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Ultrafast Photodetectors: UPD Series


Ultra High-Speed Operation
Rise Times: starting from 15 ps
Bandwidths: up to 25 GHz
Spectral Ranges: 170 - 2600 nm (UV to IR)
Compact Design
Battery or External Power Supply
Models for Free-Space Beam or with FC / PC Receptacle or Pigtailed with SM FIber
Application Pulse Form Measurements
Pulse Duration Measurements
Precise Synchronization
Mode Beating Monitoring
Heterodyne Measurements
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Product Info



Ultrafast Photodetectors: UPD Series

 

 


 


42 UNIQUE PHOTODIODE MODELS AVAILABLE NOW! ALPHALAS GmbH has released new models of ultrafast photodiodes that expand the product range towards faster rise time and wider wavelength ranges from ultraviolet to infrared.

 


Introducing the UPD Series of Ultrafast Photodiodes

The UPD series of ultrafast photodetectors are best suited for measurement of optical waveforms from DC to 25 GHz. Various models feature rise times as short as 15 ps and cover the spectral range from 170 to 2600 nm.

All photodiodes are enclosed in compact and solid aluminum housings and can be biased with a battery or an external power supply.

The UV-extended versions of the silicon type photodetectors are the only commercial products that cover the spectral range from 170 to 1100 nm.

Another type of unique UV-sensitive InGaAs photodetectors can be used for detecting laser pulses in the range from 350 to 1700 nm, thus having the widest spectral range and the highest speed commercially available.

Perfect impedance matching and state-of-the-art microwave technology assure pulse form measurements without any ringing or artefacts. The customer is free to use a 50 Ω terminating resistor for highest speed operation, or a high impedance load for obtaining large signals. This guarantees maximum flexibility for diverse applications.

In combination with our BBA series of wideband high-gain amplifiers, the high-speed photodetectors are an advantageous alternative to the expensive and cumbersome avalanche photodiodes.

The UPD series high-speed photodetectors are indispensable tools for laser and photonics research.



New Photodetector Models Available: Faster Rise Times & Wider Wavelength Ranges

  • UPD-15-IR2-FC: Ultrafast InGaAs PIN photodetector, rise time < 15 ps, bandwidth > 25 GHz, spectral range 800 - 1700 nm, fiber-coupled input with FC/APC connector
  • UPD-35-IR2-PUPD-35-IR2-D: Ultrafast InGaAs PIN photodetectors, rise time < 35 ps, bandwidth > 10 GHz, spectral range  800 - 1700 nm, with polished or diffuse window
  • UPD-35-UVIR-PUPD-35-UVIR-D: Ultrafast InGaAs PIN photodetectors, rise time < 35 ps, bandwidth > 10 GHz, spectral range 350 - 1700 nm, with polished or diffuse window
  • UPD-50-SPUPD-50-SDUPD-50-UDUPD-50-UP: Ultrafast Si PIN photodetector, rise time 50 ps, fall time 50 ps, bandwidth > 7 GHz,
    spectral range 170 - 1100 nm or 320 - 1100 nm, with polished or diffuse window
  • UPD-100-IR1-P: Ultrafast Ge photodetector, rise time < 100 ps, pulsewidth (FWHM) 300 ps, spectral range 400 - 2000 nm
  • UPD-3N-IR2-P: Fast InGaAs photodetector, extended infrared range up to 2.1 µm, rise time 150 ps
  • UPD-5N-IR2-P: Fast InGaAs photodetector, extended infrared range up to 2.6 µm, rise time 200 ps























Ultrafast Photodiodes (UPD Series) - Available Models

Photodetector Model         

Rise Time  

(ps) 

Band-width 

(GHz) 

Spectral Range
(nm)
Quantum
Efficiency
@ Peak

Sensitive Area

(Dia.um/mm2)

Noise Equiv. Power (W/√Hz)

DarkCurrent  

(nA) 

Material      Optical Input / Window Type 1)

RF Output  

Connector 

UPD-15-IR2-FC< 15> 25800 - 170075%Fiber, 9 µm1.0 × 10-150.1InGaAsFiber w. FC/APC 5)SMA
UPD-30-VSG-P< 30> 10320 - 90040%200x200/0.043.0 × 10-150.1GaAsPolished, glassSMA
UPD-35-IR2-P< 35> 10800 - 170080%55/0.00241.0 × 10-150.3InGaAsPolished, glassSMA
UPD-35-IR2-D< 35> 10800 - 170080%55/0.00241.0 × 10-150.3InGaAsDiffuse, quartzSMA
UPD-35-IR2-FR< 35> 10800 - 170080%55/0.00241.0 × 10-150.3InGaAsFC/PC receptacle 5)SMA
UPD-35-IR2-FC< 35> 10800 - 170080%Fiber, 9 µm1.0 × 10-150.3InGaAsFiber w. FC/APC 5)SMA
UPD-35-UVIR-P< 35> 10350 - 170080%55/0.00241.0 × 10-150.3InGaAs 4)Polished, MgF2SMA
UPD-35-UVIR-D< 35> 10350 - 170080%55/0.00241.0 × 10-150.3InGaAs 4)Diffuse, quartzSMA
UPD-40-VSI-P< 40> 8.5500 - 169040%200x200/0.043.0 × 10-105000InGaAsPolished, glassSMA
UPD-40-IR2-P< 40> 8.5800 - 170080%60/0.00281.1 × 10-150.5InGaAsPolished, glassSMA
UPD-40-IR2-D< 40> 8.5800 - 170080%60/0.00281.1 × 10-150.5InGaAsDiffuse, quartzSMA
UPD-40-IR2-FR< 40> 8.5800 - 170080%60/0.00281.1 × 10-150.5InGaAsFC/PC receptacle 5)SMA
UPD-40-IR2-FC< 40> 8.5800 - 170080%Fiber, 9 µm1.1 × 10-150.5InGaAsFiber w. FC/APC 5)SMA
UPD-40-UVIR-P< 40> 8.5350 - 170080%60/0.00281.1 × 10-150.5InGaAs 4)Polished, MgF2SMA
UPD-40-UVIR-D< 40> 8.5350 - 170080%60/0.00281.1 × 10-150.5InGaAs 4)Diffuse, quartzSMA
UPD-50-SP< 50> 7.0320 - 110045%100/0.00791.2 × 10-150.001SiPolished, glassSMA
UPD-50-SD< 50> 7.0320 - 110045%100/0.00791.2 × 10-150.001SiDiffuse, quartzSMA
UPD-50-UP< 50> 7.0170 - 110045%100/0.00791.2 × 10-150.001Si 4)Polished, MgF2SMA
UPD-50-UD< 50> 7.0170 - 110045%100/0.00791.2 × 10-150.001Si 4)Diffuse, quartzSMA
UPD-70-IR2-P< 70> 5.0800 - 170080%80/0.0052.0 × 10-150.8InGaAsPolished, glassSMA
UPD-70-IR2-D< 70> 5.0800 - 170080%80/0.0052.0 × 10-150.8InGaAsDiffuse, quartzSMA
UPD-70-IR2-FR< 70> 5.0800 - 170080%80/0.0052.0 × 10-150.8InGaAsFC/PC receptacle 5)SMA
UPD-70-IR2-FC< 70> 5.0800 - 170080%Fiber, 9 µm2.0 × 10-150.8InGaAsFiber w. FC/APC 5)SMA
UPD-70-UVIR-P< 70> 5.0350 - 170080%80/0.0052.0 × 10-150.8InGaAs 4)Polished, MgF2SMA
UPD-70-UVIR-D< 70> 5.0350 - 170080%80/0.0052.0 × 10-150.8InGaAs 4)Diffuse, quartzSMA
UPD-100-IR1-P< 100> 3.0400 - 200080%80/0.0053.0 × 10-13700GePolished, glassSMA
UPD-200-SP< 175> 2.0320 - 110085%400/0.1261.5 × 10-150.001SiPolished, glassBNC
UPD-200-SD< 175> 2.0320 - 110085%400/0.1261.5 × 10-150.001SiDiffuse, quartzBNC
UPD-200-UP< 175> 2.0170 - 110085%400/0.1261.5 × 10-150.001Si 4)Polished, MgF2BNC
UPD-200-UD< 175> 2.0170 - 110085%400/0.1261.5 × 10-150.001Si 4)Diffuse, quartzBNC
UPD-300-SP< 300> 1.0320 - 110090%600/0.2833.0 × 10-150.01SiPolished, glassBNC
UPD-300-SD< 300> 1.0320 - 110090%600/0.2833.0 × 10-150.01SiDiffuse, quartzBNC
UPD-300-UP< 300> 1.0170 - 110090%600/0.2833.0 × 10-150.01Si 4)Polished, MgF2BNC
UPD-300-UD< 300> 1.0170 - 110090%600/0.2833.0 × 10-150.01Si 4)Diffuse, quartzBNC
UPD-500-SP< 500> 0.6320 - 110090%800/0.53.5 × 10-150.01SiPolished, glassBNC
UPD-500-SD< 500> 0.6320 - 110090%800/0.53.5 × 10-150.01SiDiffuse, quartzBNC
UPD-500-UP< 500> 0.6170 - 110090%800/0.53.5 × 10-150.01Si 4)Polished, MgF2BNC
UPD-500-UD< 500> 0.6170 - 110090%800/0.53.5 × 10-150.01Si 4)Diffuse, quartzBNC
UPD-3N-IR2-P< 150 6)> 0.4 6)800 - 210075%300/0.071.5 × 10-1390InGaAsPolished, glassBNC
UPD-5N-IR2-P< 200 6)> 0.3 6)800 - 260070%300/0.077.0 × 10-132000InGaAsPolished, glassBNC
UPD-2M-IR2-P< 75000> 0.004900 - 170080%2000/3.144.0 × 10-145InGaAsPolished, glassBNC
UPD-2M-IR2-P-1TEC 3)< 75000> 0.004900 - 170075%2000/3.141.0 × 10-140.3InGaAsPolished, glassBNC

Notes:
1) The diffuse window reduces the positioning accuracy requirements and increases the damage threshold at the cost of a reduced sensitivity by a factor of approx. three to five. Recommended for high peak power lasers only.
2) This model has negative output. All other models have positive output by default but may be ordered with negative output if required.
3) With TEC cooling module, non-standard housing.
4) Modified material with increased blue / UV sensitivity.
5) Not compatible with the optional filter holder.
6) Greatly improved performance.

 

Power Sources for UPD Series Photodetectors  Related Products
  • Low-Noise Power Supply, Input: 230 V AC (European standard)
    PS-UPD-12-EU: Output: 12 V DC
  • Low-Noise Power Supply, Input: 100 - 240 V AC (for worldwide usage)
    PS-UPD-6-WW
    : Output: 6 V DC
    PS-UPD-9-WW: Output: 9 V DC
    PS-UPD-12-WW: Output: 12 V DC
  • BAT-UPD-6V: Bias Battery, 6 V
  • Broadband Amplifiers BBA Series
  • (amplitude gain: ×10, ×100 or variable ×1÷100)
  • BNC 50 Ω Terminating Load
  • SMA (male) to BNC (female) Adapter
  • SMA to SMA Adapter
  • Attenuator Filter Adapter

 


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