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Home » Ushio introduces new single-mode 670 nm red laser diodes

Ushio introduces new single-mode 670 nm red laser diodes

Ushio, Inc. has begun the mass production of HL67191MG and HL67192MG, offering two new red laser diodes (LDs) for operation at the 670 nm wavelength. Providing an optical output power of 15 mW (CW) and 30 mW (pulsed), these single-mode LDs deliver high-temperature performance (up to 70°C) within a compact φ5.6 mm can package. Both LDs achieve a low operating current of 30 mA at 25°C (15 mW in CW operation) and feature built-in monitoring photodiodes.

Despite maintaining Ushio’s trademark high-quality, these new red laser diodes offer a number of improvements over some existing models. In keeping with Ushio’s habit of providing customisation options, engineers gain more freedom to fit the LDs into their preferred electrical circuit structure, with the added possibility to feature an extra pin-out for the new models.

Ushio’s previously existing 670 nm laser diodes (HL6714G; HL6748MG; HL6756MG) laser diode are able to withstand ambient temperatures of up to 60°C. Now, with the release of the two new models, an additional 10°C margin brings a new level of durability to Ushio’s laser line-up. Not only does this allow the lasers to remain fully operational in hotter environments, but they remain unaffected in situations which would previously contribute to the premature failure of the LDs. This feature increases the suitability of these lasers to be implemented into devices which do not feature an active cooling element.

These qualities combine to result in a pair of high-reliability, cost-efficient emitters which are ideal for battery-powered sensing and precise measurement equipment.

HL67191MG and HL67192MG red laser diode specifications

  • Optical output power: 15 mW (CW), 30 mW (pulse)
  • Visible lasing: 670 nm
  • Operating temperature: 70°C max.
  • Single transverse mode
  • TE mode oscillation
  • Small package: φ5.6 mm can


  • Barcode reading
  • Measurement
  • Sensing


  • Ushio standard MG (TO-56) package; two internal circuits available

Product image and internal circuit layout of HL67191MG and HL67192MG

Typical characteristic curve

670 nm red laser diode typical characteristic curve


Contact Ushio Europe to place your red laser diode orders

Clients located in the EMEA region can receive more information about HL67191MG or HL67192MG by contacting Ushio Europe Sales Director Ardan Fuessmann at, or by filling in the form on the Ushio Europe contact page.

Download HL67191MG and HL67192MG datasheets

HL67191MG datasheet

HL67192MG datasheet

Other recent news from Ushio’s SSL team

Ushio’s Epitex D-Series SWIR LEDs now up to four times more powerful (July 2020)

Ushio unveils 660 nm Single-Mode High-Power Red Laser Diode (January 2020)

659 nm Biomedical Red Laser Diode Reaches Highest Power Ever (October 2019)

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