Lasers for holography
Single frequency DPSS lasers for high resolution hologram production
Holography requires long coherence, long term output stability, and wavelength precision to achieve high-fidelity interference patterns and repeatable results. Skylark Lasers’ continuous-wave single-frequency DPSS sources are engineered for a range of industrial holography applications including diffractive optical elements (DOEs), holographic optical elements (HOEs), and anti-counterfeiting structures.
320 nm
up to 200 mW
Skylark 320
320 nm single frequency DPSS UV laser
640 nm
up to 1,000 mW
Skylark 640
640 nm single frequency DPSS VIS laser
Long coherence
> 100 m
Stable output
≤ 2.0%
≤ 0.3 % RMS noise and < 2.0 % intensity drift ensure uniform exposure and consistent diffraction efficiency across holographic elements.
Uniform beam
M² ≤ 1.1
Consistent wavelength
< 20 MHz
Minimal drift over 24 hours maintains precise fringe spacing and Bragg condition accuracy for reproducible holographic recording.
Ultra-stable single frequency DPSS lasers for holography, laser interferometry, and grating manufacturing
Single frequency CW DPSS lasers deliver the long coherence length, output stability, and beam quality essential for advanced holographic recording. At 320 nm, 349 nm, 640 nm, 780 nm, and 785 nm, Skylark DPSS lasers provide ultra-stable, narrow linewidth output with low ASE noise < –80 dB; ensuring clean, high contrast interference fringes and reproducible hologram quality without external mode filtering.
Holographic optical element (HOE) mastering and fabrication
Skylark UV DPSS lasers at 320 nm and 349 nm deliver the coherence, power, and wavelength precision required for high resolution holographic optical element (HOE) mastering.
Short UV wavelengths enable fine interference fringe spacing and high spatial frequency gratings, critical for AR/VR waveguides, diffractive beam combiners, and high efficiency holograms. Compared to 325 nm HeCd sources, they offer four times higher usable power, narrower linewidth, and solid-state reliability, producing superior grating uniformity and throughput for optical display and sensing applications.
Volume holographic gratings (VHGs) and volume Bragg gratings (VBGs)
Skylark UV DPSS lasers provide the phase stability and spectral precision needed for recording and testing volume gratings. UV wavelengths at 320 and 349 nm enable accurate, high density grating formation in photosensitive glass, polymer, and photopolymer materials, while NIR wavelengths at 780 nm and 785 nm can be used for characterisation, wavelength locking, and narrowband filter performance validation. The combination of long coherence length and minimal wavelength drift ensures precise Bragg matching, angular selectivity, and reproducible refractive-index modulation.
These properties make Skylark DPSS laser systems a robust solution for diode laser stabilisation, Raman spectroscopy filters, and high resolution optical metrology systems.
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