Monday, August 31, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
NVIDIA GRID 2.0 Launches
New LG Luxurious Urbane Smartwatch To Appear at IFA
Alienware Brings Liquid Cooling and Dynamic Overclocking to Holiday Lineup
Razer Launches Wildcat Xbox One Controller And Upgraded Nabu Smartband
Workstation Market Shippments Rebound In Q2
Google Will Help You Find Your Plumber
IFA 2015: What We Know So Far
Acer Liquid Z410 And Liquid Jade Z Phones Released
Active Discussions
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
 Home > News > Optical Storage > Toshiba...
Last 7 Days News : SU MO TU WE TH FR SA All News

Thursday, October 02, 2003
Toshiba progress on Blue-laser


Toshiba will demonstrate its blue-laser-based storage technology at Tokyo's giant Ceatec exhibition held at Makuhari Messe, Chiba prefecture, from October 7-11.

The company will show a prototype blue-laser diode for optical disc systems. It is expected to hit the market around 2006. The new technology is several times more powerful than current commercial models, and has what Toshiba claims is the lowest noise of any such laser diode yet developed.

Lasers are used in optical disc systems to read and write information to the disc. The wavelength of the light produced by the laser is one of the main factors in determining the amount of data that can be stored on a disc. The shorter the wavelength, the smaller the light spot made on the disc surface and so less space is required to store one bit of information and more can be stored on a disc.

Almost all current optical disc systems, including CD and DVD, use lasers that emit light in the red or infrared spectrum. The CD system holds around 650MB of data and uses a 780-nanometer wavelength laser while the 4.7GB DVD format uses a laser with a wavelength of around 640 nanometers.

As storage technology moves onward, manufacturers are working with blue and blue-violet laser systems. Both Sony's Blu-ray system and Toshiba and NEC's proposed Advanced Optical Disc system use lasers with a wavelength around 405 nanometers, achieving storage capacities of between 23GB and 36GB per disc.

Toshiba's new laser has a similar wavelength, so it won't help improve on data density – but its high output power and low noise will enable reading and writing to take place at higher speed than the basic version of the systems. In current CD and DVD systems, more-powerful lasers have helped engineers do exactly the same thing, so higher speed drives, such as 4x or 12x or 24x models, are now available.

Main Specifications

Max. Optical Output: 200mW (Continuos wave mode at 25 degrees C)
Relative Intensity Noise: -132 dB/Hz (at 3mW)
Laser Wavelength: 409 nanometer
Threshold Current: 35 mA
Operation Current: 164 mA
Beam Angle (parallel): 12.4 degree
Beam Angle (perpendicular): 25.8 degree
Max. Operational Case Temperature: 100 degrees C

Toshiba expects faster versions of blue laser systems will be on the market around 2006, said Makoto Yasuda, a spokesman for Toshiba.


Previous
Next
Toshiba Singapore has announced the addition of two new Portégé models to its range of ultraportables family        All News        Toshiba Singapore has announced the addition of two new Portégé models to its range of ultraportables family
DesignTechnica reviews Plextor PX-708A     Optical Storage News      DesignTechnica reviews Plextor PX-708A

Get RSS feed Easy Print E-Mail this Message

Related News
Toshiba Launches Wireless Power Receiver IC for Quick Charging Mobile Devices
Toshiba Unveils Three NVME Solid State Drive Families
Toshiba Develops First 16-die Stacked NAND Flash Memory with TSV Technology
Toshiba Announces Third Generation of Enterprise SAS SSDs, Starts Production Of 3D NAND
Toshiba Expands Line-up of ARM Cortex -M-based Microcontrollers
Toshiba CEO Resigns Following Accounting Scandal
Toshiba Inflated Profits
Toshiba Moves To New Process Technologies for Microcontrollers and Wireless Communication ICs
Toshiba Demonstrates New Technology For 3D Hard Disks
Toshiba Announces 6TB Enterprise Cloud HDD
Toshiba Portege WT20 Business Tablet Now Available
Toshiba Introduces New Satellite Series Laptops, Fusion And Radius 2-In-1 PCs

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .