Frequency mixer MixTrain

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. • 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 Applications • Quantum Physics • Molecular/atomic cooling • Magneto-optic trapping • Bose-Einstein condensates • Atomic clocks • Frequency combs • High-resolution spectroscopy • Tunable visible/IR experiments The MixTrain utilizes quasi-phase matching in periodically poled crystals for sum- or difference frequency mixing of two cw-lasers. The system uses a motor controlled translation stage for changing the period of the crystal and a temperature stabilized oven capable of heating up to 180°C. All optics for beam shaping, polarization control, beam combination, and beam separation are included. An optical diode isolates the fiber laser input from back reflections from the setup. 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.