![[School of Physics - Optics Group]](its1.gif)
Laser protection board: Testing, known bugs and fixes
This page lists such things as modifications, improvements, testing procedures,
known bugs and their fixes for this PCB.
The laser protection circuit is shown with
two series inductors of 100uH and a parallel 1uF capacitor. These
limit current modulation (see item 3 under 15
August, below). Bandwidth depends on dynamic
resistance of the laser diode). If you want to try
proportional feedback to the diode current, remove the capacitor and
add a resistor in parallel to both inductors, e.g. 43 ohms as
in the Libbrecht and Hall design.
Created: 16 August 2000
Last modified:
Maintainer: Robert Scholten, School of Physics, Email: r.scholten at
physics.unimelb.edu.au
Authorised by: Robert Scholten, School of Physics, Email: r.scholten at physics.unimelb.edu.au
This page, its contents and style, are the responsibility of the author
and do not represent the views, policies or opinions of The University
of Melbourne.