Fujitsu Ltd. and Mitsui & Co. Ltd., both in Tokyo, have established QD Laser Inc., an optical device venture. Leveraging capital from both companies and quantum dot laser technology from Fujitsu, the newly formed company will offer quantum dot lasers to the telecommunications light source market. Quantum dot lasers feature temperature-independent operation, low power consumption, long-distance transmission and high speed. The companies anticipate that the lasers will become a core technology for telecommunications.