HP 8163A Series, User Manual

Page: 98 / 207

98
Tunable Laser Sources
How to Set the Power
How to Set the Output Power of a CW Signal
How to Set Output Power
To set the output power to 555.000
µ
W:
A t t e n u a t o r If your tunable laser has an in-built optical attenuator, move to
[P
OWER
M
ODE
], press E
NTER
, move to <A
UTOMATIC
>, and press E
NTER
.
1 Move to the power parameter, [P], and press [Pwr unit].
2 Move to <W> and press E
NTER
.
3 Press E
NTER
to start editing the output power value.
4 Enter 555.000, press [Unit+] or [Unit
−
], as required, to select
µ
W as the power units, and press E
NTER
.
How to Set the Optical Output
To set the Optical Output of a Tunable Laser module with two
optical outputs:
1 Press [Details].
2 Move to [O
PTICAL
O
UTPUT
] and press E
NTER
.
3 Use the Modify Knob to move to one of the following:
• <H
IGH
P
OWER
(2)>, a high power optical output for use in
tesing Erbium Doped Fiber Amplifiers (EDFAs), you see a
screen similar to Figure 5-1,
• <L
OW
SSE (1)>, a lower power optical output with low
Source Spontaneous Emission (SSE) for use in passive
component test, you see a screen similar to Figure 5-2,
• <B
OTH
(
MASTER
:2)>, where both optical outputs can be
enabled but only the output of the high power optical output
can be regulated, and
• <B
OTH
(
MASTER
:1)>, where both optical outputs can be
enabled but only the output of the low SSE optical output can
be regulated.