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ZFA-V-442 – Diode Laser at 442 nm

The ZFA-V-442 is a high-stability 442 nm CW diode laser engineered for applications requiring long coherence length and precise wavelength control. With a narrow wavelength tolerance of 442 ±0.5 nm and a coherence length exceeding 1 meter, this laser source is ideal for interferometric measurements, holography, and precision optical systems. This blue 442 nm diode laser is widely used in fluorescence excitation, Raman spectroscopy, flow cytometry, LIDAR systems, and precision measurement applications.

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Features
  • 442 ±0.5 nm stabilized blue wavelength
  • Long coherence length >1 m
  • Continuous Wave (CW) operation
  • Output power options up to 30 mW
  • Excellent power stability (<1% RMS available)
  • High polarization ratio (>50:1, optional >100:1)
  • Low divergence elliptical beam profile
Applications
  • Holography
  • Interferometry
  • Fluorescence analysis
  • Photolithography
  • Flow cytometry
  • DNA sequencing
  • Raman spectroscopy
  • Laser radar (LIDAR)
  • Precision metrology
Specifications
Parameter Specification
Central Wavelength 442 ±0.5 nm
Operating Mode Continuous Wave (CW)
Output Power Options >1 mW, 2 mW, 3 mW … up to 30 mW
Power Stability (RMS, 4 hrs) <1%, <2%, <3%
Transverse Mode Multimode
Coherence Length >1 m
Beam Diameter at Aperture (1/e²) ~2.5 × 1.0 mm
Beam Divergence (Full Angle) ~0.5 × 4.0 mrad
Polarization Ratio >50:1 (>100:1 optional)
Polarization Direction Horizontal ±5° (Vertical optional)
Warm-Up Time <5 minutes
Beam Height from Base Plate 30 mm
Operating Temperature 20–30 °C
Power Supply QDI-S-F (100–240 VAC)
Expected Lifetime 10,000 hours
Warranty 1 year