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Wednesday, March 14, 2007
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New Laser Diode Offers 6x Recording For Dual-layer Blu-Ray and HD DVD
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Sharp will begin production of a High-Power Blue-Violet Laser Diode that achieves a power output of 210 mW. The device will enable high-speed 6X recording on dual-layer Blu-ray Discs (BD) and HD-DVDs.
The diode (GH04P21A2G) makes full use of crystal growth technology developed for infrared, red, and blue-violet low-power laser diodes.
The supported power output of 210 mW makes possible high-speed 6X recording on dual-layer Blu-ray Discs (BD) and HD-DVDs. In addition to a newly developed laser chip with a proprietary facet structure, the device also features a long service life of 10,000 hours.
Sharp will ship the first samples of the new diode on April 2nd, priced at 50,000 yen. Mass production is slated to start in June.
Since beginning mass production of the industry?s first infrared laser diode for use in CD players in 1982, Sharp has been an industry leader in this field. Now, based on proprietary technologies and know-how nurtured over long years of involvement in this area, Sharp has succeeded in moving high-power blue-violet laser diodes, the key device in next-generation DVD recorders, into volume production.
The japanese company is also working on new laser diode prototypes that are expected to further speed-up the dual-layer recording speed of next generation media. The next product aims at a maximum output of 350mW that will support 8-12X recording in two layers. Note that 8x recording on two-layers requires a power of 230-280mW. The 12x burning speed is the physical limit of recording in the next-generation media. These new developments are expected to be available during 2008 and 2009. |
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