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High Speed Photodiode

Photonics Spectra - July 2014

Photonics Spectra - July 2014

…flow path results in fast measurement speeds.
The ideal sensor for embedded
power measurement would
combine the broad wavelength
sensitivity, large dynamic range
and high damage resistance of a
thermopile with the fast response
of a semiconductor photodiode.

2016-Ultrafast-Laser-Systems-Catalog.pdf

2016-Ultrafast-Laser-Systems-Catalog.pdf

…compensate low, medium
and high frequencies.The actuators are controlled by
feedback electronics while a high-speed photodiode
simultaneously monitors the laser repetition-rate.
The Synchrolock-AP uses the 9th harmonic content
of the photodiode signal to provide a higher…

PowerMax-USB-RS-Sensors-Product-Guide.pdf

PowerMax-USB-RS-Sensors-Product-Guide.pdf

…Maximum Power Density (W/cm2) 20
Response Time (sec.)
Speed-up On -
Speed-up Off (o% to 100%) 0.1
Detector Element Silicon photodiode
Optic ND2
Detector Diameter (mm) 10
Calibration Uncertainty (%) ±2
Power Linearity (%) ±1
Spectral Compensation Accuracy…

COHERENT LMC 2016-2017 Catalog .pdf

COHERENT LMC 2016-2017 Catalog .pdf

…Power Density (W/cm2) 20
Response Time (sec.)
Speed-up On -
Speed-up Off (o% to 100%) 0.1 0.5
Detector Element Silicon photodiode
Optic ND2 Diffuse Quartz
Detector Diameter (mm) 10 8
Calibration Uncertainty (%)(k=2) ±1
Power Linearity (%) ±1
Spectral…

Whitepaper LMC PM-Pro LAM updtd 3 05 19.pdf

Whitepaper LMC PM-Pro LAM updtd 3 05 19.pdf

…thermopile with the response speed of a semiconductor photodiode (see
side bar).
This unique set of characteristics is particularly beneficial in this application. Unlike a photodiode,
which saturates at very low light levels, the PowerMax-Pro can measure high laser power directly…

COHR RLScatalog 2017revA web.pdf

COHR RLScatalog 2017revA web.pdf

…compensate low, medium
and high frequencies.The actuators are controlled by
feedback electronics while a high-speed photodiode
simultaneously monitors the laser repetition-rate.
The Synchrolock-AP uses the 9th harmonic content
of the photodiode signal to provide a higher…

COHR RLScatalog2020 interactive.pdf

COHR RLScatalog2020 interactive.pdf

…compensate low, medium and
high frequencies. The actuators are controlled by feedback
electronics while a high-speed photodiode simultaneously
monitors the laser repetition-rate.
The Synchrolock-AP uses the 9th harmonic content of the
photodiode signal to provide a higher…

LabMax-Pro-Data-Sheet FORMFIRST.pdf

LabMax-Pro-Data-Sheet FORMFIRST.pdf

…example, it has also been used to speed up diode testing with faster LIV curve sampling combined with higher sampling resolution. In the traditional 10 Hz sampling mode, PowerMax-Pro sensors provide an instant power reading, much like a photodiode but at very high powers. Legacy thermopiles and…

COHR PR 1453 Fast OEM Laser Power Sensor Elevates In-Line Control of Critical Processes.pdf

COHR PR 1453 Fast OEM Laser Power Sensor Elevates In-Line Control of Critical Processes.pdf

photodiodes and other detectors commonly used for continuous inline monitoring in applications having a narrow process window. Specifically, the new PowerMax PRO OEM utilizes Coherent's patented transverse thermoelectric detector technology, which combines the response speed of a photodiode with the…

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…enables high speed average power, peak power and pulse shape measurements of industrial lasers, thus solving this problem. Traditional Laser Power Sensors The two technologies that have been in use for decades for measuring the average power of lasers are thermopile and semiconductor photodiode.

LIT Lasers-LED NO3-Cost-Issues 1114.pdf

LIT Lasers-LED NO3-Cost-Issues 1114.pdf

…also mean using a photodetector with higher gain and/or lower noise. For example, a particular instrument may only require a zero-gain photodiode or low-cost photodiode array when based on laser excitation, but may need a photomultiplier tube or a CCD array when used with a LED source. For instances…

WP-Meterless-Laser-Power-Energy-Measurement-Simplifies-Embedding.pdf

WP-Meterless-Laser-Power-Energy-Measurement-Simplifies-Embedding.pdf

…Semiconductor Photodiodes
Ideal for low power measurements of CW
lasers, and pulse shape characterization.
Semiconductor photodiodes convert incident photons into charge carriers (electron
and holes), which can be sensed as current or voltage. Photodiodes offer high