• Input wavelength range 690 to 1020 nm
  • Choose output range from 422–670 nm for SFM and 1.1–4.2 μm for DFM
  • Temperature stabilized crystal mount for maximum conversion efficiency and stability of output power
  • All solid state solution providing tunable CW visible and near to mid-IR output

MixTrain is an advanced stand-alone device that enables sum or difference frequency mixing of single frequency CW laser beams in periodically polled crystals. High mixing efficiencies are achieved by precision temperature control to ensure optimal quasi-phase matching over the entire tuning range of the Matisse®. When combined with a high power fiber laser, sum frequency output exceeding 2 W is readily achieved.

The MixTrain is equipped with all optics needed for combining input lasers, mixing in periodically poled crystals, and separation of the desired sum (SFM) or difference (DFM) frequency mixing output from the residual input beams. The platform includes a lens to collimate the output, and an isolator to protect the fiber laser from damage due to back reflections.

Periodically poled mixing crystals are mounted in a removable configuration to allow for alternate fiber input wavelengths. The mixing crystals are housed in a temperature stabilized oven with motorized control, providing hands free tuning over >100 nm of the visible spectrum. When pumped with the Matisse C and the appropriate fiber laser the MixTrain provides hands-free, all solid state output from 422–670 nm for SFM – a attractive and versatile alternative to a CW dye laser. Flexible configuration of mixing and separating optics enables output from 1.1–4.2 μm for DFM, depending on fiber laser input.


High-resolution spectroscopy
Molecular/atomic cooling and magneto-optic trapping
Tunable visible/IR experiments
Bose-Einstein condensates
Atomic clocks
Frequency combs
Wavelength Range 422-518 nm 488-615 nm 515-670 nm  
Output Power2 >1.0 W @ 450 nm >2.0 W @ 520nm >1.0 W @ 555 nm  
Automated Scan Range >20 GHz  
Fiber Laser Input Power/Wavelength3 5 W @ 1064 nm 10 W @ 1550 nm 5 W @ 1950 nm  
Tunable Wavelength Input 700–1020 nm  
Wavelength Range 1120–2300 nm 1250–1450 nm;1650–2800 nm 2050-4200 nm  
Output Power2 >100 mW @ 1500 nm >200 mW @ 1700 nm >10 mW @ 2500 nm  
Automated Scan Range >60 GHz  
Fiber Laser Input Power/Wavelength3 5 W @ 532 nm 10 W @ 1550 nm 5 W @ 1064 nm  
Tunable Wavelength Input 690–1020 nm 690–1000 nm 690–850 nm  
SFM Tunable Input Power 2.0–6.0 W >20% >40% >20%  
DFM Tunable Input Power 2.0–6.0 W >2% >4% >0.2%  
Tunable Pump Laser5 TEM00, M2<1.1, single frequency laser, linewidth 
Fiber Pump Laser66 TEM00, M2<1.1, single frequency laser, linewidth 
Ambient Conditions Constant temperature in the 20–25°C range  
Laboratory Vibrational isolated optical table, dust-free air (flow box)  
Voltage 115/230 V, single phase, 50/60 Hz  
Size (L × W × H) 17.13” x 13.94” x 9.37–9.92” (435 mm x 354 mm x 238–252 mm)  

1. Due to our continuous product improvement program, specifications are subject to change without notice.
2. Mixtrain output power is given at the 4.5 W peak output of the tunable laser and a fiber laser input of 10 W at the appropriate wavelength. Contact factory for
    performance specifications at desired output wavelength
3. Contact factory to inquire about non-standard fiber laser wavelengths.
4. Typical performance is only for Matisse Ti:Sapphire and dye pump lasers, calculated as a ratio of Mixtrain output power to Matisse input power.
5. Output linewidth of Mixtrain is determined by the broadest input linewidth. For specified linewidth of Matisse, refer to the appropriate Spectra-Physics datasheet.
6. Output linewidth of Mixtrain is determined by the broadest input linewidth. Refer to fiber laser manufacturer’s datasheet for linewidth of fiber laser.

MixTrain Dimensions

WaveTrain 2 laser dimensions

MixTrain Optical Layout

WaveTrain 2 laser dimensions

Similar Products

Product Description
WaveTrain 2
CW frequency doublers

Supporting Products

Product Description
Matisse C
Compact ultra-narrow linewidth Ti:Sapphire tunable ring laser
Matisse 2
Narrow linewidth tunable ring dye or Ti:Sapphire lasers
Millennia eV
Highest power 532 nm pump lasers, 
up to 25 W
Low power thermal sensors – 20 mW to 10 W