Filter
Top Products
Starter Kit Instruction Manual Description 15
4.3.4 Electrical model
The QCL can be modelised in a RC circuit.
Electrical model characteristics
The values given below apply for a 10µm
laser wavelength.
Note: Voltage and resistor values may vary
according to the type of laser.
R1 : .. . . . . . .. . . . . .. . . . . . .. . . . . . . .. . . . . . .. . . . . . 10 to 20Ω when a voltage of 4 to 6 Volts is applied
R1 : . . . . . .. . . . . . .. . . . . . . .. . . . . . .. . . . . . . .. . . . . . .. . . . .. . . . . . .. . . . . . .. . . . 2 to 4Ω up to 10 - 12 Volts
R1 : . . .. . . . . . . . .. . . . . .. . . . . .. . . . . 10 to 20Ω over 12 Volts, after which the laser no longer oper ates
C1 : . .. . . . . . .. . . . . .. . . . . . . . .. . . . . .. . . . . .. . . . 100pF, capacitor b etween the anode and the catho de
C2 : . . .. . . . . .. . . . . . .. . . . . . . .. . . . . .. . . . . . .. . . . . . <100pF, depending on your mounting of the laser
− −
+
=
+
R1
C1
C2
Fig.5: Electrical model of QCL