Lock a DFB/DBR laser through its ESP current-modulation output. This card requires a measured external modulation response and an exclusive, fresh CLD bias interlock.
The owner acquires the wavelength with bounded DAC changes, enables a small native PI correction, and continues through temporary read gaps within the configured deadline. Stop disables PI at the verified fixed reference; it preserves the waveform generator and TEC settings.
Calibration, native gains and current limits belong to the assigned device. An uncommissioned device remains blocked.