ZNA-DG-491

The ZNA-DG-491 LD Pumped All-Solid-State Blue Laser is a high-power 491 nm continuous-wave (CW) laser engineered for demanding scientific, biomedical, and industrial applications. Built on reliable diode-pumped solid-state (DPSS) technology, this ultra-compact blue laser delivers output power options ranging from 2 mW up to 400 mW, making it ideal for high-intensity excitation and precision optical systems. Designed for durability and long-term operation, the laser provides up to 10,000 hours of lifetime, fast warm-up time (<10 minutes), and universal AC input (90–264 VAC), making it a cost-effective and dependable 491 nm DPSS blue laser solution.

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Features
  • 491 nm ±1 nm wavelength precision
  • LD pumped all-solid-state (DPSS) technology
  • Continuous Wave (CW) operation
  • Wide output power range: 2–400 mW
  • Excellent beam quality (Near TEM00)
  • Low beam divergence (<3 mrad full angle)
  • Beam diameter at aperture: ~4 mm (1/e²)
  • High polarization ratio (>100:1)
  • Power stability options: <3%, <5%, or <10% RMS (4 hours)
  • Compact and robust design
Applications
  • Fluorescence microscopy and imaging
  • Confocal and multiphoton microscopy
  • Flow cytometry
  • Raman spectroscopy
  • Biomedical research
  • Laser display systems
  • Optical metrology and calibration
  • OEM integration in photonics systems
Specifications
Parameter Specification
Model ZNA-DG-491
Laser Type LD Pumped All-Solid-State (DPSS)
Wavelength 491 ± 1 nm
Operating Mode Continuous Wave (CW)
Output Power >2, 50, 100, …, 400 mW
Power Stability (RMS, 4h) <3% / <5% / <10%
Transverse Mode Near TEM00
Beam Divergence (Full Angle) <3 mrad
Beam Diameter at Aperture (1/e²) ~4 mm
Polarization Ratio >100:1
Beam Height from Base Plate 100 mm
Warm-Up Time <10 minutes
Operating Temperature 15–30 °C
Power Supply QDI-E-GFS (90–264 VAC)
Expected Lifetime 10,000 hours
Warranty 1 year