AK2571 Datasheet, PDF (13/52 Pages) Asahi Kasei Microsystems – Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes

AKM Confidential
AK2571
Figure 3-5
Direct Modulation with Positive Power Supply
LD
AK2571
I-DAC1
IOUT1
I-DAC2
IOUT2
Driver Circuit
Figure-3-6
Direct Modulation with Negative Power Supply
LD-A
AK2571
IOUT2
I-DAC2
LD Module
LD
DC
RF
VEE
IOUT3
I-DAC3
Driver circuit
Figure 3-7
Direct Modulation with Voltage Controlled LD Driver
VEE
Figure 3-8
Direct Modulation with Voltage Controlled LD Driver
AK2571
IOUT1
I-DAC1
IOUT2
I-DAC2
LD
BIAS
Current setting
Voltage
Driner LSI
Modulation
Current setting
Voltage
Figure 3-9
EA Modulation
AK2571
I-DAC2
IOUT2
LD-A
LD
LD module
DC
RF
VEE
I-DAC3
IOUT3
VEE
BIAS
current set
voltage
Driver circuit
Modulation
current set
voltage
Figure 3-10
EA with Voltage Controlled LD Drive
AK2571
I-DAC1
IOUT1
I-DAC2
IOUT2
LD module with
EA modulator
LD-A
LD
EA
EA-A
VEE
I-DAC3
IOUT3
Driver Circuit
VEE
I-DAC1
AK2571
IOUT1
I-DAC2
IOUT2
VEE
I-DAC3
IOUT3
VEE
LD-A
LD
LD module with
EA modulator
EA
EA-A
EA BIAS
current set
voltage
Driner circuit
for EA
modulation
EA Modulation
current set
voltage
<Rev. 0.6E Preliminary>
-13-
2001/11