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C30921EH

PerkinElmer Optoelectronics
Part Number C30921EH
Manufacturer PerkinElmer Optoelectronics
Description Silicon Avalanche Photodiodes
Published Oct 10, 2015
Detailed Description DATASHEET SENSOR SOLUTIONS Silicon Avalanche Photodiodes C30902 Series High Speed APDs for Analytical and Biomedical Lo...
Datasheet PDF File C30921EH PDF File

C30921EH
C30921EH


Overview
DATASHEET SENSOR SOLUTIONS Silicon Avalanche Photodiodes C30902 Series High Speed APDs for Analytical and Biomedical Lowest Light Detection Applications Overview PerkinElmer’s C30902EH avalanche photodiode is fabricated with a doublediffused “reach-through” structure.
This structure provides high responsivity between 400 and 1000 nm as well as extremely fast rise and fall times at all wavelengths.
The responsivity of the device is independent of modulation frequency up to about 800 MHz.
The detector chip is hermetically-sealed behind a flat glass window in a modified TO-18 package.
The useful diameter of the photosensitive surface is 0.
5 mm.
PerkinElmer’s C30921EH is packaged in a lightpipe TO-18 which allows efficient coupling of light to the detector from either a focused spot or an optical fiber up to 0.
25 mm in diameter.
The hermetically-sealed TO-18 package allows fibers to be epoxied to the end of the lightpipe to minimize signal losses without fear of endangering detector stability.
The C30902SH and C30921SH are selected C30902EH and C30921EH photodiodes having extremely low noise and bulk dark-current.
They are intended for ultra-low light level applications (optical power less than 1 pW) and can be used in either their normal linear mode (VR VBR) where a single photoelectron may trigger an avalanche pulse of about 108 carriers.
In this mode, no amplifiers are necessary and single-photon detection probabilities of up to approximately 50% are possible.
Photon-counting is also advantageous where gating and coincidence techniques are employed for signal retrieval.
Features and Benefits • High quantum efficiency of 77% typical @ 830 nm • C30902SH and C30921SH can be operated in “Geiger” mode • Hermetically sealed package • Low Noise at room temperature • High responsivity – internal avalanche gains in excess of 150 • Spectral response range – (10% points) 400 to 1000 nm • Ti...


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