Quantel Ultra Big Sky Laser Series User Manual page 44

40 | Contents | Software
Feature Operation
Q-Switch Auto Ratio, query
Example: QSF QS rep-rate
F/04
Q-Switch Auto Ratio, set
Example: QSF3 QS rep-rate
F/03
Q-Switch Burst Count, query
Example: QSP
Q-Switch Burst Count, set
Example: QSP100
Q-Switch
indicating that the Q-Switch will fire 20 times after
Commands
start-up
(continued)
Q-Switch Scan Parameters, query
Example: Q
Q-Switch Scan Parameters, set
Example: Q051099  Q 05 10 99
sets parameter to use 5 passive pulses and 10
active pulses in a scan, repeating forever (because
total scans=99 has a special function*).
Take careful note of the format for these values.
Following the letter "Q" you must have a two-digit
string representing the number of passive pulses,
then (with no space), a two-digit string representing
the number of active pulses, then (with no space),
a two-digit string representing the total number of
scans. If any of these numbers is less than 10, the
first digit of the two-digit string must be 0.
Version M 22-April-2012
Command
QSF
QSFnn
where "nn" is
the rate setting
QSP
burst QS 020
QSPnnn
burst QS 100
Q
Q 11 22 33
Qppaatt
Response
Description
format
QS rep-rate F/nn Queries or sets the Q-Switch auto ratio. In "Auto" mode with
Internal Q-Switch sync selected, the Q-Switch will fire at a
where "nn" is the rate
rate equal to or less than the flashlamp rate. This setting
setting
specifies the number of times the flashlamp fires without
causing a Q-Switch. If this setting is "1", the Q-Switch will
fire every time the flashlamp fires. If it is "2", the Q-Switch
will fire every second time, etc. The range of acceptable
values for QSF is 1 to 99.
burst QS nnn Queries or sets the number of Q-Switch pulses to fire when
in Burst mode. In "burst" mode with Internal Q-Switch sync
where "nnn" is the burst
count selected, the Q-Switch will fire this many times, then stop.
The range of acceptable values for QSP is 1 to 999.
Q pp aa tt Queries or sets the Scan parameters. In Scan mode with
Internal Q-Switch sync selected, a scan consists of a series
where:
of active pulses followed by a series of passive pulses.
"pp" is the passive
count,
• Active flashlamp pulses have an associated Q-Switch
"aa" is the active count,
pulse.
and
• Passive flashlamp pulses have no Q-Switch pulse.
"tt" is the total count
The Total Scans parameter sets the number of "scan" cycles
composed of active pulses and passive pulses, before the
Q-Switch is disabled.
*If the Total Scans parameter is 99, Q-Switching is not
disabled. The maximum value for all of these settings is 99.
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