Quantum Instruments Cascade Laser Starter Kit - Manual (Page 31)

Chapter 6
Use
6.1 Chapter overview
This chapter describes how to use the QCL Starter
Kit. It also explains the functionalities of the TPG128
and the Temperature Controller (TCU151).
6.2 QCL pulse timing unit com-
mand description
The Quantum Cascade Laser is controlled by the
QCL pulse timing unit TPG128. The TPG128 front
panel is composed of the following items:
(1) Power ON/OFF switch.
(2) Period fine 10 turns potentiometer.
(3) Period range 3 positions switch.
(4) Pulse duration 10 turns potentiometer.
(5) BNC 50Ω TTL pulse 2 output.
(6) BNC 50Ω TTL pulse 1 output.
(7) BNC 50Ω TTL Trig OUT.
(8) BNC TTL Gate IN.
(9) LEMO 00 12VDC output (for LDD100).
TPG
128
−TT
L P
ulse
Gen
erato
r
OF
F
ON Pow
er
0.2
to 2
.2 µ
s
0.5
to 1
0.5 µ
s
5 to
105
µ
s 0 to
200
ns
−−−
− −
−−−
−Pe
riod
−−−
−−−
−−−
−D
ura
tio
Gat
e IN
Trig
OU
T
Ou
t 1
Ou
t 2
50 ohm
s
50 ohm
s
50 ohm
s
ma x 6 0m A
+12
V 0 V
6
1
2
3
9
8
7
5
4
Fig.18: TPG128 front panel
30