Using the OSICS TLS-AG Module
238
OSICS User Manual
15.6.2 Enabling/Disabling the SBS Suppression
Subject
The
SBS Suppression
mode allows you to add internal frequency modulation to the
source.
If the SBS function is activated, a
S
flag appears in the
Info
column of the
System Status
screen (see
). If the
Fine Tune
function is also used (value not equal to
zero), the flag is
B
.
Procedure
1.
Access the TLS-AG
Unit Setup
menu (see section
Accessing an OSICS Module Setup
).
2.
Expand the
SBS Suppression
menu and enter the
SBS On/Off
sub-menu.
The sub-menu appears and displays the current state of the SBS Suppression.
Figure 178: TLS-AG Unit Setup – SBS Suppression sub-menu
3.
Turn the rotary knob to put the cursor before the
On
setting, and press it to validate
your selection.
The SBS Suppression is set to On and the
Unit Setup
menu is automatically
displayed.
15.6.3 Disabling the Frequency Control Dither Function
Subject
The OSICS TLS-AG tunable laser uses a dither tone at 888 Hz used to lock the emission
wavelength onto its targeted value in order to get exceptional wavelength and power
stability over time.
For experiments requiring very low linewidth and no jitter on the frequency, you can
disable this modulation as explained in the following procedure.
If the
Frequency Dither Control
function is disabled, a
D
flag appears in the
Info
column
of the
System Status
screen (see
). Long-term wavelength stability could be
slightly affected.
In the
Info
column of the
System Status
screen, flags record the last action performed: if
the flag was
S
or
B
, it becomes
D
; if the flag is
D
and SBS suppression is activated, then it
becomes
B
.
Procedure
1.
Access the TLS-AG
Unit Setup
menu (see section
Accessing an OSICS Module Setup
).
2.
Expand the
SBS Suppression
menu and enter the
Freq. Dither Control
sub-menu.
Main
EXIT
1
2
3
4
5
6
7
8
TLS Unit Setup - SBS On/Off
ESCAPE
▲
Off
On
SBS suppression :
Select a new value.
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Страница 6: ...About This Manual 6 OSICS User Manual...
Страница 28: ...Installing and Connecting the OSICS Multifunction Platform 28 OSICS User Manual...
Страница 56: ...Using the OSICS ATN HP Module 56 OSICS User Manual BKR TLS 50 ATN DFB ECL T100 SLD SWT TLS AG SWT APC MAIN...
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Страница 136: ...Using the OSICS SLD Module 136 OSICS User Manual BKR TLS 50 ATN DFB ECL T100 SLD SWT TLS AG SWT APC MAIN...
Страница 248: ...Certification and Compliance 248 OSICS User Manual...
