Data Sheet
February 2001
A1611A/B DFB Laser Modules
Electrical Schematics (continued)
0.01
C7
µ
f
R1
37.5 Ω
SEE PIN 12,
FIGURE 2
3:5
2
3
SEE PIN 12,
FIGURE 2
T1*
R2
37.5 Ω
0.5 pF—2.5 pF
VSWR
1-1238F.b
1 pF—
5 pF
0.01
µ
f
µ
0.01 f
Figure 3b. Resistive-Matched Configuration
FREQUENCY
RESPONSE
Ω
*T1 (75 ) 3:5.
1-1238F.a
Figure 3a. Impedance-Matched Configuration
TEC
CONSTANT
ALARM
1
2
3
4
5
6
7
THERMISTOR
THERMISTOR
J1
39 nH
0.01
3.3
µ
f
1 THERMISTOR
2 THERMISTOR
3 dc LASER BIAS
4 MPD ANODE (CASE GROUND)
5 MPC CATHODE
6 TEC (+)
7 TEC (–)
8 GND
9 GND
10 GND
dc LASER
BIAS
µ
H
200
Ω
MPD ANODE
CASE GROUND
1000 pf
MPC CATHODE
TEC (+)
1000 pf
0.01
µ
f
TEC (–)
µ
0.01 f
1-1238F.c
Note: When ordering the dc set, the following boards are included: alarm board, 9108-004; TEC board, 9028-004; constant current, 9383-004.
Figure 4. dc Set (Lucent Supplied)
4
4
Lucent Technologies Inc.