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Open Beam Butterfly (Single-Mode)

The butterfly package offers more pin configurations than the TO-Can and tends to be easier for board mounting applications. TE cooling is external, and internal TE cooling is available upon request.

The single-mode packaged product line comes standard with a circularized output beam, internal photodiode, thermistor and ESD protection. Lasing wavelength can be accurately specified and repeatedly manufactured to within +/-0.1 nm upon request.

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

Key Features

  • High-Power Single-Spatial-Mode, Single-Frequency Output
  • Ultra-Narrow Spectral Linewidth (< 100 kHz)
  • Stabilized Output Spectrum (< 0.007 nm/°C)
  • Excellent Beam Quality (M² < 1.2)
  • Integral ESD Protection & Thermistor
  • Integral Laser Line Filter
  • SMSR 70 dB w/ laser line filter (40 dB without)

Custom Capabilities

  • Custom wavelengths available upon request.
  • Integral Optical Isolator Available
  • External TEC (e.g. No TEC inside of package optional)


Wavelength Tolerance

+/- 0.5 nm

Spectral Linewidth (Δλ)

~100kHz Instantaneous

Wavelength Stability Range

15 °C – 45 °C


35 – 45 dB

SMSR w/ integral laser line filter

70 dB. typical

Power Stability

1% typical


>17 dB, 20 dB Typical

Spatial Profile


Beam Exit Angle

< 3 degrees

Beam Quality (M2/1/e2)

< 1.2

Beam Ellipticity

< 1:5:1

Beam Divergence

~ 2 mrad


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

  • High Resolution Raman Spectroscopy
    • Confocal Microscopy
    • Raman Imaging
    • Portable Raman
    • Process Raman
  • Direct-diode Frequency Doubling
  • Fiber Laser Seeding
  • Metrology & Interferometry
  • Remote Sensing