Datasheet

FWLF1631Rxx DWDM SFP Product Specification – July 2013 F i n i s a r
 Finisar Corporation Page 6
Rev C1, July 2013
V. Optical Parameters
Parameter
Symbol
Min
Typ
Max
Units
Notes/Conditions
TRANSMITTER CHARACTERISTICS
Center Wavelength Spacing
100
GHz
Corresponds to
approximately 0.8 nm
Modulated Spectral Width


0.2
0.3
nm
Full width, -20dB from
max. See note 3
Transmitter Center Wavelength –
End of Life

c
X - 100
X
X + 100
pm
X = specified center
wavelength
Transmitter Center Wavelength –
Start of Life

c
Y - 25
Y
Y + 25
pm
Y = specified center
wavelength
Side Mode Suppression Ratio
(SMSR)
SMSR
30
dB
Modulated
Optical Rise/Fall Time
t
r
/ t
f
160
ps
Unfiltered, 80% -20%
Transmitter Optical Output Power
P
out
+3
+7
dBm
Average power coupled
into single mode fiber
Transmitter Extinction Ratio
OMI
8.2
dB
Transmitter Eye Opening
10
%
OC-48 eye mask margin
Transmitter Jitter Generation
75
mUI
Parameters per GR-253
2
section 5.6 for OC-48 B
Tolerable Back Reflection
BR
-14
dB
See note 4
Relative Intensity Noise
RIN
-120
dB/Hz
Dispersion Power Penalty at
3200ps/nm
DPP
3.0
dB
See Note 5
RECEIVER CHARACTERISTICS
Optical Input Wavelength
P
in
1520
1570
nm
Receiver Jitter Generation
75
mUI
Parameters per GR-253
2
section 5.6 for OC-48 B
Optical Input Power
(BER < 10
-12
)
P
in
-28
-9
dBm
2.5 Gb/s w/
PRBS 2
23
-1
Optical Input Power –
Receiver Damage Threshold
+6
dBm
Receiver Reflectance
R
RX
-27
dB
Dispersion Noise Penalty at
3200ps/nm
DNP
3.0
dB
See Note 6
Notes:
1. Parameters are specified over temperature and voltage, at end of life unless otherwise noted.
2. All parameters are measured on a Finisar SFP Evaluation Card unless otherwise noted.
3. For accurate 
20
measurements, an OSA with a resolution band width of ≤ 20pm is recommended.
4. Tolerable back reflection is the max back reflection level at which the power penalty will be <1dB.
5. Dispersion power penalty is measured in loop back with OSNR set to 28 dB. Data rate and pattern used same as specified
for Optical Input Power. Dispersion power penalty is the difference in Rx power at a BER of 10
-12
for 0ps/nm and
3200ps/nm.
6. Dispersion noise penalty is measured in loop back with Rx power set between -9dBm and -22dBm. Data rate and pattern
used same as specified for Optical Input Power. Dispersion noise penalty is the difference in OSNR at a BER of 10
-12
for
0ps/nm and 3200ps/nm