29 Sep 2010
Giant Japanese company achieves latest milestone with pseudo-continuous emission of laser at a 50 per cent duty cycle.
Sony is to begin mass production of two new high-power violet diode lasers, including a 405 nm emitter capable of delivering a 400 mW output.
The “BDXL” lasers, designed primarily for Blu-ray Disc (BD) recording applications for both PCs and standalone high-definition video players, will be manufactured at the company’s Shiroishi Semiconductor subsidiary, which is focused on semiconductor device production.
The company has released two different lasers, one delivering a maximum output of 350 mW and the other 400 mW. Although the output power is the highest achieved by the company with a production-worthy emitter operating in the blue-violet region, it is lower than some of the similar lasers produced by Nichia Corporation. However, the Sony laser output cannot be maintained at that level continuously, so fast switching at a 50 per cent duty cycle ensures that the devices work in pseudo-CW form.
While the 400 mW laser is housed in a conventional 5.6 mm package for BD recorder applications, the 350 mW laser is much smaller, fitting inside a 3.8 mm package and designed for use in PC applications where a slimmer profile is required.
More Optics.org - Sony reaches 400mW with violet diode laser
Giant Japanese company achieves latest milestone with pseudo-continuous emission of laser at a 50 per cent duty cycle.
Sony is to begin mass production of two new high-power violet diode lasers, including a 405 nm emitter capable of delivering a 400 mW output.
The “BDXL” lasers, designed primarily for Blu-ray Disc (BD) recording applications for both PCs and standalone high-definition video players, will be manufactured at the company’s Shiroishi Semiconductor subsidiary, which is focused on semiconductor device production.
The company has released two different lasers, one delivering a maximum output of 350 mW and the other 400 mW. Although the output power is the highest achieved by the company with a production-worthy emitter operating in the blue-violet region, it is lower than some of the similar lasers produced by Nichia Corporation. However, the Sony laser output cannot be maintained at that level continuously, so fast switching at a 50 per cent duty cycle ensures that the devices work in pseudo-CW form.
While the 400 mW laser is housed in a conventional 5.6 mm package for BD recorder applications, the 350 mW laser is much smaller, fitting inside a 3.8 mm package and designed for use in PC applications where a slimmer profile is required.
More Optics.org - Sony reaches 400mW with violet diode laser
