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Mitsubishi Electric was awarded the 51st Okochi Memorial Foundation Prize (Grand Production Prize) for "The development and production of high-power red lasers for recordable DVDs".
The destruction of the laser mirror has been an obstacle to the creation of high-power semiconductor lasers. Addressing this problem, Mitsubishi Electric made good use of an original window mirror structure and its processing technology and succeeded in mass-producing a high-power laser for 1st generation recordable DVD for the first time in the industry. Later, it developed a highly efficient optical waveguide structure, further increased output power by developing long cavity technology, and in succeeded in mass-producing a 250mW optical output laser for 16X speed recording, the fastest in the industry. As a result, Mitsubishi Electric's market share reached 80%, with production of about 6 million units monthly, predominantly 250mW lasers for maximum speed 16X recording.




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