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ZFA-V-633 – Diode Laser at 633 nm

The ZFA-V-633 long coherent length diode laser at 633 nm is a high-performance continuous-wave (CW) laser source engineered for precision scientific, industrial, and metrology applications requiring exceptional coherence, wavelength stability, and beam quality. Operating at the widely used red wavelength of 633 nm with ultra-narrow spectral characteristics and a coherent length exceeding 1 meter, this laser is ideal for interference-based measurements, holography, and optical instrumentation. The laser delivers outstanding long-term stability with RMS power stability down to <1% over 4 hours, ensuring reliable operation in demanding laboratory and industrial environments. Its compact design, long operational lifetime of 10,000 hours, and user-friendly integration make it an ideal solution for research laboratories, OEM integration, and advanced optical systems.

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Features
  • Long coherent length exceeding 1 meter for interference and holography applications
  • Highly stable wavelength at 633 nm ±0.5 nm for precision optical measurements
  • Output power options from 1 mW to 50 mW for flexible application integration
  • Near TEM00 transverse mode for superior beam quality
  • Excellent beam quality with M² factor <1.5
  • Low beam divergence (<1.5 mrad) for precise optical alignment
  • High polarization ratio >50:1 (optional >100:1)
Applications
  • Holography and interferometry
  • Raman spectroscopy and fluorescence excitation
  • Flow cytometry and biomedical instrumentation
  • DNA sequencing systems
  • Laser radar and optical sensing
  • Precision measurement and metrology
  • Optical alignment and calibration
  • Scientific research and laboratory experiments
Specifications
Parameter Specification
Model ZFA-V-633
Central wavelength 633 ± 0.5 nm
Operating mode Continuous Wave (CW)
Output power >1 mW up to 50 mW
Power stability (RMS, 4 hours) <3%, <2%, <1%
Transverse mode Near TEM00
Coherent length >1 meter
Beam quality (M² factor) <1.5
Beam diameter at aperture ~2.0 mm
Beam divergence (full angle) <1.5 mrad
Polarization ratio >50:1 (>100:1 optional)
Polarization orientation Horizontal ±5° (Vertical optional)
Warm-up time <5 minutes
Beam height from base plate 30 mm
Operating temperature 20 °C to 30 °C
Power supply QDI-S-F (100-240 VAC)
Expected lifetime 10,000 hours
Warranty 1 year