Theory Of Operation; Figure 11: Transmitter Interconnect Diagram - Tektronix OI1125 Instruction Manual

Theory of Operation

Front Panel
E/O Tx Front
Panel Board
Extinction
Ratio Adjust
E Data In
Modulator
Laser In
Modulator
Laser Out
External
l
Patch
Adjust
Cord
Laser Power Keyswitch
Internal Laser Out

Figure 11: Transmitter interconnect diagram

OI1125 E/O Transmitter Instruction Manual
This section describes the electrical and optical circuit operation of the transmit-
ter at the block diagram level. Refer to Figure 11 as you read the circuit
description.
Tx Board
Bias Adjust
Circuit
Gain
Adjust
Gain
Modulator
Driver
RF DC
Modulator
Bias TE Cooler
Circuit
Laser
DFB Laser
Power
Control
The OI1125 E/O Transmitter is made up of four interconnected assemblies: the
front and rear panels, the main transmitter board, and the DC power supply.
Power Cable
Splitter
Control Cable
Power Supply
Rear Panel
On/Off Switch
Power In
Remote Interface
Direct Modulation In
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