Summary

• Optical Drivers 2, 4, 6, and 8 show non-linearities.
• Optical Drivers 2, 4, 6, and 8 show gain compression.
• Some Optical Drivers may exhibit gain anti-compression.
• Non-linearities seen for multiple receivers.
• Non-linearities seen for multiple backends.
• Non-linearities arise after IF Rack Attenuators.
• Non-linearities arise before optical fiber - DCR V/F splitter in IF Rack.
• Optical Drivers 3 and 8 behave differently than other Optical Drivers.
• We may be able to calibrate the data with a non-linear calibration fitting scheme.