Configurations of EPC1000
![](img/Bild1_configurations_n03.png)
Standard configuration for polarization demultiplex of polarization-multiplexed QPSK or QAM signals. SMF or PMF outputs. Broadband interference between polarization channels is minimized, using photoreceivers and RF detector.
![](img/Bild2_configurations_n03.png)
As above, but with only one output, for scenarios with high polarization-dependent loss. Two units are needed here to demultiplex both polarization channels.
![](img/Bild3_configurations_n03.png)
Two outputs, user-supplied electrical error signal. This versatile configuration is adaptable for all special needs.
![](img/Bild4_configurations_n03.png)
For polarized input signals (= having a single polarization). Cross-polarized signal intensity is minimized at second polarization beam splitter output. Co-polarized signal exits therefore with maximum intensity at main polarization beam splitter output.
![](img/controller_setup_bypass_O_n05.png)
As above, but optical switches allow bypassing of polarization beamsplitter, for use of external polarization beamsplitter. Endless output polarization control available!
![](img/Bild6_configurations_n10_3PSLOE.png)
More versatile than above, 3 outputs, additional electrical error signal input, LAN connection (in addition to USB, SPI, JTAG). Endless output polarization control available!
![](img/controller_dual_and_single_polarization_tracking.png)
Dual-polarization QPSK and QAM demultiplexing with interference detection, or single-polarization tracking with optical error signal
![](img/Bild7_configurations_n10_3PSLPE.png)
Dual-polarization QPSK and QAM demultiplexing with interference detection, or control based on electrical error signal. Endless output polarization control available.