To the best of my knowledge,
Cisco's short reach optics, 2km, 1310 nm, SM fiber, transmit power -3 dBm (max) -10 dBm (min), receive sensitivity -3 dBm (max) -18 dBm (min).
Cisco's intermediate reach optics 15km, 1310 nm, SM fiber, transmit power 0 dBm (max) -5 dBm (min), receive sensitivity -0 dBm (max) -18 dBm (min).
Cisco's long reach 2 optics 80km, 1550 nm, SM fiber, transmit power 3 dBm (max) -2 dBm (min), receive sensitivity -9 dBm (max) -28 dBm (min).