10

Table 8. Receiver Optical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Notes

Input Optical Power [Overdrive]

0

dBm, avg

Input Optical Modulation Amplitude

(Peak-to-Peak) 1.0625 Gb/s [Sensitivity]

OMA

31

µW, OMA

Notes 1, 2

Receiver Sensitivity (Optical Input Power)

PRMIN

17

dBm

Stressed Receiver Sensitivity

(OMA) 1.0625 Gb/s

55

µW, OMA

50/125

µm fiber,

Note 3

67

µW, OMA

62.5/125

µm fiber,

Note 3

Stressed Receiver Sensitivity

(OMA) 1.25 Gb/s

-13.5

dBm

50/125

µm fiber

-12.5

dBm

62.5/125

µm fiber

Return Loss

12

dB

Bit Error Rate

BER

10^-12

Loss of Signal – Assert

27.5

µW, OMA

-30

-17.5

dBm, avg

Note 4

Loss of Signal - De-Assert

31

µW, OMA

-17.0

dBm, avg

Note 4

Loss of Signal Hysteresis

0.5

dB

Notes:

1. Input Optical Modulation Amplitude (commonly known as sensitivity) requires a valid 8B/10B encoded input.

2. An OMA of 31

µW is approximately equal to an average power of –17 dBm, avg with an Extinction Ratio of 9 dB.

3. 1.0625 Gb/s stressed receiver vertical eye closure penalty (ISI) min. is 0.96 dB for 50

µm fiber and 2.18 dB for 62.5 µm fiber. Stressed receiver DCD

component min. (at TX) is 80 ps.

4. These average power values are specified with an Extinction Ratio of 9 dB. The loss of signal circuitry responds to valid 8B/10B encoded peak to

peak input optical power, not average power.