Monday, December 22, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Samsung Introduces SE790C Curved Monitor
Chinese Motion-sensing VR Glasses Coming On Kickstarter
Kodak Returns To CES With Consumer Product Line
North Korea Suggests Joint Inverstigation With U.S. Over Sony Hacking
T-Mobile to Pay $90 Million To Settle Case With FCC
New Trojan Targetted Banks Wordlwide
FBI Confirms North Korea Was Behind Sony Hack
Apple Responds To BBC's Allegations Over Working Conditions In Chinese Factory
Active Discussions
Digital Audio Extraction and Plextools
Will there be any trade in scheme for the coming PSP Go?
Hello, Glad to be Aboard!!!
Best optical drive for ripping CD's? My LG 4163B is mediocre.
Hi All!
cdrw trouble
CDR for car Sat Nav
DVD/DL for Optiarc 7191S at 8X
 Home > News > General Computing > Panason...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, May 31, 2005
Panasonic Develops VCSEL Laser with 12Gbps Data Transmission Rate


Panasonic today announced the development of the 850 nm AlGaAs/GaAs VCSEL (Vertical Cavity Surface Emitting Laser) capable of high speed 12.5 Gbps modulation at low operating current of 8 mA.

This laser will be used for a low-cost optical communication such as plastic fiber communication and spatial light transmission.

For high-speed operation, it is essential to reduce the parasitic capacitance in the laser. The developedVCSEL has Panasonic's original planarized structure using BCB (benzocyclobutene) resin with low dielectric constant formed around the light emitting post structure. This structure hugely reduces the parasitic capacitance to less than one third of the conventional value from 0.7 pF to 0.2 pF. This allows doubling the modulation bandwidth previously limited by the parasitic capacitance, realizing the world's highest data transmission rate of 12.5Gbps with 12 GHz relaxation oscillation frequency.



In addition, the optimization of the device structure employing current confinement by selective oxidation has realized a low threshold current of 1 mA, a high slope efficiency of 1.1 W/A that is almost three times higher than the conventional value, according to the company. This has resulted in a low operating current of 8mA for 12.5Gbps modulation.

Panasonic aims to begin shipping the two types of surface emitting lasers (2.5 Gbps and 12.5 Gbps) in early 2006. Applications for forty Japanese and nine international patents have been filed. These research and development results have been presented at Conference on Lasers and Electro-Optics (CLEO) 2005, held in Baltimore, U.S. from May 22 to 27, 2005.


Previous
Next
PDA phones and smartphones come to the fore at Computex 2005        All News        New ITU Standard Delivers 10x ADSL Speeds
Security Flaw in Yahoo Music Beta     General Computing News      New ITU Standard Delivers 10x ADSL Speeds

Get RSS feed Easy Print E-Mail this Message

Related News
Panasonic Expands Toughbook H2 Battery Recall in The United States
Panasonic Raises Profit Outlook
Panasonic AX800 4K ULTRA HD TVs Update Adds Compatibility With Netflix 4K Streaming
Panasonic Introduces Rugged 7-inch Android Tablet
Panasonic to Start Licensing Unified IP Core for HD-PLC
Panasonic to Offload Sanyo's North America TV Business
Panasonic Develops 85-inch 4k Touch Screen, Showcases New HEVC LSI
Panasonic Commercializes Pin-Shaped Lithium Ion Battery For Wearables
Panasonic To Close DVD-player Factory In Slovakia
Panasonic and Leica Expand Partnership Agreement
Panasonic Reveals The Lumix DMC-LX100, Lumix DMC-GM5 Cameras And the DMC-CM1 Smartphone
Panasonic Showcases Optimized Workflow at IBC 2014

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .