Optical Output; Electrical Connectors - Keysight N77 Series N7711A User Manual

1
Getting Started

Optical Output

Electrical Connectors

C A U T I O N
22
Polarization Maintaining Fiber
A Polarization maintaining fiber (PMF) output is standard for Keysight
N7711/4A tunable laser system sources. PMF is aligned to maintain the
state of polarization. A well defined state of polarization helps ensure
constant measurement conditions. The fiber is of Panda type, with TE
mode in the slow axis in line with the connector key.
Figure 9 Polarization maintaining fiber
There are two BNC connectors on the rear panel of your instrument.
These are the Trigger Out and the Trigger In connectors.
The Trigger In is a TTL input. A maximum of 5 V can be applied as an external voltage
to this input connector.
The Trigger Output is the only output BNC connector. This is a TTL output. Do not
apply an external voltage to this connector.
Keysight N77xx Series