FWDM-1629-XX DWDM SFP Preliminary Product Specification – February 2005
F i n i s a r
Finisar Corporation
PRELIMINARY and Confidential
Page 6
Rev C, February 2005
V.
Optical Parameters
Parameter
Symbol
Min
Typ
Max
Units Notes/Conditions
TRANSMITTER CHARACTERISTICS
Center Wavelength Spacing
100
GHz Corresponds to
approximately 0.8 nm
Spectral Width
∆λ
20
0.2
0.3
nm
Full width, -20dB from
max
Transmitter Center Wavelength –
End of Life
λ
c
X - 100
X
X + 100
pm
X = specified center
wavelength
Transmitter Center Wavelength –
Start of Life
λ
c
Y - 25
Y
Y + 25
pm
Y = X – 60pm
Side Mode Suppression Ratio
(SMSR)
SMSR
30
dB
Modulated
Optical Rise/Fall Time
t
r
/ t
f
200
ps
Unfiltered, 80% -20%
Transmitter Optical Output Power
P
out
0
+4
dBm Average power coupled
into single mode fiber
Transmitter Extinction Ratio
OMI
9.0
dB
Transmitter Eye Opening
40
%
IEEE 802.3 and Fibre
Channel Eye Mask
Margin
Relative Intensity Noise
RIN
-120
dB/Hz
Dispersion Penalty at 180km
3.0
dB
3600ps/nm. See Note 3.
RECEIVER CHARACTERISTICS
Optical Input Wavelength
P
in
1520
1570
nm
Receiver Jitter Generation
100
ps
Peak to peak, -25 dBm
Rx power
Optical Input Power
(BER < 10
-9
)
P
in
-32
-9
dBm 1.25 Gb/s w/
PRBS 2
7
-1
Optical Input Power
(BER < 10
-12
)
P
in
-30
-9
dBm 1.25 Gb/s w/
PRBS 2
7
-1
Optical Input Power –
Receiver Damage Threshold
6
dBm
Receiver Reflectance
R
RX
-27
dB
OSNR Limit
OSNR
min
20
dB
OSNR Penalty
2.0
dB
For OSNR = OSNR
min.
See Note 4.
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.
Dispersion penalty is measured in loop back with OSNR set at Rx < 28 dB. Data rate and pattern used same
as specified for Optical Input Power. Dispersion penalty is measured at BER = 10
-10
4.
OSNR penalty is measured in loop back. Data rate and pattern used is same as specified for Optical Input
Power. OSNR penalty is measured at BER = 10
-10
