EXFO PSO-100 Series Optical Sampling Oscilloscopes - Manual (Page 12)

Introducing the PSO-100 Optical Sampling Oscilloscope Series
4 PSO-100
Typical Applications
Typical Applications
The Optical Sampling Oscilloscope displays eye-diagrams, patterns, or
pulses with very high temporal resolution. It is therefore a useful tool for
studying and characterizing very high bit-rate systems or very fast events
like short pulses, where the bandwidth of ordinary electrical sampling
oscilloscopes is not sufficient.
The instrument can measure a number of amplitude modulation formats,
such as:
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non-return-to-zero (NRZ)
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different kinds of return-to-zero (RZ) formats (for example chirped RZ
(CRZ) and carrier suppressed RZ (CSRZ))
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other formats, such as duo-binary transmission (DBT).
Since only the amplitude of the signal is measured, the system cannot
directly measure the optical phase. By placing a delay interferometer
before the scope, you can also handle phase modulated formats like
differential phase shift keying (DPSK).
A number of measurement tools are included in the software for
characterizing eye-diagrams and waveforms, such as:
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ultra-low timing jitter
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rise and fall times
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extinction ratio (ER)
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and signal-to-noise ratio (SNR), etc.
Functions for waveform averaging, histograms and color grade, are also
included.