[8023-10GEPON] [POWER-BUDGET] 10G PIN sensitivity at ONU
The effective PIN diode sensitivities assumed in the two draft Downstream
power budgets on the Reflector (Effenberger 4/18 and Takizawa 4/30) differ
by 2 dB, when FEC cosnsiderations are eliminated:
Effenberger -22 dBm, including ~4dB of FEC gain, for effective Rx
sensitivity of -18 dBm.
Takizawa -19 dBm, including ~3 dB of FEC gain, for effective Rx sensitivity
of -16 dBm.
Hamano-san told us that the Takizawa budget does not assume a cheaper PIN
than Effenberger, but he said that it rather includes penalties inside the
Rx which must be accounted for.
I would appreciate it if Hamano-san (or some other person familiar with the
issue) to describe in some detail the estimates leading to the -16 dBm
number, so we can try to narrow the gap between these two drafts in this
area to a common number.
Robert
Robert Lingle, Jr.
Fiber Design and Transmission Simulation
OFS Corporate R&D, Atlanta
404-886-3581 (cell)
770-798-5015 (office)