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FWLF1631R Datasheet, PDF (6/10 Pages) Finisar Corporation. – Long-Reach DWDM SFP Transceiver
FWLF1631Rxx DWDM SFP Product Specification – July 2013
Finisar
V. Optical Parameters
Parameter
Symbol Min Typ Max Units Notes/Conditions
TRANSMITTER CHARACTERISTICS
Center Wavelength Spacing
Modulated Spectral Width
Transmitter Center Wavelength –
End of Life
Transmitter Center Wavelength –
Start of Life
Side Mode Suppression Ratio
(SMSR)
Optical Rise/Fall Time
Transmitter Optical Output Power
Transmitter Extinction Ratio
100
GHz Corresponds to
approximately 0.8 nm

0.2 0.3
nm Full width, -20dB from
max. See note 3
c X - 100 X X + 100 pm X = specified center
wavelength
c Y - 25 Y Y + 25 pm Y = specified center
wavelength
SMSR 30
dB Modulated
tr / tf
Pout
+3
OMI 8.2
160 ps Unfiltered, 80% -20%
+7 dBm Average power coupled
into single mode fiber
dB
Transmitter Eye Opening
Transmitter Jitter Generation
Tolerable Back Reflection
10
BR
% OC-48 eye mask margin
75 mUI Parameters per GR-2532
section 5.6 for OC-48 B
-14 dB See note 4
Relative Intensity Noise
RIN
-120 dB/Hz
Dispersion Power Penalty at
DPP
3200ps/nm
3.0 dB See Note 5
RECEIVER CHARACTERISTICS
Optical Input Wavelength
Receiver Jitter Generation
Optical Input Power
(BER < 10 -12)
Optical Input Power –
Receiver Damage Threshold
Receiver Reflectance
Dispersion Noise Penalty at
3200ps/nm
Pin
1520
Pin
-28
RRX
DNP
1570
75
-9
+6
nm
mUI
dBm
dBm
Parameters per GR-2532
section 5.6 for OC-48 B
2.5 Gb/s w/
PRBS 2 23 -1
-27 dB
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
 Finisar Corporation
Rev C1, July 2013
Page 6