condensing