FTLX8541 Product Specification – November 2007
IV. Optical Characteristics
(V
CC5
= 4.75 V to 5.25 V,
V
CC3
= 3.14 V to 3.47 V,
V
CC aps
= 1.152 V to 1.248 V,
T
C
= 0°C to 70°C, BER
1E-12, Bit Rate 10.3125)
Values
Parameter
Symbol
Unit
min.
typ.
max.
Transmitter
Launch Power in OMA
1)
P
O-OMA
–2.8
–1.5
dBm
Average Launch Power
P
O-Avg
–5
–1
dBm
TDP
TDP
3.9
dB
1)
Center Wavelength Range
λ
C-Tx
840
850
860
nm
1)
RMS Spectral Width
0.4
0.45
nm
σ
I
Extinction Ratio
ER
3
5.5
dB
Relative Intensity Noise
12
OMA
RIN
–128
dB/Hz
Eye Mask Definition
According to IEEE and Fibre Channel
Encircled Flux
EF
at 19 µm
≥86%,
at 4.5 µm
≤
30%
Optical Return Loss Tolerance
ORL
T
12
dB
Average Launch Power of OFF
P
O-OFF
–30
dBm
Transmitter
Receiver
Stressed Receiver Sensitivity in OMA
P
IN-S
–7.5
dBm
2)
Receiver Sensitivity in OMA
P
IN
–11.1
dBm
Average Receive Power
P
IN-max
-1
dBm
Signal Detect Deassert Level
P
SDL
–14.5
dBm
Signal Detect Assert Level
P
SD
–18.0
dBm
Signal Detect Hysteresis
P
SD
0.5
1.5
dB
Receiver Reflectance
REF
RX
–12
dB
Center Wavelength Range
λ
C-RX
840
860
nm
1)
2)
Conforms to IEEE triple trade-off between center wavelength, RMS spectral width and minimum OMA.
Receiver sensitivity, which is defined for an ideal input signal is informative only.
V. General Specifications
Optical Interface Standard Specifications
Standard
IEEE
Fibre
Channel
Fiber Type
62.5 µm MMF
50 µm MMF
62.5 µm MMF
50 µm MMF
50 µm MMF
Minimum Modal Bandwidth at
850 nm (MHz*km)
160
400
200
500
2000
Operating Range
1)
(meters)
2 to 26
2 to 66
0.5 to 33
0.5 to 82
0.5 to 300
Notes:
1) Operating range as defined by IEEE and Fibre Channel standards. Longer reach possible depending upon link implementation.
©
Finisar Corporation – November 28, 2007 Rev. B
Page 7
FINISAR [ FINISAR CORPORATION. ]
