Low-jitter, high quality waveform
The PPG module supports low-jitter and high-quality waveforms. The output amplitude can be customized to application needs.
Low-jitter: 700 fs rms (typ.)
High amplitude: 0.5 Vp-p to 3.5 Vp-p
Versatile pattern generation
• Pseudorandom Patterns (PRBS)
All PRBS patterns required by standards are supported up to PRBS
231 – 1.
2n – 1 (n = 7, 9, 10, 11, 15, 20, 23, 31)
• Zero Substitution Pattern
Consecutive 0 s and 1 s patterns can be added to PRBS patterns for CDR tolerance tests.
2n, 2n – 1 (n = 7, 9, 10, 11, 15, 20, 23)
• Data Pattern
Patterns required by each application, such as CJTPAT, CJPAT and K28.5 can be created flexibly.
256 Mbits/ch max. (Steps: 1 bit)
• Mixed Pattern
A mixed data and PRBS pattern can be output. At creation of SONET/SDH frames, adding a PRBS231 – 1, etc., pattern to the payload supports setting of a continuous pattern across frames.
The DQPSK and DP-QPSK pre-code signal generation are supported. Hardware-based generation of modulation signals produces pure PRBS31 signals without pattern length restrictions.
• Burst Signals
Application evaluation using burst signals, such as optical loop test and transmission test using quantum noise technology are supported.