I needed to track down the power of one of our fiber ports – and had a hard time finding how through google-foo. Decided to document it. I did find this link if it helps anyone:

https://community.fortinet.com/t5/FortiSwitch/Troubleshooting-Tip-SFP-SFP-transceivers-port-fiber-link-is-not/ta-p/193940

In this case it was a Fortigate running 7.0.17, and Fortiswitch (Controlled via fortilink) running 7.2.7.

Connect into CLI on the switch through the gui and you can run these commands:

S148FFTF24032152 # get switch modules status port49

Port(port49)
temperature 48.769531 C
voltage 3.343900 volts
alarm_flags 0x0000
warning_flags 0x0000
laser_bias 1.944000 mAmps
tx_power -5.774101 dBm
rx_power -10.074465 dBm
options 0x000F ( TX_DISABLE TX_FAULT RX_LOSS TX_POWER_LEVEL1 )
options_status 0x0008 ( TX_POWER_LEVEL1 )

And there we go!