SureLock™ 633nm Wavelength Stabilized Laser Diode

Ondax’s 633nm High-Power Wavelength Stabilized Laser is a high-power,single frequency, collimated laser packaged in an ultra-compact, TO-can footprint. The narrowed linewidth, low power consumption, and broad temperature operating characteristics deliver affordable, portable instrument-quality performance for a broad range of instrumentation applications. All SureLock™ Series lasers are stabilized using the Ondax PowerLocker® Volume Holographic Grating (VHG), ensuring precise, ultra-stable center wavelengths, low temperature dependence and consistent optical performance over the locked region.

Clindrical Diode


  • Compact 9mm TO can footprint
  • Narrow spectral linewidth – 150MHz typical, 0.06nm maximum
  • Collimated output beam
  • Wavelength stability across operating range <0.01nm/°C
  • Test Data provided with every laser
  • Narrow-band ASE filters available


  • HeNe Replacement
  • Raman Spectroscopy
  • Flow Cytometry
  • Metrology
  • Data Storage
  • Interferometry
  • Confocal Microscopy
  • Particle Counting
  • Fluorescence
  • Nondestructive Testing
SureLock™ Specifications
Parameter Symbol Min Typ Max Unit
Output Power Po 40/70 mW
Center Wavelength P 632.5 632.9 633.25 nm
Linewidth Δλ 150MHz 0.06nm
Central Stabilized Temperature Tc 15 25 35 °C
Stabilized Temperature Range Tr 10 °C
SureLock™ Operating Specifications
Parameter Symbol Min Typ Max Unit
Threshold Current Ith 64 80 mA
Operating Current Iop 160 210 mA
Operating Voltage Vop 2.8 3.0 V
Beam Divergence, Perpendicular Qv <2 mrad
Beam Divergence, Parallel Qh <2 mrad
Differential Efficiency DE (dP/dI) 0.7 mW/mA
Operating Temperature2 Top 0 35 °C
Storage Temperature2 Ts -10 60 °C
Polarization 100:1
Polarization Orientation TE

All specifications are at rated power with a case temperature of 25°C unless otherwise noted