9

Receiver Optical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Reference

Input Optical Power Sensitivity

–18.5

-16

dBm avg.

1

Input Optical Power Saturation

–2

–1

dBm avg.

2

Operating Center Wavelength

830

860

nm

Stressed Receiver Sensitivity

–15.5

-11.3

dBm

3

Stressed Receiver Eye Opening

120

190

ps

4

Return Loss

12

19

dB

5

Signal Detect

Asserted

De-asserted

Hysteresis

-31

0.5

-19

-21

2

-17

dBm avg.

dBm avg.

dB

6

Notes:

eter, input power is equivalent to that provided by an ideal source, i.e., a source with RIN and switching attributes that do not degrade the

sensitivity measurement. All channels not under test are operating receiving data with an average input power up to 6 dB above PIN MIN.

2. Saturation is defined as the average input power that produces at the center of the output swing a receiver output eye width less than 120 ps

with 2.5 dB Inter-Symbol Interference, ISI, (min), 33 ps Duty Cycle Dependent Deterministic Jitter, DCD DJ (min) and 6 dB ER (ER Penalty = 2.23

dB). All channels not under test are operating receiving data with an average input power up to 6 dB above PIN MIN.

power of –10.7 dBm and conditioned with 2.5 dB ISI (min), 33 ps DCD DJ (min), 6 dB ER (ER Penalty = 2.23 dB). All channels not under test are

operating receiving data with an average input power up to 6 dB above PIN MIN.

5. Return loss is defined as the ratio, in dB, of the received optical power to the optical power reflected back down the fiber.

operating with PRBS 23 serial encoded patterns, asynchronous with the channel under test, and an average input power up to 6 dB higher