ULTRAFAST PHOTODETECTORS UPD  
 

  Our UV-extended version is the only commercial photodiode that covers the spectral range from 190 nm to 1100 nm and has risetime below 200ps. Because of the extremely low dark current ,the built-in high -power battery provides trouble -free operation for UP TO FIVE YEARS! in combination with our ultrafast low-noise amplifiers(1 GHz bandwidth) the UPD-type photodetectors are an inexpensive alternative to the avalanche devices.  

Features:
-ultra high-speed operation
-risetime below 40 picoseconds
-wide spectral ranges
-built-in biasing
-long-life battery
-coaxial photodiode coupling
-compact design
-high sensitivity

 Applications:
-pulse form measurements
-pulse duration measurements
-precise synchronization		  
AVAILABLE TYPES:
photodetector rise time quantum efficiency sesitive area
UPD-200 <200ps 45 % 0.1 mm²
UPD-300 300 ps 80 % 0.25 mm²
UPD-500 500 ps 80 % 1.0 mm²
UPD-300 IR1 300 ps 75 % 0.008 mm²
UPD-70 IR2 70 ps 90 % 0.005 mm²
UPD-40 IR2 <40 ps 90 % 0.003 mm²
Spectral ranges: 320-110 nm(index S,Silicon), 190-1100 nm (index U, UV-enhanced Silicon), 700-1800 (index IR1, Germanium), 800-1700 (index IR2, InGaAs)
Window type: polished (index P) or diffuse (index D)
 
         
         
BROADBAND PULSE AMPLIFIERS

The ultrafast amplifiers BBA-10 and BBA-10-4HP find universal applications in high-speed electronics and especially in the laser/photonics research. They are primarily designed to amplify te signals of our ultrafast photodiodes. The latter combination is an inexpensive replacement for the avalanche photodiodes. Both types are inverting amplifiers, suitable for amplifying positive signals.  
FEATURES:
*extremely broad bandwidth
*low noise
*high gain 10x (+20dB)
*compact coaxial design
*noise immunity
APPLICATIONS:
*high-speed electrical and optical measurements
*laser/opto-electronics research
*photon counting		  
  BBA-10 BBA-10-4HP
BANDWIDTH 1 MHz - 1 GHz 1 MHz - 4 GHz
GAIN + 20 dB (x10 amplitude) + 20 dB (x10 amplitude)
EQUIVALENT INPUT NOISE 10 μV / 2.8 dB 180 μV / 4 dB
SATURATED OUTPUT LEVEL 200 mV 2800 mV
SINGLE POWER SUPPLY + 9 V / 20 mA + 9 V / 80 mA
DIMENSIONS (excluding BNC connectors) 25 x 25 x 20 mm 25 x 25 x 20 mm