Alcatel 1912 DMO
2.5 Gbit/s Receiver Module
InGaAs PIN 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 1912 DMO consists of a
gold-plated, 14-pin, hermetic package,
containing a reliable InGaAs PIN
photodiode and a custom designed
pre-amplifier. A thermistor is mounted in
thermal contact with the PIN 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 70 碌m diameter
InGaAs PIN. 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?1 nA dark current
鈥?Case operating temperature
- 40 to + 85 擄C
鈥?Operation at 1310 nm & 1550 nm
wavelengths
鈥?Differential Output Voltage
鈥?Photosensitive area 70 碌m diameter
鈥?Space-saving package
鈥?Alcatel Reliability and Qualification
Program for built in quality
Applications
鈥?- 21 dBm sensitivity
鈥?+ 3 dBm overload
鈥?2.5 GHz bandwidth
Used in telecommunications and data-
communication systems, for high-speed
2.5 Gbit/s for short distance
applications, Alcatel 1912 DMO
modules offer a wide case operating
temperature range from - 40 to + 85擄C.
Part of the Alcatel 1900 DMO family,
the Alcatel 1912 DMO module is
particularly suited for all types of
STM-16 (Intra-office & Short-Haul) and
OC-48 (Short-Reach & Intermediate-
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
PIN dark current
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
Vsup = 9.5V
Vsup = 9V
Vsup = 9V
Condition
Case
BER at 10
BER at 10
-10
-10
Symb
Top
l
Pr
Pol
Id
Vsup
Isup
Vgate
Vbal
Rth
Orl
Gsin
Gdif
Min
0
1260
+2
Typical
Max
+ 70
1580
- 20
20
50
9.5
60
-1
9
10.2
-27
3
6
2.5
Unit
擄C
nm
dBm
dBm
nA
碌A(chǔ)
V
mA
V
V
KW
dBm
kV/W
kV/W
GHz
- 21
+3
1
Vpin = 10 V at 25 擄C
at 70 擄C
8.5
35
-2.5
5
9.8
1
2
Bw
9
-1.7
7
10.0
1.4
2.8
2.0
Popt_in = -25dBm ; F = 50 MHz
Popt_in = -25dBm ; F = 50 MHz
-3dB from 50 MHz
All electrical characteristics are specified within the overall temperature range.
The typical values are referenced to + 25 擄C.
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