Issues on XFP 10G

Hi,

I receive a lot o this issues:

Apr 24 11:57:48 FIMX480-re0 fpc5 XETH(5/0) link 4 SFP laser bias current low alarm set
Apr 24 11:57:54 FIMX480-re0 fpc5 XETH(5/0) link 4 SFP laser bias current low alarm cleared
Apr 24 12:00:07 FIMX480-re0 fpc5 XETH(5/0) link 4 SFP laser bias current low alarm set
Apr 24 12:00:13 FIMX480-re0 fpc5 XETH(5/0) link 4 SFP laser bias current low alarm cleared
Apr 24 12:03:54 FIMX480-re0 fpc5 XETH(5/0) link 4 SFP laser bias current low alarm set
Apr 24 12:04:00 FIMX480-re0 fpc5 XETH(5/0) link 4 SFP laser bias current low alarm cleared

Do you know something to solve this issues ?

I already change cable and optics but the issue is the same.

Thanks !

Ciao !

Marco