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LC25ET Datasheet(PDF) 2 Page - Bookham, Inc.

Part No. LC25ET
Description  2.5 Gb/s Buried Het 4x100GHz Tunable Laser with Etalon Stabilisation and extended reach option
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Maker  BOOKHAM [Bookham, Inc.]
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LC25ET Datasheet(HTML) 2 Page - Bookham, Inc.

   
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Data Sheet
2
Parameters
Parameter
Conditions
Min
Typ
Max
Unit
Threshold current (I
th)
10
22
mA
Slope efficiency
2 mW
0.04
0.09
mW/mA
3 mW
0.06
0.13
mW/mA
4 mW
0.08
0.17
mW/mA
High Power
[1]
0.143
0.43
mW/mA
RF input reflection coef (S
11)
[2]
-10
dB
Forward voltage
1.3
1.8
V
Peak wavelength (
λ
p)
[3]
1527
1563
nm
Dispersion penalty
[4]
2
dB
Time averaged spectral line width
-20 dB
0.4
0.6
nm
Side-mode suppression
34
40
dB
Optical rise/fall time
[5]
125
ps
Monitor photo currents
40
250
360
µA
Monitor dark current
50
nA
Thermistor resistance
4.07
20.7
k
Heatpump current
∆T = 64°C
1000
mA
Heatpump voltage
∆T = 64°C
2.4
V
Change of
λ with laser temp.
8 to 50°C
0.09
nm/°C
Optical spectral window
Over life & temperature
-9
+9
GHz
including chirp
[6]
[1] The high power version provides 10 mW peak output power for 175 km applications and 7 mW peak output power for
360 km applications.
[2] 50
measurement system, f = dc - 3 GHz.
[3] Submount temperature between 0°C & 40°C start of life to achieve required
λ
p.
[4] Dispersion penalty is compliant to a link length of 175 km or 360 km using an extinction ratio of 10dB. Fibre dispersion
characteristics are derived from the following equation:
where So =0.092 ps/(nm2 km) and
λ
0 = 1302 nm.
[5] Measurements determined from 20 - 80% Pk - Pk.
[6] For more information on wavelength control and drift over life refer to application note DR1670.
)
.
/(
)
(
4
)
(
3
4
0
km
nm
ps
So
D
λ
λ
λ
λ−
=


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