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Features / Accessories / Documents

Optical Power Meter
8250A

Bench-type optical power meter suitable for R&D and production of optical disks

The 8250A is a bench-type optical power meter, which is most suitable for R&D and production of LDs, optical pickups, and drives for optical disks.
It has 0.001 dB resolution and 5½-digit display and is also quipped with GPIB and USB interfaces as standard, allowing easy automated system establishment.
Nine kinds of optical sensors with various purpose (general-purpose, blue-violet, high-power, three-wavelength) and different shapes (thin-type, cylindrical-type) are available. The three-wavelength optical sensors 82314B, 82324B and 82314BW are capable of measuring 405 nm, 650 nm, 780 nm wavelength ranges. The blue-violet optical sensors 82312B and 82322B have realized a flat wavelength sensitivity characteristic and low dependency on an angle of incidence in the 405 nm range. The high-power optical sensors 82313B and 82323B enable high-power measurement of up to 200 mW.
Furthermore, the optical sensors for the TQ8210/TQ8215 series are also usable.

Features

Ideal for making automated systems
The 8250A is an optical power meter optimal for building up automated production lines of Blu-ray Disc, DVD, CD and other optical pickups.
It is equipped with USB and GPIB interfaces as standard, which allows easy establishment of automated systems.
In addition, the latest USB driver is available from our website to make your operation easier.
The GPIB commands are compatible with those of the former model TQ8215. 
 

High-resolution measurement
By adopting low-noise design and a high-resolution A/D converter, The 8250A achieves measurement with a high resolution of 0.001 dB that never overlooks subtle change.
 

Nine types of optical sensors to meet various applications

  Shape Part Number Wavelength Range Calibration
Wavelength
Power Range Light Receiving Area
General-purpose Thin  82311B  390 to 1100 nm 780 nm 1 nW to 50 mW Approx. 9.5 mm × 9.5 mm
Cylinder  82321B  390 to 1100 nm 780 nm 1 nW to 50 mW Approx. 8.5 mmφ
High-power Thin  82313B  390 to 1100 nm 650 nm 10 nW to 200 mW Approx. 8.5 mmφ
Cylinder  82323B  390 to 1100 nm 650 nm 10 nW to 200 mW Approx. 8.5 mmφ
Blue-violet Thin  82312B  390 to 450 nm 405 nm 10 nW to 100 mW Approx. 10 mm×10 mm
Cylinder  82322B  390 to 450 nm 405 nm 10 nW to 100 mW Approx. 8.5 mmφ
Three-wavelength Thin  82314B  390 to 900 nm 405 nm 10 nW to 100 mW Approx. 10 mm×10 mm
Thin and large  82314BW  390 to 900 nm 405 nm 10 nW to 100 mW Approx. 18 mm×18 mm
Cylinder  82324B  390 to 900 nm 405 nm 10 nW to 100 mW Approx. 8.5 mmφ

*In addition to the calibrated wavelength indicated, calibration with additional wavelengths (405, 650, 780 nm) is possible as an option.
*The wavelenght sensitivity of the 82311 and the 82321 is corrected by using the typical values. As for the 82311, correction by measurement is possible as an option.

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