Sacher Lasertechnik LB2001 - Page 9

Operation Manual LB2001 Sacher Lasertechnik
GmbH
_____________________________________________________________________________________________________
Adress:
Sacher Lasertechnik GmbH
Rudolf-Breitscheid-Str. 1-5
D-35037 Marburg, Germany
Tel.: +49 (6421) 305-0
Fax.: +49 (6421) 305-299
EMail: contact@sacher-laser.com
Web: http://www.sacher-laser.com
Sacher Lasertechnik, LLC
5765 Equador Way
Buena Park, CA 90620, USA
Tel.: 1-714-670-7605
Fax: 1-714-670-7662
Email: sales@sacher-
laser.com
Page 9
Version:
Preliminary 2011-01-01
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Polarity switch for PT1 and DT1 filter unit
Corner frequency (CF) / Attenuator selection switch
Filter selection switch.
Sweep Center (Output Offset): This knob adjusts the offset voltage of the signal from
Output. The offset voltage can be adjusted from the negative voltage limit (fully
counter clockwise) to the positive voltage limit (fully clockwise). See the section
Setting Output Voltage Limits in Chapter 3 for more details on setting the output voltage
limits.
Sweep Span: This knob controls the attenuation of the Sweep In signal. Attenuation is
near linear from zero (Off, fully counter-clockwise) to unity gain (fully clockwise).
This knob is used to adjust the amplitude of the sweep input signal.
Gain: This adjustment knob controls the overall feedback gain of the loop filter from
-40 dB (fully counter clockwise) to +40 dB (fully clockwise) with a 1dB step
resolution. The gain value is displayed above.
LF Gain Limit: This switch controls the low frequency gain limit (LFGL) of the loop
filter. The value of low frequency is displayed above. This knob is only active when
the Acquire switch is in LFGL mode. See the section Filter Transfer Functions in
Chapter 3 for details.
Display section PI corner frequency (left) , Low Frequency Gain Limit (middle)
Gain (right)
P-I Corner: This switch sets the proportional-integral (P-I) corner frequency of the
filter. The corner frequency is displayed above. See the section Filter Transfer
Functions for details.
Offset Adjustment (Bias): This adjustment knob controls a stable offset voltage with a
16 bit resolution that can be added to the voltage of input signal. This offset can be
adjusted over 10 V with a resolution of <1mV. The offset voltage changes linearly
with <1mV per step. The selected offset is displayed above.