A pair of new single-chip dual-wavelength red/infrared laser diodes that offer high output characteristics in a compact size has been introduced by RS Components. Manufactured by Panasonic the devices are ideal for use in optical disk drives, barcode readers and many sensing-based applications such as laser distance sensors for industrial use, or flow cytometers in biomedical applications.
The laser diodes provide a single-chip solution, eliminating the need for multiple components, with both red and infrared lasers on board a small flat three-pin package.
Offering stable power output even under high temperatures, these new dual wavelength laser diodes are roughly 20 to 30 per cent more efficient than conventional laser diodes.
In addition, the devices also exhibit exceptional accuracy in laser beam spacing, leading to greater design-in flexibility.
The LNCT22PK01WW and LNCT28PF01WW are MOCVD (Metal-Organic Chemical Vapour Deposition) fabricated 660nm and 780nm band dual-wavelength devices that feature a multi-quantum-well structure that has been adapted to fit an open frame type package to reduce size and weight.
Key specifications of the laser diodes are: dual wavelengths of 661/661nm (typical) and 785/783nm (typical); output power of 280/300mW (pulse) for red and 380/380mW (pulse) for infrared; and an operating temperature range of –10 to +85°C for both devices.