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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 1954
DMC consists of a reliable III-V APD
photodetector integrated in an
hermetic singlemode pigtailed coaxial
module with connector.
The entire Alcatel 1900 DMC family
includes field-proven, reliable,
InGaAsP PIN photodetector with or
without silicon preamplifier or InGaAsP
Avalanche Photodetector (APD), in an
hermetically sealed coaxial package.
Features
• 0.8 A/W typical responsitivity
• Operation at 1310 nm, 1550 nm
extended to 1620 nm wavelengths
• Case operating temperature
from - 40 to + 85 °C
• 3 GHz minimum bandwidth
• Bit rate from 100 Mbits/s up to 2.7
Gbits/s
• Low dark current
• Low capacitance
• Space-saving package
• Alcatel Reliability and Qualification
Program for built in quality
Applications
Used in telecommunications and
datacommunication systems, from
medium to high speed for Long-Reach
and Ultra-Long-Reach applications,
Alcatel 1954 DMC modules offer a
wide case operating temperature
range from - 40 to + 85 °C.
Part of the Alcatel 1900 DMC family,
the Alcatel 1954 DMC module is
particularly suited for all types of Long-
Haul, Metro and Access optical links
such as :
Fiber In The Loop (FTTB, FTTC, FTTH...)
Digital transport links
Private optical networks
Intra and interoffice links
Optical characteristics
Condition Symb Min Typ Max Unit
Detection range λ1260 1620 nm
Responsitivity 1310 nm, M
= 1, PIN = 1 µW Rλ0.75 0.8 A/W
1550 nm, M
= 1, PIN = 1 µW 0.75 0.8
1610 nm, M
= 1, PIN = 1 µW 0.65 0.7
Breakdown voltage ID=10µA VBR 30 75 V
Dark current 0,9 VBR, TC = 25 °C ID25 70 nA
0,9 VBR, TC = 75 °C ID75 0.8 µA
0,9 VBR, TC = 85 °C ID85 1.7 µA
Multiplied Dark current M = 1, TC = 25 °C IDM25 15 nA
M = 1, TC = 75 °C IDM75 160 nA
M = 1, TC = 85 °C IDM85 340 nA
Cut-off frequency Note 1 FC3.0 3.5 GHz
Capacitance F = 1 MHz, VR
=3 V CT0.6 pF
Optical return loss 30 dB
All parameters are specified End-of-Life within the overall relevant operating temperature range.
The typical values are referenced to + 25 °C, nominal power supply, beginning of life.
Note 1 : M = 10, RL = 50 Ω, - 3 dB from 500 kHz with 5 mm recommended pin length.
A
lcatel 1954 DMC
Pigtailed Coaxial Module
2.5 Gbit/s APD Detector
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Absolute maximum ratings
Parameter Cond Symbol Min Max Unit
Optical Peak Power M < 3 PMAX 4mW
Photodetector reverse current IR2mA
Photodetector forward current IF10 mA
Storage temperature TSTG - 40 + 85 °C
Operating temperature TOP - 5 + 75 °C
- 40 + 85
Stresses in excess of the absolute Maximum Ratings may cause
permanent damage to the device. These are absolute stress ratings only.
Mechanical details
Pin out
N° Symb Description
1GNDCase Ground
2 VCC Photodiode Cathode
3 APD Photodiode Anode
January 2002
Copyright © 2002
Alcatel Optronics
Customized versions are available for
large quantities.
Performance figures contained in this
document must be specifically
confirmed in writing by Alcatel
Optronics before they become
applicable to any particular order or
contract. Alcatel Optronics reserves the
right to make changes to the products
or information contained herein
without notice.
For additional information, contact
your Alcatel Optronics Account
Manager, or the following :
INTERNET
http ://www.alcatel.com/optronics
E-MAIL
optronics@alcatel.com
EUROPE
France : (+33) 1 64 49 47 00
UK : (+44) 1506 42 60 00
USA
Chantilly – VA : (+1) 703-679-6715
Plano – TX : (+1) 972-477-54 53
CANADA
Gatineau : (+1) 819 243 3755
ASIA - PACIFIC
Japan : (+81)-3-5302-4341
China : (+86) 755 6981 471
Ordering information
Alcatel 1954 DMC
Temperature Part Number
range(°C)
- 5…+ 75 3CN 00377 D#
- 40…+ 85 3CN 00362 D#
Connectors options
3CN xxxxx DA → FC/PC
DB → SC/PC
DN → MU
Standards
ITU-T G.652 optical fiber
ITU-T G.653 shifted dispersion fiber
IEC 68-2 and MIL STD 883 environment
ATTENTION
OBSERVE
PRECAUTIONS FOR
HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE DEVICES
