Datasheet

FTLX1371 PRELIMINARY Datacom SFP+ Product Specification – July 2008
© Finisar Corporation - July 25, 2008 DRAFT Rev. A3 Page 6
IV. Optical Characteristics (T
OP
= -5 to 70 °C, V
CC
= 3. 14 to 3.46 Volts)
Parameter Symbol Min Typ Max Unit Ref.
Transmitter
Optical Modulation Amplitude
(OMA)
P
OMA
-4.5 +1.5 dBm
Average Launch Power P
AVE
-6.5 0.5 dBm 1
Peak Launch Power P
MAX
3 dBm
Optical Wavelength
λ
1260 1355
Nm
λ
rms
@1260nm
2.4
λ
rms
@
1260nm-
1300nm
See Figure
5-1
RMS Spectral Width
λ
rms
@
1300nm-
1355nm
4
Nm 2
Optical Extinction Ratio ER 3.5 dB
Optical Eye Mask Margin 0 % 3
Transmitter Waveform Dispersion
Penalty
TWDP 4.7
dB 4
Average Launch power of OFF
transmitter
P
OFF
-30 dBm
Uncorrelated Jitter [rms] Tx
j
0.033 UI
Relative Intensity Noise RIN
12
OMA -128 dB/Hz
<5μm
30
Encircled Flux
<11μm
81
%
Transmitter Reflectance -12 dB
Optical Return Loss Tolerance 20 dB
Receiver
Receiver Overload P
MAX
+1.5 dBm 5
Precursor -6.5
Symmetrical -6.0
Comprehensive Stressed Receiver
Sensitivity (OMA) @ 10.3125Gb/s
Postcursor -6.5
dBm 6
Wavelength Range
λ
C
1260 1355 Nm
Receiver Reflectance R
rx
-12 dB
LOS De-Assert LOS
D
-11 dBm
LOS Assert LOS
A
-30 dBm
LOS Hysteresis 0.5 dB
Notes:
1. Average power figures are informative only, per IEEE802.3aq
2. Maximum RMS spectral width as specified by Figure 3
3. Optical Eye Mask requires the host board to be SFF-8431 compliant. Optical eye mask per IEEE802.3aq.
4. TWDP figure requires the host board to be SFF-8431compliant. TWDP is calculated using the Matlab code
provided in clause 68.6.6.2 of IEEE802.3aq
5. Receiver overload specified in OMA and under the worst comprehensive stressed condition.
6. Conditions of stressed receiver tests per IEEE802.3aq. CSRS testing requires the host board to be SFF-8431
compliant.