Juniper ACX5448, interface disabled but SFP continue to emit laser

Question

I have a link that is down between two routers (juniper ACX5448), with SFPs present at each end.

By doing a show interfaces diagnostics optics, we can see that the RX are in -Inf dbm

admin@router1> show interfaces diagnostics optics xe-0/0/40
Physical interface: xe-0/0/40
    Laser bias current                        :  37.542 mA
    Laser output power                        :  1.2080 mW / 0.82 dBm
    Module temperature                        :  29 degrees C / 84 degrees F
    Module voltage                            :  3.2930 V
    Laser receiver power                      :  0.0000 mW / - Inf dBm

but by disabling both interfaces, the same command shows that the Tx is not -Inf dbm and the SFP still transmetting laser

admin@router1> show interfaces diagnostics optics xe-0/0/40
Physical interface: xe-0/0/40
    Laser bias current                        :  37.542 mA
    Laser output power                        :  1.2080 mW / 0.82 dBm
    Module temperature                        :  29 degrees C / 84 degrees F
    Module voltage                            :  3.2930 V
    Laser receiver power                      :  0.0000 mW / - Inf dBm

I searched the Juniper documentation, I tried the given commands, I deleted the whole interface...etc but nothing works Do you know if this behavior is normal? Do you have a solution to stop an SFP from emitting?

Thank you