blue laser

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blue laser

[¦blü ¦lā·zər]
(optics)
A laser that emits bluish-purple light efficiently at room temperature from a semiconductor diode based on multiple quantum wells of III-V nitrides such as indium gallium nitride.

blue laser

A semiconductor laser that emits light in the 400-450 nm range. Although it was very difficult developing blue lasers, which emit smaller wavelengths than other colors, blue lasers became commercially available in 2001. Blue diode lasers allow for smaller pits to be used in optical discs (CD-ROMs use 780 nm pits; DVDs are 630 nm).

Blue light-emitting diodes (LEDs), a related technology, were also difficult to manufacture, but became practical and widely used after the turn of the century. See Blu-ray and UDO.
References in periodicals archive ?
o DVD Players, DVD Recorders, and Blue Laser Disc Players/Recorders
Worldwide Blue Laser Disc Player Unit Shipments by Region, 2006-2013 (Units in Thousands)
Blu-ray (Blu-ray Disc or BD) is a leading standard in the market for next-generation, high-definition optical players, which is based on blue laser disc technology.
July 12 /PRNewswire/ -- Paced by anticipated sales of blue laser players, game consoles, PC drives, and related media, the blue laser disc technology market is expected to exceed $28 billion in sales in 2010, according to Santa Clara Consulting Group (SCCG).
The MDS 5300 is available with blue laser disc recorders, increased capacity, higher throughput, and the Rimage Publisher 7.
The blue laser disc offers familiar disc-type benefits, including split-second random access, no physical head contact during record/playback, and cost efficiency associated with the media.
Surpassing existing optical media technologies several times over, a 200GB blue laser disc would double the capacity of TDK's existing 100GB Blu-ray prototype.
264 decoder and royalties making up the majority of the cost, the initial estimates for the bill of materials for blue laser disc players is over $400.
Blu-ray is the leading standard in the market for next-generation, high-definition optical players, based on blue laser disc technology.
The company will provide show attendees with a first-hand look at its prototype blue laser disc for Sony's "Professional Disc" systems.
Marking one of the most significant product introductions in the company's history, TDK will also showcase its groundbreaking prototype blue laser disc for Sony's "Professional Disc" Systems.
TDK has achieved early success in developing the write-once type of blue laser disc, the standard for which is expected to be determined in the near future, and TDK has offered proposals for its technical specifications and others.