Nanosecond laser source PhotoSonus M

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PhotoSonus M is a high energy, mobile, tunable wavelength laser source designed for photoacoustic imaging, addressing the demand for high output energies in imaging larger tissue volumes. This updated laser source integrates a time-tested Ekspla nanosecond pump laser, parametric oscillator, power supply, and cooling unit into a single robust housing, ensuring mobility, ease of use, and low maintenance cost. The platform is highly flexible, fully motorized, and computer controlled, with user trigger outputs and inputs, and offers special options such as motorized switching between OPO signal and idler, motorized attenuator, internal energy meter, and electromechanical output shutter.

A fast wavelength switching option allows each laser pulse to have a different wavelength within the entire signal or idler range and at any sequence, making PhotoSonus M an irreplaceable imaging source for any photoacoustic system. For even higher sample imaging depth and resolution, the PhotoSonus M+ variant offers up to 250 mJ maximum pulse energy. Outputs of both PhotoSonus M and M+ can be coupled with almost any type of fiber bundle.

Features

• High output energy up to 250 mJ
• Wide tuning range from 330 to 2300 nm
• Ultra-wide OPO signal tuning range from 660 to 1320 nm
• 10 Hz or 20 Hz pulse repetition rate
• Integrated pump laser, OPO, and PSU in a single mobile unit
• Low maintenance cost
• Fiber bundle connectors with safety interlock
• Fast wavelength switching within entire signal or idler range between two consecutive pulses
• Integrated energy meter (optional)
• Motorized attenuator (optional)
• Access to pump laser wavelengths 1064/532 nm (optional)

Applications

• Pre-clinical and clinical photoacoustic imaging where high sample imaging depth is required
• Biomedical research and imaging of larger tissue volumes

Specifications

• OPO signal wavelength range: 660–1320 nm (M-10, M-20), 660–1064 nm (M+)
• SH extension range (optional): 330–659 nm (M-10, M-20), 330–530 nm (M+), 330–659 nm (M+) with extended signal range
• Idler (optional): 1065–2300 nm (all models)
• OPO output max pulse energy: >180 mJ (M-10), >160 mJ (M-20), >250 mJ (M+)
• Pulse repetition rate: 10 Hz (M-10, M+), 20 Hz (M-20)
• Scanning step: Signal 0.1 nm, Idler 1 nm
• Pulse duration: 3–5 ns
• Signal linewidth: <15 cm⁻¹
• Typical signal beam diameter (1/e²): 7 ± 2 mm (M-10, M-20), 9 ± 2 mm (M+)
• Unit size (W × L × H): 434 × 672 × 887 mm
• Operating room temperature: 18–27 °C
• Relative humidity: 20–80% (non-condensing)
• Power requirements: 200–240 VAC, single phase, 50/60 Hz
• Power consumption: <1.5 kVA (M-10), <2.5 kVA (M-20, M+)

Performance and Drawings

• Typical output pulse energy vs. wavelength curves for signal and idler available
• Outline drawings with all dimensions in millimetres

Ordering Information

• Ordering information and configuration options available via dedicated ordering image

Publications

• Numerous peer-reviewed publications demonstrate the use of PhotoSonus M in advanced photoacoustic imaging applications, including breast cancer diagnostics, theranostic agents, cerebrovascular monitoring, small animal tomography, and more.

Characteristics / Technical Specifications

• Model variants: PhotoSonus M-10, PhotoSonus M-20, PhotoSonus M+
• OPO signal wavelength range: 660–1320 nm (M-10, M-20), 660–1064 nm (M+)
• SH extension range (optional): 330–659 nm (M-10, M-20), 330–530 nm (M+), 330–659 nm (M+) with extended signal range
• Idler (optional): 1065–2300 nm (all models)
• OPO output max pulse energy: >180 mJ (M-10), >160 mJ (M-20), >250 mJ (M+)
• Pulse repetition rate: 10 Hz (M-10, M+), 20 Hz (M-20)
• Scanning step: Signal 0.1 nm, Idler 1 nm
• Pulse duration: 3–5 ns
• Signal linewidth: <15 cm⁻¹
• Typical signal beam diameter (1/e²): 7 ± 2 mm (M-10, M-20), 9 ± 2 mm (M+)
• Unit size (W × L × H): 434 × 672 × 887 mm
• Operating room temperature: 18–27 °C
• Relative humidity: 20–80% (non-condensing)
• Power requirements: 200–240 VAC, single phase, 50/60 Hz
• Power consumption: <1.5 kVA (M-10), <2.5 kVA (M-20, M+)