Showing results: 76 - 77 of 77 items found.
-
mks Ophir
Pulse Characterization Sensors provide the ability to see and measure the temporal characteristics of pulsed and CW laser beams. Ophir Fast Photodiode Detectors are designed to convert optical signals into electrical signals which are then measured with third-party instrumentation such as oscilloscopes and spectrum analyzers. Accessories are available to connect to IS6 integrating spheres or fiber optic cables. Attenuating filter accessories are also available to increase their dynamic range. Different models offer silicon, UV enhanced silicon and InGaAs PIN photodiodes, covering a combined spectral range of 193 nm to 1700 nm. Rise times range from 25 picoseconds to 3 nanoseconds. The fast rise times are achieved by an internal reverse bias voltage circuit. Power is supplied by internal batteries and/or an external power supply depending on the model. Detectors should be connected to a 50Ω impedance in order to maintain their nominal rise times. They can be connected to higher impedance loads, but this will result in a significant increase in the rise time. If higher output voltage is required, it is recommended to connect the detector to a trans-impedance amplifier with an Input impedance of 50Ω
-
Scientech Inc.
Scientech offers a wide selection of accessories for our detectors and power/energy meters to support or enhance your laser measurement. Fiber optic holders and adapters are available to allow direct fiber optic cable attachment to Astral and Vector 25mm calorimeters as well as Vector pyroelectric detectors (except the SP and HR models). Contact us if you have other fiber optic connector needs. For measuring at low power or energy (<30 mW or 30 mJ), Scientech recommends application of our Isoperibol™ enclosure to minimize environmental thermal interference. Isoperibol™ model 360203A is designed for use with 25mm aperture detectors, except slim profile models. Isoperibol™ model 360203F is designed for use with our PN 12420 adapter that attaches fiber holders to our 25mm detectors. A high-speed photodiode designed to attach to 25 mm Astral or Vector calorimeter apertures provides a temporal profile of the laser pulse when viewed on an oscilloscope. A wide variety of detector mounting assemblies are available for mounting the detector to an optical bench. Posts are available in 1/2" and 3/4" diameter and from 2 to 6 inches in length that attach to a selection of mounting bases.
