Tektronix OI1125, Instruction Manual

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OI1125 E/O Transmitter Instruction Manual
1
Getting Started
The OI1125 (Figure 1) is an electrical-to-optical transmitter that accepts serial
electrical data from a BERT (Bit Error Rate Tester) at rates up to 12.5 Gb/s and
outputs an equivalent high-speed serial optical signal.
The OI1125 Transmitter requires a continuous-wave optical input from a
polarization-maintaining laser source. The transmitter has an internal optical
source that can be used to drive the transmitter optical input, or an external,
tunable laser can be used. You can use the transmitter in a test system with the
OI2125 O/E Receiver to convert the optical signal from a DUT (Device Under
Test) to an electrical signal used by a BERT.
Using the transmitter and receiver combined with a BERT, you can test the bit
error rate of optical signals in DWDM, SONET/SDH, and other optical
transmission systems.
Modulator
out
Modulator
data in
Laser in Laser out
Laser enable
keyswitch
Figure 1: OI1125 E/O Transmitter
The OI1125 E/O Transmitter provides the following key features:
H
Supports standard SONET data rates from OC48 to OC192 and FEC data
rates up to 12.5 Gb/s
H
Optical wavelength range designed to operate in C band (1530 nm to
1565 nm)
H
High-quality optical eye pattern with low jitter
H
High extinction ratio (
≥
12 dB)
H
Polarization-controlled internal laser with +10 dBm output