Strange extinction ratio value with SM transceiver

Hi,

I am working with a board hosting a SM 1310 nm 2x10 SFF transceiver. I put a scope capable of receiving an optical link and noticed the max power is about 600uW and the min power is 300uW. This makes a very poor extinction ratio (about 4) instead of the 8.2dB announced on the datasheet. Does anyon have an idea about the reason for this behavior ?

Best regards,

JF

Reply to
jfh
Loading thread data ...

Cabling-Design.com Forums website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.