All SureLock™ Wavelength Stabilized Laser Diodes and Laser Modules incorporate the Coherent PowerLocker® VHG filter to provide single-frequency or narrowed linewidth spectral performance, stabilized temperature operating characteristics, and low power consumption – delivering affordable, portable, instrument quality performance for a diversity of applications.
SureLock lasers deliver superior optical stability and low power consumption – enabling affordable, portable, instrument-quality performance for a diversity of applications. They are available in a wide range of wavelengths, power levels, and form factors. Coherent can also custom-configure a wavelength-stabilized solution to meet your exact application requirements.
The VHG filter is a miniature ultra-narrowband Volume Holographic Grating which create an external cavity that locks the diode laser wavelength into a narrowed optical spectrum. This increases spectral brightness and delivers stabilized optical performance over extended temperature ranges, transforming standard diode lasers into single-frequency or spectrum-narrowed, instrument-quality lasers. The extremely short external cavity configuration results in better mode selection and a smaller footprint than Littrow or Littman cavity designs, while reducing the spectral bandwidth of a typical laser by an order of magnitude.
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