4.5 Commands
4 – 23
RILD?
Example:
100.0309
Laser Diode Voltage Reading
RVLD?
Query the operating voltage reading of the laser diode, in V.
Front panel:
LD :
.
RVLD?
Example:
1.302183
Photodiode Current Reading
RIPD?
Query the monitor photodiode current reading, in
μ
A.
RIPD?
always returns the measured photodiode current, in
μ
A, re-
gardless of control mode (CC or CP), optical power units (
PDMW
) or
even laser current source on
/
o
ff
.
Front panel:
LD :
(/,*
.
RIPD?
Example:
2003.021
Photodiode Power Reading
RWPD?
Query the monitor photodiode optical power reading, in mW.
RWPD?
returns the measured optical power, in mW, regardless of
control mode (CC or CP) or laser current source on
/
o
ff
. If the respon-
sivity (
RESP
) is not set to a good value, then
RWPD?
may return
nonsense.
Front panel:
LD :
/0-
.
RWPD?
Example:
307.001
LDC500 Series Laser Diode Controllers
