VisIR High Power NIR to IR Picosecond Laser

High-power IR picosecond laser offering flexible pulse control, precise timing, and broad wavelength versatility for advanced imaging and ultrafast spectroscopy.

PULSE. POWER. PRECISION. IR AT ITS BEST.

Key Benefits

• High quality data — clean, stable pulses for reliable measurements
• Enhanced resolution — supports high-precision beam shaping for advanced imaging techniques
• Reduced photobleaching — controlled pulse energy and duration
• Reliable timing stability — precise, synchronous timing across trigger and sync outputs
• Consistent performance over long experiments — power stability under 3% RMS over 12 hours
• Easy integration & operation — USB, serial, and Sepia Extension Module connectivity options

Flexible Pulse Control for Diverse Experimental Setups

VisIR is a versatile high-power IR picosecond laser offering flexible pulse control, precise timing, and broad wavelength coverage including 1064 nm and 1550 nm. Its Master Oscillator Fibre Amplifier (MOFA)-based design supports both narrow picosecond pulses (70 ps) and extended pulse operation up to approximately 0.5 ns, with adjustable pulse durations for optimised excitation or depletion conditions. Variable repetition rates from single shot to 80 MHz enable seamless adaptation to diverse experimental requirements. Whether used in advanced microscopy, ultrafast spectroscopy, or IR sensing, VisIR delivers stable, high-quality performance within a compact, stand-alone platform.

Quantum LiDAR Using Entangled Photons

Light Detection and Ranging (LiDAR) is a method for determining ranges by targeting an object with a laser and measuring the time for reflected light to return. While highly successful, it struggles to distinguish genuine signals from background noise and potential jamming, especially in complex environments. Recent work has demonstrated that utilising spatio-temporal correlations inherent in entangled photons can effectively address these challenges. VisIR’s short-pulsed emissions and high peak power allow for efficient Spontaneous Parametric Down-Conversion (SPDC) in nonlinear crystals to generate entangled photon pairs with high stability — well suited to applications in quantum imaging and secure sensing.

Enhanced STED Performance with Stable IR Depletion

High-power IR pulses and precise timing control open new possibilities for efficient depletion in STED microscopy. The nearly perfectly circular TEM₀₀ beam profile (M² < 1.1) of VisIR ensures clean donut formation, enabling accurate beam shaping and higher depletion efficiency. Stable 766 nm generation and adaptable repetition rates further support reproducible high-resolution imaging in demanding multi-laser environments.

Configurable Fibre Coupling

VisIR can be equipped with fibre coupling for single-mode or multi-mode delivery. In practice, coupling reaches above 60% for single-mode fibres and above 80% for multi-mode fibres. Each coupled unit is prepared and aligned to provide a stable, well-controlled output at the fibre interface.