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Leading Japanese lighting solutions experts, Ushio Inc. has announced two new red laser diodes, HL67191MG and HL67192MG, for operation at the 670nm wavelength. Providing an optical output power of 15mW (CW) and 30mW (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 (15mW 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.

Specifications of HL67191MG and HL67192MG Red Laser Diodes:

• 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

Applications

• Barcode reading
• Measurement
• Sensing

Packaging

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

Click here to know more about the HL67191MG and HL67192MG red laser diodes.