© 2015 Thorlabs
44
Series 4000 SCPI Programmers Reference Manual
SOUR:AM 1
Enables LD source modulation on a LDC4000 Series or an ITC4000 Series instrument.
SOUR:AM:SOUR EXT
Selects the external BNC connector as source for modulation.
SOUR:AM:SOUR INT,EXT
Selects both, internal modulator and external BNC connector as source for modulation.
SOUR:AM:INT:FREQ? DEF
Queries the default internal modulation frequency.
1.03
Typical response.
Note
This command is valid for LDC4000 and ITC4000 Series instruments only.
3.7.7 QCW Pulse Setting
Syntax
SOURce[1]:PULSe:PERiod {MIN|MAX|DEF|<secs>}
SOURce[1]:PULSe:PERiod? [{MIN|MAX|DEF}]
SOURce[1]:PULSe:WIDTh {MIN|MAX|DEF|<secs>}
SOURce[1]:PULSe:WIDTh? [{MIN|MAX|DEFault}]
SOURce[1]:PULSe:DCYCle {MIN|MAX|DEF|<percent>}
SOURce[1]:PULSe:DCYCle? [{MIN|MAX|DEF}]
SOURce[1]:PULSe:HOLD {WIDTh|DCYCle}
SOURce[1]:PULSe:HOLD?
Description
The
SOURce[1]:PULSe:PERiod
command sets the period time of the internal modulator.
The
SOURce[1]:PULSe:WIDTh
command sets the pulse width of the internal modulator.
The
SOURce[1]:PULSe:DCYCle
command sets the duty cycle of the internal modulator.
The
SOURce[1]:PULSe:HOLD
command sets, for a pulsed waveform, the parameter to be held
constant when the period changes.
Example
SOUR:PULS:PER 0.0001
Sets the pulse period to 100µs.
SOUR:PULS:DCYC MIN
Sets the duty cycle of the internal modulation to its minimum.
SOUR:PULS:HOLD?
Queries the parameter to be held constant for a pulsed waveform.
WIDT
The response is either
WIDT
or
DCYC
.
Note
This command is valid for LDC4000 and ITC4000 Series instruments only.
Summary of Contents for 4000 Series
Page 1: ...Series 4000 LDC40xx TED4015 ITC40xx SCPI Programmer s Reference Manual 2015 ...
Page 2: ...Version Date 3 3 08 Apr 2015 Copyright 2015 Thorlabs ...
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Page 92: ... 2015 Thorlabs 90 Series 4000 SCPI Programmers Reference Manual instrument ...