Single Frequency CW DPSS 442 nm Laser BRaMMS-Duetto-442

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Single Frequency CW DPSS 442 nm Laser BRaMMS-Duetto-442

Single Frequency CW "blue" Duetto-442 diode pumped solid state lasers provide users unrivaled beam quality and reliability with optical output powers of 10-150 mW. Based on a highly reliable frequency doubled laser diode the Duetto-442 lasers have genuine single frequency and wavelength stability. The lasers emit an optical beam in single-spatial-mode (M ² <1.1), and allow a minimum focusing and uniform illumination of the sample.

Wavelength, nm 442
Beam divergence, mrad <1, diffraction limited
Beam Pointing Stability, μrad/°C ≤ 5
Longitudinal Mode Structure SLM
Line Width, MHz < 0.5
Line Spectral Position Stability, MHz (pm) +/- 50 (+/-0.2) within 4 hrs of CW operation
Coherence Length, m > 100
Mode Hops Free Fine Tuning Range, GHz 25 – 30 (optional)
Polarization Linear, Vertical; ≥100:1
Output Power Noise, % ≤ 0.1rms, ≤ 1p-p (10Hz – 10MHz)
Output Power Stability, % ≤2, within any 4 hours of CW operation
Working Temperatures, °C 15 – 35, conductive cooling via mounting interface
Storage Temperatures, °C -20 to 75
Humidity, % 5 -95, non-condensing
Operating Voltage, VAC 90 to 240
Frequency, Hz 50-60


The patented BRaMMS technology provides new wavelengths previously unattainable by CW single frequency DPSS lasers in UV, visible and near IR. It utilizes the spectrum discriminatory feature of a Michelson interferometer setup within a spectral range preselected by Volume Bragg Grating. This suppresses all but one lasing longitudinal mode within a laser cavity, hence – Bragg Range Michelson Mode Selector (BRaMMS).
Due to significantly lower power consumption for any required output and the resulting simplified thermal management, the BRaMMS laser technology provides up to 10 times wider range of output power scalability from the smallest footprint.
This technology allows any wavelength within the spectrum range from IR (around 2000 nm) through deep UV (<200 nm) operating in the CW Single Frequency regime.
All of this provides an unprecedented range of application, from holographic art to large scale structural analysis, from pharmaceutical instrumentation to cuttin gedge particle trapping techniques, from semiconductor wafer micro - processing to wind turbine power generation and avionic technologies and many many more.

View FileBRaMMS Duetto 442_xxx data sheet    Size: (3.14 MB)
  • from 10 to 150 mW output power at 442 nm SLM
  • feedback locked Single Longitudinal Mode CW operation
  • mode hops and lock loss free
  • very low noise performance, < 0.1% rms
  • excellent beam quality from smallest footprint
  • lowest power consumption for given output
  • Holography
  • Thin film analysis
  • Bio-fluorescence
  • Particle metrology
  • Confocal microscopy
  • DNA sequencing
Name Output power, mWOutput Beam Diameter, TEM00, mmWarm up time, minPower Consumption, W Price Quantity

BRaMMs Duetto 442-0010


BRaMMs Duetto 442-0020


BRaMMs Duetto 442-0050


BRaMMs Duetto 442-0100


BRaMMs Duetto 442-0150