versaScan L-532 OPOs

Green-Pumped NANOSECOND OPOS

  • 532 nm pumped for high energies in the near IR
  • Highest efficiencies for hemoglobin absorption wavelengths
  • ScanMaster software for intuitive GUI interface

The Spectra-Physics® versaScan L-532 series of 532 nm pumped OPOs are a versatile family of OPOs speci cally designed to deliver high energies in the near IR region. This OPO family is well suited for biological applications such as photoacoustic imaging and other applications requiring high energies in the hemoglobin absorption regions.

The versaScan L-532 series OPOs are based on the Spectra-Physics Scan Series OPO designs. Broadband (BB), high energy double pumped (BB-HE), and midband (MB) models are available. Optional internal separation optics separate the signal wave from the idler wave. The OPOs can be automated through the use of a motorization option controlled by ScanMaster software. The MB models can be doubled with uvScan.

The OPOs are tailored for the long pulses of the Spectra-Physics Quanta-Ray® lasers to deliver the highest ef ciencies at the lowest uences. Any Quanta-Ray laser can be used as a pump for this family of OPOs, up to an industry leading 800 mJ at 532 nm, delivering the highest energy OPO output available. The MB version offers tunability to below 660 nm, making it the bluest green-pumped OPO on the market thus providing greater access to hemoglobin dye tags.

The versaScan L-532 OPO series offers the lowest pump thresholds on the market making them the most ef cient and robust OPOs available. Lower pump uences result in longer lifetimes of the internal components, especially the BBO crystal.

In addition, the BBO crystals are coated with a special “p-coating” – a layer that protects the crystal surface from degradation due to environmental effects. Because the versaScan L-532 OPO is simple to operate, training at installation is typically suf cient for customers with no laser experience to operate and maintain the OPO.

Applications

Photoacoustic imaging
Remote sensing
LIDAR
Vibrational spectroscopy
Medical and biological processes
 
 BB
200
BB
450
BB
8002
BB-HE
2005
BB-HE
450
BB-HE
8002
 
Maximum Pump Energy 200 mJ 450 mJ 800 mJ 200 mJ 450 mJ 800 mJ  
Pulse Energy Max (S) 52 mJ 115 mJ 205 mJ 58 mJ 130 mJ 230 mJ  
Pulse Energy Max (S+I) 68 mJ 150 mJ 270 mJ 76 mJ 172 mJ 305 mJ  
Linewidth 40–180 cm-1 45–200 cm-1  
OPO Pulse Width 0–3 ns < pump  
Repetition Rate1, 3 0–100 Hz 0–100 Hz 0–50 Hz 0–100 Hz 0–100 Hz 0–50 Hz  
Tuning Range 680–950 nm, 1200–2200 nm 675–980 nm, 1170–2440 nm  
Beam Divergence 6–18 mrad 7–20 mrad  
Beam Diameter <10 mm <13 mm <16 mm <10 mm <13 mm <16 mm  
 
 MB
2005
MB
450
MB
5502
 
Pump Energy 200 mJ 450 mJ 550 mJ  
Pulse Energy Max (S) 45 mJ 100 mJ 122 mJ  
Pulse Energy Max (S+I) 72 mJ 162 mJ 195 mJ  
Linewidth4 <25 cm-1  
OPO Pulse Width 0–3 ns < pump  
Repetition Rate1, 3 0–100 Hz 0–100 Hz 0–50 Hz  
Tuning Range 660–1000 nm, 1140–2550 nm  
Beam Divergence Horizontal <1 mrad, Vertical 7–88 mrad  
Beam Diameter <10 mm <13 mm <14 mm  

1. 50–100 Hz with option /HP (with internal high power beam dump for 532 nm and ceramic beam tubing)
2. Contact Spectra-Physics for large crystal OPO delivery times
3. Repetition rates >20 Hz result in lower OPO efficiency
4. -1 for wavelengths between 780–920 nm and 1250–1675 nm
5. For INDI pump, repetition rate must not exceed 10 Hz

versaScan L-532 Dimensions

 

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