700mW red laser diodes target laser TV & projection
In news that will be of interest for those seeking higher power output from ever smaller laser diode packages, Oclaro’s high power visible wavelength HL63193MG laser diode is now in mass production. Offering 700mW optical output power at a typical centre lasing wavelength of 638nm, the multi-transverse mode laser diode features TM mode oscillation in a 5.6mm diameter TO package.
Further features include an operating temperature up to 40°C, typical operating voltage of 2.2V, LD reverse voltage of 2V with a typical threshold current of 200mA, and an operating current of 820mA. The typical beam divergence parallel to the junction is 9°, perpendicular to the junction is 35°.
The HL63193MG offers a high wall-plug efficiency rate of 38% which reduces both its electrical power consumption and the amount of heat that has to be removed from the package, allowing for a more compact and integrated design. High wall-plug efficiency, particularly for high-power lasers, is critical as it not only cuts down the electricity bill but also reduces the demands on electrical installations and on the cooling system, resulting in a reduction of the size of the laser system.
“The march toward higher and higher power diode lasers shows no signs of slowing down yet since high power red laser diodes remain critical to achieve the vivid colour, brightness and image quality required for laser TV and laser display applications. This Oclaro 700mW red laser diode enables overall output power to be maximised without increasing the number of components inside the projector,” says Tony Pope, M.D., the Optoelectronics Company.
RoHS compliant, the Oclaro HL63193MG is currently in full, volume production as demand increases.
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