ReadyPlanet.com
dot dot
dot
Laser and Photonics
dot
bulletLaser Diode and DPSS Laser system
bulletHigh Power Tunable External Cavity Diode Lasers
bulletNd:YAG Laser Systems
bulletSpectral Products & CVI Laser
bulletExcimer Lasers
bulletSynrad Lasers
dot
Calibration and Measuring Instruments
dot
bulletGauge Calibration Instruments
dot
Flatness and Roughness Interferometer
dot
bulletCorning Tropel Interferometer system
bulletMask Aligner & Spin Coater equipment
dot
Imaging and Spectroscopy system
dot
bulletPCO Imaging High Performance Camera system
bulletCustomer Laser Spectroscopy and High Resolution Imaging System
bulletCryogenic
dot
Industrial and Manufacturing
dot




Balanced Photodiode Receiver article

Balanced Photodiode Receiver

High Speed | Low Noise | Excellent Signal Response

Description:

The Balanced Photodiode Receiver is a fast optical detector. It includes two fast photodiodes with a difference amplifier. It is designed for comparing power differences between two correlated optical signals. The result is an effective elimination of almost all noise from a spectroscopic analysis.
Balanced Photodiode Receiver

 



Technical Details

Spectroscopic methods are sensitive to flucuations of the output power of the laser system. A very powerful tool to overcome power flucuations and noise contributions of the driving laser system is to use a balanced receiver. A concept for overcoming the described power fluctuations is to compare instantaneously the original power of the driving laser system with the laser power after passing the absorption line. This is realized by a balanced receiver. Balanced receivers consist in principle of two photo diodes and an internal differential amplifier which compares the signal of both photodiodes. A typical setup for locking the wavelenght / frequency of diodelaser is shown in the above figure.

 



Specs & Stock List

Differential Amplification

  • 5,5..107 (adjustable)

Signal Conversion

  • 1V/mA
  • 10V/mA
  • 100V/mA

Bandwidth:               

  • 650kHz @ 1V/mA
  • 65kHz @ 10V/mA    
  • 6,5kHz @ 100V/mA

Output Voltage     

  • 0..6,5V (Conversion dependend)

Housing Dimensions

 



Support & Download

Technical Documents




High Power Tunable External Cavity Diode Lasers




Copyright © 2010 All Rights Reserved.