Nanosecond laser system PhotoSonus T

Q-switchedtunablelaboratory

PhotoSonus T is a high energy table-top tunable laser designed for photoacoustic imaging, particularly when high sample imaging depth is required. This desktop version of a high energy tunable laser source is optimized for imaging larger volumes of tissue and integrates a nanosecond optical parametric oscillator and Nd:YAG Q-switched laser in a compact housing.

Features

• Hands-free, automated wavelength tuning from 330 to 2600 nm
• Ultra-wide OPO signal tuning range from 660 to 1320 nm
• Up to 230 mJ in range 660–2600 nm, 35 mJ in range 330–660 nm
• Narrow linewidth across tuning range
• 3–5 ns pulse duration
• Remote control via keypad or PC
• Separate output port for 532 nm beam; output for 1064 nm is optional
• OPO pump energy monitoring
• Fast wavelength switching within entire signal or idler ranges

Applications

• Photoacoustic imaging
• Flash photolysis
• Photobiology
• Remote sensing
• Non-linear spectroscopy

Description
Three models with different output pulse energy values and repetition rates are available, with the most powerful model delivering more than 230 mJ pulse energy. The laser maintains a narrow linewidth (<10 cm⁻¹) across almost the entire tuning range, making it suitable for various spectroscopy applications. The system is controlled remotely via keypad or PC using supplied LabVIEW™ drivers, and the remote pad features a backlit display for ease of use even with laser safety glasses. Maintenance is straightforward and cost-effective, with flashlamp replacement possible without misalignment or performance loss. The OPO pump energy monitoring system helps extend the lifetime of optical components.

Benefits

• High pulse energy (up to 230 mJ) is highly beneficial for photoacoustic imaging applications
• Superior tuning resolution (1–2 cm⁻¹) enables high quality spectra recording
• High integration level saves laboratory space
• Flashlamp replacement without misalignment reduces maintenance costs
• In-house design and manufacturing of complete systems, including pump lasers, ensures reliable warranty and post-warranty service and spare parts supply
• Multiple control interfaces: USB, RS232, optional LAN and WLAN for easy integration
• Attenuator and fiber bundle coupling options for versatile experimental setups

Options

• -SH: Efficient second harmonic generator for 330–660 nm range
• -ER: Extended OPO signal range (for T+ model only)
• -FBC: Fiber bundle coupled output
• -ATTN: Pulse energy attenuator
• -H: Additional output for 1064 nm pump wavelength
• -EM: OPO energy meter
• -AW: Water-air cooled power supply

Specifications

• Wavelength tuning: 330–2600 nm (automated)
• OPO signal range: 660–1320 nm (T-10, T-20), 660–1064 nm (T+)
• OPO idler range: 1065–2600 nm (all models)
• SH (optional): 330–660 nm (T-10, T-20), 330–530 nm (T+)
• Max pulse energy: OPO: 150 mJ (T-10), 130 mJ (T-20), 230 mJ (T+); SH: 25 mJ (T-10), 21 mJ (T-20), 35 mJ (T+)
• Linewidth: <15 cm⁻¹
• Tuning resolution: 1 cm⁻¹ (signal/idler), 2 cm⁻¹ (SH)
• Pulse duration: 3–5 ns (OPO), 4–6 ns (pump laser)
• Typical beam diameter: 7 mm (T-10, T-20), 9 mm (T+)
• Typical beam divergence: <2 mrad (OPO), <0.6 mrad (pump laser)
• Polarization: Signal beam horizontal, idler and SH beams vertical
• Pump wavelength: 532 nm
• Pulse energy stability (StdDev): <2.5%
• Pulse repetition rate: 10 Hz (T-10, T+), 20 Hz (T-20)
• Unit size (W × L × H): 456 × 821 × 270 mm
• Power supply size (W × L × H): 330 × 490 × 585 mm
• Umbilical length: 2.5 m
• Water consumption (max 20 °C): <10 l/min
• 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 (T-10), <2.5 kVA (T-20, T+)
• Cleanliness: not worse than ISO Class 9

Note

• Laser must remain connected to mains electricity at all times. If disconnected for more than 1 hour, a warm-up period of several hours is required before switching on.