Quantum Instruments Cascade Laser Starter Kit - Manual (Page 20)

Starter Kit Instruction Manual Description 19
4.4.4 Measurement connection
These connections give access to the voltage on the
laser.
The ”L” connection is connected AC coupled to
the cathode of the laser through a divider by ten.
The end of cable must be 50Ω terminated for accu-
rate measurement. The ”B” is connected the same
to the anode of the laser (Base Receptacle).
By using the math trace of an oscilloscope show-
ing the ”L” channel minus the ”B”, one can get the
voltage on the laser.
This measurement is more accurate than the in-
formation obtained from the LDD100 measurement
unit.
For more details, refer to LDD100 Diagram Block
on page ??.
Specifications of the measurement connector
Vacuum case plug reference: . . . . . . . LEMO #
HGP.00.250.CTLPV
Cable plug reference: . . . . . . . . . . . . . . LEMO #
FFS.00.250.CTCE31
Cable :. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RG174