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D2547P886 Datasheet PDF - Agere Systems

Part Number D2547P886
Description Wavelength-Selected High-Power D2587P-Type (with Wavelength Locker)/D2547P-Type Isolated DFB Laser Modules
Manufacturers Agere Systems 
Logo Agere Systems Logo 

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D2547P886 datasheet, circuit
Data Sheet, Rev. 2
July 2001
Wavelength-Selected High-Power D2587P-Type (with
Wavelength Locker)/D2547P-Type Isolated DFB Laser Modules
Applications
s Telecommunications:
— Dense WDM
— SONET/SDH OC-192/STM-64
— Extended and ultralong reach
— Undersea systems
s Digital video
Featuring wavelength selection and locking capabilities, the
D2587P Laser Module is ideally suited for use with external
lithium niobate modulators, and in high-power (20 mW) appli-
cations.
Features
s High-performance, multiquantum-well (MQW),
distributed-feedback (DFB) laser
s D2587P-Type is offered on 50 GHz ITU grid
wavelengths ranging from 1528.77 nm—
1610.06 nm
s D2547P-Type is offered on 100 GHz ITU grid
wavelengths ranging from 1528.77 nm—
1610.06 nm
s Polarization-maintaining fiber pigtail
s For use with lithium niobate modulators
s High optical power (20 mW, CW)
s Hermetic, 14-pin package
Description
The D2587P-Type DFB laser module is designed for
use with an external lithium niobate modulator and
also in applications where high power (20 mW) is
required.
The use of an internal wavelength locker greatly
enhances long-term reliability and reduces chirp and
mode dispersion when used in conjunction with LN
modulators at OC-192 data rates.
A companion device, the D2547P high-power DFB
laser module, is also designed for use with a lithium
niobate external modulator, but without the use of an
internal wavelength locker.

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D2547P886 equivalent
Data Sheet, Rev. 2
July 2001
Wavelength-Selected, High-Power D2587P-Type (with Wavelength
Locker)/D2547P-Type Isolated DFB Laser Modules
Characteristics
Minimum and maximum values are testing requirements. Typical values are device characteristics and are results
of engineering evaluations; they are for information purposes only and are not part of the testing requirements.
Table 2. D2587-Type Electrical Characteristics (at 25 °C laser temperature)
Parameter
Threshold Current
Drive Current
Laser Forward Voltage
Monitor Reverse-bias Voltage*
Monitor Current:
Back-facet Monitor
λ Photodiode 1
λ Photodiode 2
Monitor Dark Current
Input Impedance
Filter Slope
Frequency Capture Range
Thermistor Current
Resistance Ratio
Thermistor Resistance
Laser Submount Temperature
TEC Current
TEC Voltage
TEC Capacity
Symbol
ITH
VLF
VRMON
IRMON
IλPD1
IλPD2
ID
ZIN
ITC
RTH
TSET
ITEC
VTEC
T
Test Conditions
LF = 20 mW
LF = 20 mW (CW)
PO = 20 mW (CW)
IF = 0, VRMON = 5 V
Measured from λITU
toward increasing λ and
decreasing λ
TL = 25 °C
TL = 25 °C, TC = 70 °C
TL = 25 °C, TC = 70 °C
TC = 70 °C
* Standard operating condition is 5.0 V reverse bias.
† Ratio of thermistor resistance at 0 °C to thermistor resistance at 50 °C.
Min
3
0.003
0.003
0.003
0.5
15
10
9.1
9.5
20
Typ
15
2
5
0.01
25
9.6
Max
40
165
2.5
10
0.06
0.06
0.06
0.1
8
100
10.1
10.5
35
1.7
2.8
50
Unit
mA
mA
V
V
mA
mA
mA
µA
/nm
GHz
µA
k
°C
A
V
°C
Table 3. D2587-Type Optical Characteristics (at 25 °C laser temperature)
Parameter
Symbol Test Conditions
Min Typ Max
Unit
Peak Optical Output Power
PP
20.0 —
mW
Center Wavelength*
(See Ordering Information, page 9.)
λC
TL = TSET
λC = λITU ± 0.1 nm
1528.77 — 1610.06
nm
Line Width (3 dB full width)
∆λ CW, PF = 20.0 mW
— 2 10
MHz
Side-mode Suppression Ratio
SMSR
CW
35 45 —
dB
Relative Intensity Noise
RIN CW, PF = 20 mW
200 MHz < f < 10 GHz
— –135 dB/Hz
Optical Isolation
— TC = 0 °C to 75 °C 30 — —
Optical Polarization Extinction Ratio
0 °C to 75 °C
20 — —
dB
dB
FM Efficiency
FM fMOD = 30 kHz,
PF = 20 mW
— 100 — MHz/mA
Wavelength Drift (EOL)
∆λC Tested over
25-year lifetime
— — ±2.5 GHz
* Custom wavelengths available.
† The ST ® ferrule key is not aligned to slow axis of fiber. Connector is intended for testing purposes only.
Agere Systems Inc.
5

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Information Total 14 Pages
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