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Digital D-type with Isolator

Minimize your back-end engineering resources with the D-Type laser’s key integrated elements: an integrated laser line filter, optical isolator, thermistor/TEC, ESD protection, and a linear tracking photodiode.

Designed to replace expensive distributed feedback lasers (DFB), distributed brag reflectors (DBR) fiber, and external cavity lasers, the D-Type laser architecture contains our proprietary single-mode stabilization with high output powers (ca. 35 mW - 150 mW) and optional step-down power down by the user. 

Ideal for Raman imaging, confocal applications, process Raman, metrology, interferometry, atomic clocks, and remote sensing. 

Choose a λ (nm)
Choose a Min. Power (mW)

Key Features

  • High Power Single Frequency Output (SLM)
  • Ultra-Narrow Spectral Bandwidth
  • Circularized & Collimated Output Beam
  • Gaussian TEM00 Spatial Mode
  • Integral Laser Line Filter1
  • Optical Isolator2
  • SMSR 70 dB w/ laser line filter (40 dB without)
  • Integral Thermistor & TEC
  • Integral ESD Protection
  • Integral Linear Tracking Photodiode
  • Integrated isolator

Custom Capabilities

  • Custom wavelengths available upon request
  • Adjustable beam expander to set beam diameter at specified distances
  • Multi-mode Achro-fiber port available
  • Optical isolator available for 633nm, 638nm, 780nm, 785nm in standard D-Type module
  • Optical isolator available for 976nm and 1064nm in larger D-Type module


Wavelength Tolerance

+/- 0.5 nm

Spectral Linewidth FWHM


SMSR w/ Integral Laser Line Filter


Power Stability

+/- 0.5% to 1% typical

Wavelength Stability Range

15°C to 45°C

Power Consumption

2W typical, 5W max

Linear Tracking Photodiode
(Optional, Internal TIA Output)

1V Max

Polarization Extinction Ratio (PER)

>17 dB (20 dB typical)

Polarization Orientation

Perpendicular to the plane of base plate mounting plane. 

Spatial Profile


Beam Quality (M², 1/e²)


Beam Ellipticity


Beam Diameter

4.0mm (+/-0.4mm) w/ beam expander

~0.7mm w/o beam expander

Beam Divergence

<1 mrad w/beam expander

~2 mrad w/o beam expander

Cold Start to <1 Wavenumber

10 Seconds

Warm Start to <1 Wavenumber

1 Second

Warm Start to <0.1 Wavenumber

3 Seconds


This laser package is designed for OEM Integration and is ideal for:

  • High Resolution Raman Spectroscopy
    • Handheld Raman Spectroscopy
    • Confocal Microscopy
    • Raman
    • Imaging
    • Portable Raman
    • Process Raman
  • Metrology & Interferometry
  • Remote Sensing