Alcatel 1922 DM0
2.5 Gbit/s Receiver Module
InGaAs APD Pre-Amplifier
Description
Designed to provide high optical
performance for ITU-T G.652 standard
optical fiber and ITU-T G.653 shifted
dispersion fiber.
The Alcatel 1922 DMO consists of a
gold-plated, 14-pin, hermetic package,
containing a reliable InGaAs APD
(Avalanche Photodiode) and a custom
designed preamplifier. A thermistor is
mounted in thermal contact with the
APD metallic support, allowing a
precise evaluation of the device鈥檚
temperature. Optical signal input is via
a single mode optical fiber, coupled to
a 30 碌m diameter InGaAs APD.
Included is an input power monitor, for
applications such as loss of signal alarm
generation. The Alcatel 1900 DMO
module family includes field-proven,
reliable, InGaAsP PIN or APD
photodetector with silicon pre-amplifier
in an hermetically sealed package.
Features
鈥?2.5 GHz bandwidth
鈥?20 nA dark current
鈥?Case operating temperature
- 5 to + 75 擄C
鈥?Operation at 1310 nm & 1550 nm
wavelengths
鈥?Differential Output Voltage
鈥?Photosensitive area 30 碌m diameter
鈥?Space-saving package
鈥?Alcatel Reliability and Qualification
Program for built in quality
Applications
鈥?34 dBm sensitivity
鈥?鈥?5 dBm overload
鈥?60 V breakdown voltage
Used in telecommunications and
datacommunication systems, for
high-speed 2.5 Gbit/s for long distance
applications, the Alcatel 1922 DMO
modules offer a wide case operating
temperature range from - 5 to + 75 擄C.
Part of the Alcatel 1900 DMO family,
the Alcatel 1922 DMO module is
particularly suited for all types of
STM-16 (Long-Haul & Very-Long Haul)
and OC-48 (Long-Reach & Very-Long-
Reach) discrete interfaces. These
modules ensure ease of use and offer
new flexibility to system designers for all
types of transport.
Optical and electrical characteristics
Parameter
Operating temperature
Detection range
Sensitivity
Overload
APD dark current
Condition
Case
BER at 10 ; 10 < M < 12
BER at 10
-10
; M = 3
-10
Symb
Top
l
Pr
Pol
Id
Min
0
1260
-7
Typical
Max
+ 70
1580
- 32
50
0.8
Unit
擄C
nm
dBm
dBm
nA
碌A(chǔ)
V
mA
V
V
KW
dBm
kV/W
kV/W
GHz
V
- 34
-5
20
Vapd = 0.9 * Vbr at 25擄C
at 70擄C
Supply voltage
Supply Current
Output current control voltage
Offset voltage
Thermistor at 25擄C
Optical return loss
Single ended gain
Differential ended gain
Bandwidth
Breakdown voltage
Vsup = 9.5V
Vsup = 9V
Vsup = 9V
Vsup
Isup
Vgate
Vbal
Rth
Orl
Gsin
Gdif
Bw
Vbr
8.5
35
- 2.8
5
9.8
14
28
2.0
45
9
46
- 1.7
7
10.0
19
36
2.5
60
9.5
55
-1
9
10.2
- 27
40
80
72
M = 11 ; Pin = - 35dBm
M = 11 ; Pin = - 35dBm
- 3dB from 50 MHz
Id=10碌A(chǔ)
All electrical characteristics are specified within the overall temperature range.
The typical values are referenced to + 25 擄C.
1
2
