Lasers for Brillouin microscopy
Ultra-low noise, narrow linewidth DPSS lasers delivering the spectral purity needed to reveal weak and complex Brillouin scattering
Single frequency diode-pumped solid-state (DPSS) lasers from Skylark Lasers provide highly stable, low noise sources in the UV and NIR with ASE noise < – 80 dB, and passive linewidth < 13 kHz / 1 ms.
High optical power and outstanding spectral purity are critical for enhancing signal strength, especially in samples with weak or complex scattering characteristics. Skylark NX DPSS lasers are specifically engineered to deliver robust performance without the noise, instability, or alignment challenges commonly associated with amplified diode laser systems.
Low ASE noise
< - 80 dB
Clean beam
M² ≤ 1.2
Stable output
± 0.2 pm
Maintains ± 0.2 pm wavelength stability over 10s of hours, ensuring spectral integrity for precision applications.
Skylark Lasers outperform market leaders for Brillouin microscopy applications
Skylark NX lasers combine efficient high power with spectral purity from a low-loss, high conversion cavity design. Delivering ultra-stable output with a narrow linewidth, Skylark NX lasers at 780 nm and 785 nm provide a clean beam with low ASE noise < – 80 dB without filters or mode cleaning.
Low ASE noise
Inherently low ASE noise without additional suppression measures like filters, gratings, and gas cells.
Narrow linewidth
Reduces spectral broadening, leading to better signal resolution, SNR, and sharper peaks.
High power
Delivers efficient NIR light at 740.24 nm, with ample power margin for complex optical paths.
Ultra-stable output
Ultra-consistent wavelength output and power intensity to reduce measurement fluctuations.
DPSS lasers deliver the lowest noise and cleanest beams for Brillouin microscopy
Skylark NX lasers provide low ASE noise and clean beams for Brillouin microscopy and spectroscopy applications.
With inherently low noise and narrow linewidth, the lasers have the spectral purity required for precision-demanding Brillouin techniques:
- Brillouin microscopy
- Brillouin spectroscopy
- Stimulated Brillouin-scattering
- Raman-Brillouin hybrid techniques
Low noise DPSS lasers for Brillouin light scattering applications
Brillouin light scattering (BLS) microscopy is a non-invasive optical technique that probes the mechanical properties of materials by measuring frequency shifts in scattered light. As the signals are weak and highly sensitive, BLS demands lasers that deliver high performance.
Parameters such as linewidth, frequency stability, spectral purity, wavelength, and compatibility with Rayleigh suppression directly determine the clarity and reproducibility of Brillouin spectra. The Skylark 780 NX DPSS laser is engineered to meet these requirements, enabling accurate mapping of mechanical properties such as elasticity, viscosity, acoustic velocity, and density with minimal artefacts, less setup complexity, and higher confidence in results.
Ultra-narrow linewidth for high spectral resolution
With ≤ 300 kHz linewidth from a single frequency output, the Skylark 780 NX DPSS laser ensures high spectral resolution that helps separate Brillouin frequency shifts and linewidths. This precision reduces artefacts and data ambiguity, enabling you to quantify viscoelastic properties with greater confidence and fewer repeat measurements.
High spectral purity for resolving GHz-scale shifts
Resolving GHz-scale frequency shifts demands lasers with ultra-narrow linewidths and robust single frequency operation. The Skylark NX platform delivers outstanding spectral purity, enabling superior signal-to-noise ratio (SNR) and sharper resolution in Brillouin spectra. This directly translates to higher measurement accuracy for researchers and improved data quality in OEM instruments.
Low ASE noise for high signal-to-background ratio
The Skylark 780 NX achieves ASE suppression below - 80 dB and ≤ 0.3 % RMS power noise (10 Hz – 10 MHz). This clean spectral profile enables Brillouin peaks to stand out clearly above background, even in weakly scattering biological tissues. Users can reduce acquisition time, operate at lower power to protect samples, and spend less effort on data correction and post-processing.
Frequency stability for reproducible measurements
With wavelength stability within ± 0.2 pm and output power within ≤ 2 % over 10s of hours, keep Brillouin measurements consistent across long imaging sessions and multi-day studies. Benefit from fewer recalibrations, higher throughput, and reproducibility that enables confident comparison between samples, time points, and labs.
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