Dear friend!
The procedure is as follows:
Please run the cfg-get-inpower command to query the input optical power of the board. Run the cfg-get-outpower command to query the input optical power of the board.
Example:

BID: indicates the slot ID.
PORT: indicates the optical port number.
PATH: indicates the channel ID.
INPOWER: input optical power (unit: dBm)
On the Web LCT page, you can view the WDM performance of the device and query the receive and transmit optical power of the board.
Note: Some FIU boards do not support optical power query.
Thank you!