News Article
Soraa Unveils 4 Watt Blue Laser Diodes
The compact laser diodes will be used in bulb-free projection displays for use in boardroom presentations, in education, home theatres, and in cinemas.
Soraa, a manufacturer of green and blue laser diodes (LDs), has unveiled a high power 4 watt blue laser diode.
Operating at 450 nm, the company says this is the highest power blue laser reported to date from a monolithic chip.
These devices are designed to enable >500 lumen, bulb-free projection displays with dramatically reduced size, weight, and power consumption compared to conventional bulb-based projectors used in venues such as boardrooms, education, home theatre, and cinema. The company presented its latest results at the Photonics West conference in San Francisco, California on January 26, 2011.
Soraa also presented results of 750 mW single mode blue laser diodes, which the company claims is the highest single mode power reported to date. These laser diodes operate with single spatial mode and multi spectral mode and are designed for smaller format display applications such as micro projectors and pico projectors.
The devices can be directly modulated at high speeds required for high resolution displays with minimal speckle. Soraa’s LDs are designed to be compatible with all available display generating technologies including LCOS, scanning MEMS mirrors, DLP, and other diffractive approaches. These blue LD devices complement Soraa’s previously announced green LD which it unveiled on 5 January, 2011.
Soraa’s LDs are based on InGaN semiconductor technology and are fabricated on innovative non-polar and semi-polar GaN substrates. Soraa’s direct diode green and blue lasers offer improvements in performance, size, weight, and cost over conventional gas or solid state lasers for consumer projection displays, defence pointers and illuminators, biomedical instrumentation and therapeutics, and industrial imaging applications.
