V. general specifications, Optical specifications, Optical interface standard specifications – Finisar 10GBASE-LRM X2 User Manual
Page 7

FTLX1341E2 Product Specification – October 2008
© Finisar Corporation – October 2008
Rev B
Page 7
Optical Specifications
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
Peak Launch Power
P
MAX
+3
dBm
Optical Wavelength
λ
1260 1355
nm
λ
rms
@1260nm
2.4 1
λ
rms
@
1260nm-
1300nm
See Figure
2
Spectral Width
λ
rms
@
1300nm-
1355nm
4
nm
Optical Extinction Ratio
ER
3.5 dB
Optical Eye Mask Margin
0 %
2
Transmitter Waveform Dispersion
Penalty
TWDP
4.7
dB 3
Average Launch Power of OFF
Transmitter
P
OFF
-30
dBm
Uncorrelated Jitter [rms]
Tx
j
0.033
UI
Relative Intensity Noise
RIN
20
OMA
-128
dB/Hz
<5
μm
30
Encircled Flux
<11
μm
81
%
Tramsmitter Reflectance
-12
dB
Receiver
Overload in OMA
+1.5
dBm
4
Precursor -6.5
Symmetrical -6.0
Comprehensive Stressed Receiver
Sensitivity (OMA) @ 10.3125Gb/s
Postcursor
-6.5
dBm
Optical Center Wavelength
λ
C
1260 1355
nm
Receiver Reflectance
R
rx
-12
dB
Signal Detect Deassert Level
P
SDD
-14.4
dBm
Signal Detect Assert Level
P
SDA
-25.0 dBm
Signal Detect Hysteresis
P
SDH
0.5 1.5 dB
Notes:
1)
Maximum RMS spectral width as specified by Figure 68-3 in IEEE802.3aq -2006
2)
Optical eye mask per IEEE802.3aq -2006.
3)
TWDP is calculated using the Matlab code provided in clause 68.6.6.2 of IEEE802.3aq -2006
4)
Receiver overload specified in OMA and under the worst comprehensive stressed condition.
V. General Specifications
Optical Interface Standard Specifications
Fiber Type
850nm OFL Bandwidth
Symbol Distance
[1]
Units
“FDDI” 160MHz/km
220
62.5
μm
OM1 200MHz/km
Lmax
220
m
400MHz/km 100
OM2 500MHz/km
220
50
μm
OM3 2000MHz/km
Lmax
220
m
Notes:
1)
Operating range as defined by IEEE standards. Longer reach possible depending upon link implementation.