P H O T O D I O D E
InGaAs APD
G8931-04
Time response characteristics compatible with SONET and G/GE-PON
The G8931-04 is an InGaAs APD that delivers a high-speed response of 2.5 Gbps required for trunk line optical fiber communications such as
SONET (synchronous optical network), G-PON (gigabit-capable passive optical network) and GE-PON (gigabit ethernet-passive optical network).
Features
Applications
High-speed response: 2.5 Gbps
Low dark current
Optical fiber communications
High-speed data links
Low capacitance
Active area: φ0.04 mm
High sensitivity
ꢀ General ratings
Parameter
Active area
Symbol
-
Value
φ0.04
Unit
mm
ꢀ Absolute maximum ratings
Parameter
Forward current
Reverse current
Operating temperature
Storage temperature
Symbol
Value
2
2
Unit
mA
mA
°C
F
I
R
I
Topr
Tstg
-40 to +85
-55 to +125
°C
ꢀ Electrical and optical characteristics (Ta=25 °C)
Parameter
Spectral response range
Peak sensitivity wavelength
Photo sensitivity
Symbol
Condition
Min.
-
-
0.8
40
-
Typ.
0.95 to 1.7
Max.
-
-
Unit
µm
µm
A/W
V
V/°C
nA
λ
λp
S
1.55
0.9
-
0.11
40
4
λ=1.55 µm, M=1
-
BR
D
Breakdown voltage
Temperature coefficient of V
Dark current
V
I =100 µA
60
0.16
65
-
BR
Γ
-40 to +85 °C
D
R
BR
I
V =V
× 0.9
-
3
Cut-off frequency
fc
M=10
GHz
R
BR
V =V
× 0.9
Terminal capacitance
Ct
-
0.35
0.45
pF
f=1 MHz
ꢀꢀSpectral response
ꢀꢀ Dark current vs. reverse voltage
(Typ. Ta=25 ˚C, M=1)
(Typ. Ta=25 ˚C)
1.0
1 mA
100 µA
10 µA
1 µA
PHOTOCURRENT
0.8
0.6
0.4
0.2
0
100 nA
10 nA
1 nA
DARK CURRENT
100 pA
10 pA
1 pA
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0
10
20
30
40
50
WAVELENGTH (µm)
REVERSE VOLTAGE (V)
KAPDB0120EA
KAPDB0123EA
1