SS-OCT System Base Unit
Chapter 2: Setup
Rev A, December 17, 2018
Page 7
2.2.2. Internal Electrical Connections
The USB connection to the PC is used for the control communication between the Software and Base Unit. The
acquisition and synchronization of the spectral information is using the SYNC Trigger connection.
2.2.3. Electrical Interfaces to Imaging Scanner
For the connection to a scanner application there are two different interfaces available:
The scanner connection port is intended to be used together with dedicated Thorlabs imaging scanners
OCTG and OCTP.
The auxiliary connection port is intended to be used together with the dedicated Thorlabs imaging
scanner OCTH and furthermore allows the use of a custom scanner. It hosts two analogue signals for
driving separate actuators (e.g. Galvanometer scanner), communication lines and supply voltages.
Imaging Scanner – Electrical Interfaces
Probe Connection Port
Lemo ECG.2B.319.CLL
Auxiliary Connection Port
Lemo ECA.1B.314.CLL
Table 1 Electrical Interfacess
Please contact Thorlabs’ tech support for information regarding the pin configuration.
2.3. Optical Interface to Imaging Scanner
The base unit incorporates one FC/APC fiber interface depending on the internal fiber architecture. If not
different due to customization, the single mode fiber used in the base units is given in Table 2:
Imaging Scanner - Optical Interface
Base Unit Series
Fiber Plug / Receptacle
Single Mode Fiber
Vega
FC/APC
Corning
Table 2 Optical Interface
