Soraa demonstrates 4 watt blue laser diode for bulb-free projection displays

Company to present results at Photonics West conference in San Francisco Jan 26, 2011


Soraa Inc., (formerly Kaai, Inc.), a rapidly expanding clean-tech semiconductor company and world leader in commercialization of green and blue laser diodes (LDs), announced today the demonstration of high power 4 watt blue laser diodes at 450 nm, 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 theater, and cinema. The company will present its latest results at the Photonics West conference in San Francisco, CA on January 26, 2011.

Additionally, Soraa will present results of 750 mW single mode blue laser diodes, 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 LDs. [SEE PRESS RELEASE JAN 5, 2011.]

Soraa's LDs are based on InGaN semiconductor technology and are fabricated on innovative nonpolar and semipolar 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, defense pointers and illuminators, biomedical instrumentation and therapeutics, and industrial imaging applications.


Soraa is a rapidly expanding clean-tech company commercializing disruptive, energy saving solutions. Leveraging fundamental semiconductor materials advances, Soraa was founded in 2008 by world renowned semiconductor pioneers Professors Shuji Nakamura, Steven Denbaars and James Speck of University of California, Santa Barbara. The management team is led by Eric Kim, former executive of Intel and Samsung, and is comprised of commercial laser industry veterans. Soraa is funded by Khosla Ventures and NEA and operates vertically integrated fabrication facilities in California's Silicon Valley and Santa Barbara. To learn more about Soraa, visit, or contact the company at or (510) 456-2200.


Andy Beck