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Power Measurement Detectors
Jan 2010
Gigahertz-Optik Inc.Request Info
NEWBURYPORT, Mass., Jan. 6, 2010 – Gigahertz-Optik Inc. has introduced the ISD-1.6-Si-1 and the ISD-1.6-Si-FC-1 radiant power measurement detectors featuring a compact 16-mm-diameter integrating sphere for small-size beam emitter-type light sources with divergent beam light emittance, such as laser diode dyes and optical fibers.

Gigahertz-Optik_MiniSphereP.jpgThe detectors measure 43.5 × 25 × 17.5 mm, and their primary function is to fit inside existing equipment and tight enclosed spaces to collect the entire light beam and measure beam power through their 3-mm measurement port.

The silicon photodiode detector offers a wide spectral range from 400 to 1100 nm and a typical absolute sensitivity of 200 µA/W at 630 nm, with 500-mW maximum power. The detector head is traceably calibrated and certified to international standards, and the detectors can be used for power measurements with all of the company’s optometers.

The ISD-1.6-Si-FC-1 model includes an FC connector to allow connection of a spectrometer in cases that require spectral data. The FC connector is mounted opposite the measurement port to collect the maximum amount of light signal for high-resolution spectrometers with limited sensitivity.

A near-infrared version with an InGaAs photodiode to cover the 800- to 1700-nm spectral range is also available.

For more information, visit:  

Gigahertz-Optik Inc.
5 Perry Way
Newburyport, MA 01950
Phone: (978) 462-1818
Fax: (978) 462-3677


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FC connector
The fiber optic connector standard for Nippon Telephone & Telegraph (NTT) installations, developed with Nippon Electric Co. (NEC).
integrating sphere
A hollow sphere coated internally with a white diffusing material and provided with openings for incident beam, specimen and detector used for measuring the diffuse reflectance or transmittance of objects.  
optical filters
An optical element that blocks or transmits a selected wavelength of light. Optical filters can either be absorption filters or interference filters. Absorption filters absorb any unwanted wavelengths while the interference filter will use the effects of constructive and destructive superposition to transmit only the selected wavelength.
The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
silicon photodiode
Semiconductor PN or PIN junction that uses absorbed photon energy in the range of 1.06 to 1.03 eV to excite carriers from one energy level to a higher state. The resultant change in the charge across the junction is monitored as a current in the external photodiode circuit.
A kind of spectrograph in which some form of detector, other than a photographic film, is used to measure the distribution of radiation in a particular wavelength region.  
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