MT25EW Bookham Technology, MT25EW Datasheet - Page 7

• Manufacturer Part Number: MT25EW
• Description: 2.5 Gb/s Transmitter Module - Dwdm, 50 & 100GHz
• Manufacturer: Bookham Technology

www.bookham.com
www.bookham.com
Optical characteristics
Typical parameters are RT/SOL, MIN and MAX values are over the operating temperature and power supply range.
Table 5: Optical characteristics
Note 1: Other mean powers available on request
Note 2: Compliant to ITU-T G692 100 GHz grid.
Note 3: Measured with 2^23 10e-10 over 3000 ps/nm fibre.
Note 4: Measured between 20% and 80% of rising/falling edge
Optical eye/jitter characteristics
The filtered optical eye obtained from the transmitter when driven with PRBS NRZ data must remain within the unshaded
area of the SONET/SDH mask shown in Figure 3. A 4th Order Bessel Thompson with a 3dB point at 1.49 GHz is used
to filter the incoming signal before applying the mask. “0.0” and “1.0” on the mask are normalised to “0” and “1” data levels
of the optical output. See Table 5 for Optical Power Outputs.
Figure 3: Optical eye/jitter characteristics
Parameter
Mean Output Power, SOL
Mean Output Power, EOL
Power Variation with Temp
Wavelength
Wavelength Stability
Spectral Width (-20dB)
Side Mode Suppression
Extinction Ratio
Optical rise/fall times
Dispersion Penalty
Normalized
Optical Output
Logic
Level “1”
Logic
Level “0”
0
Time (Unit Intervals)
1527.22
-0.75
+1.5
-0.5
Min
-30
8.2
30
DX = 0.2
150
Typ
1.7
-
1563.05
+2.5
+4.5
0.75
Max
1.0
2.0
30
Thinking optical solutions
Thinking optical solutions
dBm
dBm
Unit
nm
pm
nm
1
dB
dB
dB
dB
ps
1+Y
1
1-Y
-Y
Y
0
Note 1
Note 2
Note 4
Note 3
Notes