Product category:
Monitors and peripherals
News Release from: Yokogawa Europe - Test and Measurement | Subject: TB200 optical power meter
Edited by the Laboratorytalk Editorial
Team on 05 September 2005
Meter supports future optical disk
standards
Yokogawa's TB200 optical power meter supports blue, red and near-infrared measurements, allowing a single unit to be used for measurements on CDs, DVDs and next-generation optical disks.
Yokogawa claims that its TB200 instrument is the world's first optical power meter to support blue, red and near-infrared measurements, allowing a single unit to be used for measurements on CDs, DVDs and next-generation optical disks, such as Blu-ray and HD DVD and related developments Devices such as next-generation optical disk recorders that use blue lasers (with a shorter wavelength than the red laser for DVDs) are already on the market, and optical disks of this type are now becoming widespread
This article was originally published on Laboratorytalk on 2 Nov 2000 at 8.00am (UK)
Related stories
Data-acquisition system offers high channel count
The new MV200 from Yokogawa, with its large (10.4 inch) colour TFT screen, is a high-channel-count data-acquisition system that is equally suited to mobile or benchtop use.
Compact portable data loger
The MV100 MobileCorder from Yokogawa Martron is a compact portable data logger equipped with a large colour screen for the instant readout and monitoring of online data
Since laser power is used to read and write to these optical disks, it is important to be able to measure the laser power magnitude during the optical disk development and production processes.
According to Yokogawa, as next-generation optical disks proliferate, there will be increasing demand for equipment having just one pick-up that can support all three disk generations, that is, next-generation optical disks, DVDs, and CDs.
And, as next-generation optical disk equipment enters production, there is a need for optical power meters with features such as removable sensor units and remote-control capabilities.
Further reading
More oscilloscope for your money
Yokogawa claims a price/performance breakthrough with the introduction of a new two-channel instrument in the SignalExplorer family of compact, high-performance digital oscilloscopes
Wideband digital power analyser
Yokogawa has, for the first time, packaged two high-accuracy 3-phase power meters into a benchtop enclosure to create its new WT 1600 wideband digital power analyser
The TB200 optical power meter has been developed in response to these market trends and user needs, says the company.
Key features of the new instrument include a detachable optical sensor module for use on production lines; a large diameter light sensor that is ideal for picking up high NA (numerical aperture) light; and a USB interface to ease remote control and to transfer the measurement results to PC.
The TB200 has flat wavelength sensitivity characteristics for the three wavelengths - 405nm (blue), 660nm (red) and 785nm (near infrared) - used with next-generation optical disks, DVDs, and CDs.
Sensitivity is controlled to approximately 1% within +/-5nm of the centre wavelength in each band, without the need to set the measurement wavelength.
Since the sensor of the TB200 has an 18-mm wide photo-detection area, stable measurement even at high NA (0.85) is possible without the need for fine adjustment of the positions of the lens and sensor.
The instrument also carries out anti-reflection processing to eliminate the effects of multiple reflections.
The TB200 is suitable for to use in conventional research and development and on production lines.
It is designed so that the cover outside the sensor can be removed to allow the optical sensor module alone to be attached to the production equipment.
This design gives more flexibility in installation, and frees up space for the production equipment.
Through the USB interface, all TB200 functions can be remote-controlled at the high speeds essential for the manufacturing environment.
• Yokogawa Europe - Test and Measurement: contact details and other news
• Email this article to a colleague
• Register for the free Laboratorytalk email newsletter
• Laboratorytalk Home Page
Search the Pro-Talk network of sites
