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BTS2048-BS

Spectroradiometer for Blue Laser Radiation

High performance CCD spectroradiometer for measurement of lasers in the blue spectral range
High spectral resolution
Extremely fast measurements

BTS2048-BS CCD spectroradiometer for LASER radiation

The BTS2048-BS meets all the requirements of a high performance CCD spectroradiometer for measurement of laser diodes in the blue spectral range.

One of its unique features is its BiTec sensor, which combines a back-thinned CCD based spectroradiometer with a radiometric Si photodiode. This combination provides high linearity levels as well as extremely fast measurements. The fully linearized 2048 pixel CCD detector has a very wide dynamic range thanks to its integrating times that range from 2 µs to 4 s. This makes it possible to measure laser diodes over a wide intensity range. The optical grid arrangement limits the spectral measurement range to between 400 nm and 530 nm hence resulting in a very small optical bandwidth (0.3 nm). Si photodiodes exhibit exceptionally high linearity levels across their dynamic range. This makes the photodiode within the BiTec sensor ideal for additional linearization of the CCD (article on the BTS technology) The radiometric responsivity function of the photodiode may be used independently of the CCD enabling fast CW measurements even at low intensities. Any radiometric mismatch can be auto-corrected using spectral data from the CCD. Despite its compact dimensions (103 mm x 107 mm x 52 mm – LxWxH), the BTS2048-BS spectroradiometer has a remote-controlled filter wheel with two OD filters and a shutter for dark measurement.

Direct mounting instead of using a light guide

The BTS2048-BS spectroradiometer has a diffuser window and can therefore be used to measure the irradiance, spectrum and peak wavelength, without the need for any additional equipment. The diffuser window also enables the BTS2048-BS to be mounted directly onto accessories such as integrating spheres, radiance intensity measurement lenses, and goniometers in order to measure the radiant power, radiant intensity, and radiant intensity distribution.

User software and developer software

The standard S-BTS2048 user software has a customizable user interface and a large number of display and function modules which can be activated when configuring the BTS2048-BS with the respective accessory components from Gigahertz-Optik GmbH.

The S-SDK-BTS2048 developer software is recommended for integration of the BTS2048-BS in the user’s own software.

Calibration

One essential quality feature of photometric devices is their precise and traceable calibration. The BTS2048-BS is calibrated by Gigahertz-Optik’s calibration laboratory which has been accredited by DAkkS (D-K-15047-01-00) for the spectral responsivity and spectral irradiance in line with ISO/IEC 17025. The calibration also included the corresponding accessory components. Every device is delivered with its respective calibration certificate.