S-55DLC80D SFP Module Questions

Hi,

I’d like to use this SPF module to measure optical power and get the Rx?tx power over DDM. I’m looking for a technical datasheet. Specific questions:

What is the dB resolution of the measured power? I need 0.1dB or better.

What is the refresh rate of the dB measurements?

I have no need to transmit / receive data, just measure power. Does the module transmit just by pulling the TX_DISABE pin low, of do I need to feed it a data stream (perhaps a square wave?) on the TX input?

Thank you.