Data Sheet
September 1999
1241/1243/1245-Type Uncooled Laser Transmitter
Offering multiple output power options and SONET/SDH com-
patibility, the 1241/1243-Type Uncooled Laser Transmitter is
manufactured in a 20-pin, plastic DIP with a single-mode fiber
pigtail.
Features
■
Backward compatible with 1227/1229/1238-Type
Laser Transmitters
■
Space-saving, self-contained, 20-pin DIP
■
Uses field-proven, reliable InGaAsP MQW laser
■
Requires single 5 V power supply
■
SONET/SDH compatible
■
Uncooled laser with automatic optical power con-
trol for constant output power over case tempera-
ture range
■
No thermoelectric cooler required; reduces size
and power consumption
■
Uses low-power dissipation CMOS technology
■
Qualified to meet the intent of Bellcore reliability
practices
■
Operates over data rates to 1062.5 Mbits/s (NRZ)
■
Operation at 1.3
µ
m or 1.55
µ
m wavelength
■
Typical average output power options of –11 dBm,
–8 dBm, –5 dBm, –2 dBm, and 0 dBm
■
ECL compatible, differential inputs
■
Operating temperature range of –40
°
C to +85
°
C
■
Transmitter-disable option
Applications
■
Telecommunications
— Inter- and intraoffice SONET/ITU-T SDH
— Subscriber loop
— Metropolitan area networks
■
High-speed data communications
— Fibre channel (FC-0)
2 Lucent Technologies Inc.
Data Sheet
1241/1243/1245-Type Uncooled Laser Transmitter September 1999
Description
The 1241/1243/1245-type Laser Transmitters are
designed for use in transmission systems and high-
speed data communication applications. Used in
intraoffice and intermediate-reach applications, the
transmitters are configured to operate at SONET rates
up to OC-12, as well as at ITU-T synchronous digital
hierarchy (SDH) rates up to STM-4. Specific versions
are also capable of operating up to 1062.5 Mbits/s.
The transmitter meets all present Bellcore GR-253-
CORE requirements, ANSI T1.117-1991 SONET sin-
gle-mode, and the ITU-T G.957 and G.958 recommen-
dations. (See Table 5 to select transmitters for the
various SONET/SDH segments.)
The transmitter requires a single power supply (+5 V or
–5 V) and operates over data rates of 1 Mbits/s to
622 Mbits/s (NRZ). Automatic power control circuitry
provides constant optical output power over the operat-
ing case temperature range. The automatic power con-
trol circuitry also compensates for laser aging. The
optical wavelength tolerance at 25
°
C is 1310 nm. The
temperature coefficient of wavelength for 1.3
µ
m Fabry-
Perot transmitters (1241-Type) is approximately
0.4 nm/
°
C. The temperature coefficient of wavelength
for 1.3
µ
m and 1.55
µ
m distributed-feedback (DFB)
transmitters (1243/1245-Type) is approximately
0.1 nm/
°
C.
Transmitters are available for operation over sever al dif-
ferent temperature ranges from –40
°
C to +85
°
C. Man-
ufactured in a 20-pin DIP, the transmitter consists of a
hermetic, InGaAs laser and a single CMOS driver IC.
The low-power consumption circuit provides modula-
tion, automatic optical output power control, and data
reference. The module can be driven by either ac- or
dc-coupled data in single-ended or differential configu-
ration. (See Recommended User Interfaces section for
typical connection schemes.) The laser bias and back-
facet monitor currents are electrically accessible for
transmitter performance monitoring. The transmitter
optical output may be disabled by a logic-level input.
Functional Overview
Transmitter Circuit Description and
Operation
Figure 1 shows a simplified schematic of the transmit-
ter; pin information is listed in Table 1. The laser within
the transmitter is driven by a single CMOS integrated
circuit, which provides the input data signal reference
level with automatic, temperature-compensated laser
bias, and modulation-current control. A back-facet pho-
todetector diode within the laser module provides an
indication of the laser's average optical output power.
The back-facet diode current is accessible as a voltage
proportional to photocurrent through pins 17 and 19 on
the transmitter. The back-facet diode also forms part of
the feedback control circuit, which helps maintain con-
stant output power.
The laser bias current is accessible as a dc-voltage by
measuring the voltage developed across pins 2 and 4
of the transmitter. Dividing this voltage by 10
Ω
will
yield the value of the laser bias current. This value will
change up or down in response to operating tempera-
ture, power supply voltage, data pattern, and laser
aging characteristics.
Table 1. Pin Descriptions
*Pins designated as no user connection should not be tied to
ground or any other circuit potential.
†Laser back-facet and bias monitor functions are customer-use
options that are not required for normal operations of the trans-
mitter. They are normally used during manufacture and for
diagnostics.
Pin Number Name
1 No user connection
*
2 Laser bias monitor (+)
†
3 No user connection
*
4 Laser bias monitor (–)
†
5V
EE
6V
CC
7 Transmitter disable
8V
CC
9V
CC
10 No user connection
†
11 Case ground (RF ground)
12 V
CC
13 Case ground (RF ground)
14 V
EE
15 DATA
16 DATA
17 Laser back-facet monitor (–)
*
18 V
CC
19 Laser back-facet monitor (+)
*
20 No user connection
†
Lucent Technologies Inc. 3
Data Sheet
September 1999 1241/1243/1245-Type Uncooled Laser Transmitter
Functional Overview
(continued)
1-868(C).h
Figure 1. Simplified Transmitter Schematic Input Data
LASER BACK-FACET MONITOR VOLTAGE
15 kΩ
(2)
(4)
(+)
(–) 15 kΩ
LASER BIAS MONITOR VOLTAGE
15 kΩ
(19)
(17)
(+)
(–) 15 kΩ
BAND GAP
REFERENCE AUTOMATIC POWER
CONTROL CIRCUITRY
INPUT DATA
COMPARATOR
MODULATION
CIRCUITRY
TEMPERATURE
SENSOR
t
IBF
IBIAS
VCC
LASER
BACK-FACET
DETECTOR FIBER PIGTAIL
10 Ω
DATA (16)
(7)
(15)
TRANSMITTER
DISABLE
VCC – 1.3 V
30 kΩ
30 kΩ
DATA
IMOD
Input Data
Data enters the transmitter through a comparator.
These inputs have internal pull-down resistors to a v olt-
age reference that is 1.3 V below V
CC
. This configura-
tion allows the transmitter to be driven from either a
single-ended or a differential input signal. Since the
input is a comparator instead of a gate, the absolute
input signal levels are not important when the inputs
are driven differentially. When driven single-ended,
however, the input signal voltage should be centered
around V
CC
– 1.3 V to eliminate pulse-width distortion.
With a single-ended input, either input can be used and
the unused input can be left as an open circuit due to
the internal reference shown in Figure 1. The optical
output signal will be in the same sense as the input
data—an input logic high turns the laser diode on and
an input logic low turns the laser diode off. However, if
the negative input is used with a single-ended data
input signal, the optical signal will be the complement
of the data input signal.
The differental inputs of the 1241 Gbit versions are ter-
minated internally with 100
Ω
between the DATA and
DATA inputs.
Minimum Data Rate
Because the modulation and bias control circuitry are
influenced by the input data pattern, the standard
transmitter cannot be used in burst-mode type applica-
tions. For b urst-mode applications , please contact y our
Lucent Account Manager. The minimum data rate
(pseudorandom data, 50% average duty cycle) for the
1241/1243/1245-Type Transmitters is approximately
1 Mbit/s.
4 Lucent Technologies Inc.
Data Sheet
1241/1243/1245-Type Uncooled Laser Transmitter September 1999
Functional Overview
(continued)
Since most applications operate at very high data
rates, high-frequency design techniques need to be
used to ensure optimum performance from the trans-
mitter and interfacing circuitry. Input signal paths
should be kept as short and as straight as possible; dif-
ferential signal lines should be equal in length, and
controlled-impedance stripline or microstrip construc-
tion should alwa ys be used when laying out the printed-
wiring board traces for the data lines. The Recom-
mended User Interfaces section of this data sheet
shows several methods of interfacing to the transmitter.
Power Supplies
The transmitter is configured f or operation from either a
single +5 V po wer supply or a single –5 V pow er supply.
F or positive po wer supply operation, connect Vcc to the
+5 V power supply and connect V
EE
to ground or circuit
common. For operation from a –5 V power supply, con-
nect V
CC
to ground and connect V
EE
to the –5 V power
supply. Whichever option is chosen, the V
CC
or V
EE
con-
nection to the transmitter should be well filtered to pre-
vent power supply noise from interfering with
transmitter operation.
Transmitter Specifications
Optical Output Power
During manufacture, the optical output power of every
transmitter is tuned to the typical value specified in the
data sheet for that particular transmitter code. The tun-
ing is performed at room ambient and a power supply
voltage of 5 V. The minimum and maximum values
listed in the data sheet for each code group reflect the
worst-case limits that the transmitter is expected to
operate within over its lifetime and over the allowed
power supply and the operating temperature range.
Every transmitter shipped receives a final test, which
includes a SONET eye-mask test at either the OC-3
(STM-1) data rate of 155.52 Mbits/s, the OC-12
(STM4) data rate of 622.08 Mbits/s, or the fibre channel
FC-0 data rate of 1062.5 Mbits/s. The eye-mask test is
meant to examine the performance of the transmitter's
output optical wa v eform relativ e to a minimum data pat-
tern eye opening.
Connector Options
The standard optical fiber pigtail is 8
µ
m core single-
mode fiber having a 0.036 in. (914
µ
m) diameter tight-
buffered outer-jacket. The standard length is 39 in.
±
4 in. (1 m
±
10 cm) and can be terminated with either
an SC or FC-PC optical connector. Other connector
options ma y be av ailable on special order . Contact your
Lucent Account Manager for ordering information.
Handling Precautions
CAUTION: This device is susceptible to damage as
a result of electrostatic disc harge (ESD).
Take proper precautions during both
handling and testing. Follow guidelines
such as JEDEC Publication No. 108-A
(Dec. 1988).
Although protection circuitry is designed into the
device, take proper precautions to avoid exposure to
ESD. Lucent employs a human-body model (HBM) for
ESD-susceptibility testing and protection-design evalu-
ation. ESD voltage thresholds are dependent on the
critical parameters used to define the model. A stan-
dard HBM (resistance = 1.5 k
Ω
, capacitance = 100 pF)
is widely used and, therefore, can be used for compari-
son purposes. The HBM ESD withstand voltage estab-
lished for the 1241-/1243-Type Transmitter is
±
1000 V.
Transmitter Processing
The transmitter can withstand normal wave-soldering
processes. The complete transmitter module is not her-
metically sealed; therefore, it should not be immersed
in or sprayed with any cleaning solution or solvents.
The process cap and fiber pigtail jacket deformation
temperature is 85
°
C. Transmitter pins can be wave-
soldered at maximum temperature of 250
°
C for
10 seconds.
Installation Considerations
Although the transmitter features a robust design, care
should be used during handling. The optical connector
should be kept free from dust, and the process cap
should be kept in place as a dust cover when the
device is not connected to a cable. If contamination is
present on the optical connector, canned air with an
extension tube can be used to remove any debris.
Other cleaning procedures are identified in the techni-
cal note,
Cleaning Fiber-Optic Assemblies
(TN95-
010LWP).
Lucent Technologies Inc. 5
Data Sheet
September 1999 1241/1243/1245-Type Uncooled Laser Transmitter
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
* With V
EE
connected to –5 V, V
CC
must be at 0 V; with V
CC
connected to +5 V, V
EE
must be at 0 V.
†
Specification depends upon the code ordered. The device is capable of a cold start at –40
°
C; specifications are met
after a warm-up time determined by the system thermal design.
Characteristics
Minimum and maximum v alues specified o v er operating case temperature r ange at 50% duty cycle data signal and
end of lif e (EOL). Typical values are measured at beginning-of-lif e (BOL) room temper ature unless otherwise noted.
Table 2. Electrical Characteristics
1. With V
EE
connected to –5 V, V
CC
must be at 0 V; with V
CC
connected to +5 V, V
EE
must be at 0 V.
2. Input measured from V
CC
with 50
Ω
load to (V
CC
– 2 V). 10K, 10K H, and 100K ECL compatible.
3. Between 10% and 90% (50% duty cycle) where t is the bit period in ns.
4. The transmitter is normally enabled and only requires an external voltage to disable.
5. Time measured from rising edge of disable signal until optical output (laser diode) has turned off.
6. Time measured from falling edge of enable signal until optical output has stabilized at nominal output power level.
7. The laser bias current is obtained by dividing the bias voltage by the 10
Ω
current-sensing resistors. (See Figure 1.) When measuring these
voltages or using them in conjunction with alarm circuits, use a high-input impedance device.
8. The laser back-facet monitor voltage is a scaled output that tracks the transmitter optical output power.
Parameter Symbol Min Max Unit
Supply Voltage
*
— — 5.5 V
Operating Case Temperature Range
†
T
C
–40 85
°
C
Storage Case Temperature Range T
stg
–40 85
°
C
Lead Soldering Temperature/Time — — 250/10
°
C/s
Relative Humidity (noncondensing) RH — 85 %
Minimum Fiber Bend Radius — 1.00 (25.4) — in. (mm)
Parameter Symbol Min Typ Max Unit
Power Supply Voltage
1
V 4.75 5.0 5.50 V
Power Supply Current Drain I
TOTAL
— 30 130 mA
Input Data Voltage:
2
Low
High V
IL
V
IH
–1.81
–1.16 —
—–1.47
–0.88 V
V
Input Transition Time
3
t
I
— t/4 — ns
Transmitter Disable Voltage
4
V
D
V
CC
– 2.0 — V
CC V
Transmitter Enable Voltage VEN VEE —VEE + 0.8 V
Output Disable Time5tD— — 0.20 µs
Output Enable Time6tEN — — 2.00 µs
Laser Bias Voltage7VB0.01 0.06 0.70 V
Laser Monitor Voltage (50% duty cycle)8VBF 0.01 0.05 0.20 V
6 Lucent Technologies Inc.
Data Sheet
1241/1243/1245-Type Uncooled Laser Transmitter September 1999
Characteristics (continued)
Table 3. Optical Characteristics
1. Output power definitions and measurement per ITU-T Recommendation G.957 and G.958.
2. Ratio of logic 1 to logic 0 power levels.
3. Between 10% and 90% (50% duty cycle).
4. Root-mean-square spectral width accounts for modes up to and including those 20 dB down from the central mode.
(Applies to 1241-Type only.)
5. Applies to 1243/1245-Type only.
Recommended User Interfaces
1-496(C).c
* Locate these components as close to DATA/DATA inputs as possible.
Note: The 1241 gigabit version does not require the external 50 Ω terminations since this termination is included inside the module.
Figure 2. dc-Coupled, Differential Input
Parameter Symbol Min Typ Max Unit
Average Power Output Options1PO See Ordering Information. dBm
Extinction Ratio2rE 10 — — dB
Optical Rise and Fall Times3:
OC-3/STM-1
OC-12/STM4
1062.5 Mbits/s
tR, tF
tR, tF
tR, tF
—
—
—
—
—
—
1.0
0.5
0.37
ns
ns
ns
Center Wavelength λ See Ordering Information. nm
RMS Spectral Width4∆λ ——4nm
Side-mode Suppression Ratio5SMSR 30 — — dB
ECL
DRIVER
DTRANSMITTER
15
16
50 Ω*
360 Ω
360 Ω
VEE
D
VEE
50 Ω*
0.1 µF
50 Ω MICROSTRIP OR STRIPLINE-
CONTROLLED IMPEDANCE TRACES
Lucent Technologies Inc. 7
Data Sheet
September 1999 1241/1243/1245-Type Uncooled Laser Transmitter
Recommended User Interfaces (continued)
1-497(C)
Note: Input can also be connected to DATA; unused input pin remains unconnected.
(622 Mbits/s and below only.)
Figure 3. dc-coupled, Single-Ended Input
1-498(C)
* This network introduces a slight offset between DATA and DATA, which turns the laser
transmitter off when there is no data present at the inputs. (622 Mbits/s and below only.)
Figure 4. ac-Coupled, Single-Ended Input
Qualification and Reliability
To help ensure high product reliability and customer satisfaction, Lucent Technologies is committed to an intensiv e
quality program that starts in the design phase and proceeds through the manufacturing process. Optoelectronics
modules are qualified to Lucent Technologies internal standards using MIL-STD-883 test methods and procedures
and using sampling techniques consistent with Bellcore requirements. The 1241/1243/1245 series of transmitters
have undergone an extensive and rigorous set of qualification tests. This qualification program fully meets the
intent of Bellcore reliability practices TR-NWT-000468 and TA-NWT-000983. In addition, the design, development,
and manufacturing facility of the Optoelectronics unit at Lucent Technologies Microelectronics Group has been cer-
tified to be in full compliance with the latest ISO-9001 Quality System Standards.
50 Ω
15
16
1.0 µF
VCC – 2 V
(CUSTOMER
SUPPLIED)
50 Ω COAX
OR 50 Ω
STRIPLINE DTRANSMITTER
D
50 Ω
15
16
50 Ω COAX
OR 50 Ω
STRIPLINE
1.0 µF
1.0 µF
619 Ω
27 Ω
1960 Ω
VEE
VCC
DTRANSMITTER
D
*
*
*
8 Lucent Technologies Inc.
Data Sheet
1241/1243/1245-Type Uncooled Laser Transmitter September 1999
Outline Diagram
Dimensions are in inches and (millimeters). Unless otherwise noted, tolerances are ±0.005 in (±0.127 mm).
1-987C).a
1.339
(34.01) 0.950
(24.13)
0.635
(16.14)
0.144
(3.66)
TOP VIEW
PIN 1 INDICATOR
0.125
(3.18) 0.110
(2.80)
0.100
(2.54)
0.900
(22.86)
0.350 (8.89)
0.400
(10.16)
PIN 20PIN 11
PIN 1PIN 10
BOTTOM VIEW
0.018
(0.46)
Lucent Technologies Inc. 9
Data Sheet
September 1999 1241/1243/1245-Type Uncooled Laser Transmitter
Laser Safety Information
Class I Laser Product
All versions of the 1241/1243/1245-Type transmitters are Class I laser products per CDRH, 21 CFR 1040 Laser
Safety requirements. The 1241/1243/1245-Type transmitters have been certified with the FDA under accession
number 8720009. All versions are Class I laser products per IEC 825-1:1993.
CAUTION: Use of controls, adjustments, and procedures other than those specified herein may result in
hazardous laser radiation exposure.
This product complies with 21 CFR 1040.10 and 1040.11.
8.8 µm single-mode pigtail with connector
Wavelength = 1.3 µm
Maximum power = 1.6 mW
Notice
Unterminated optical connectors may emit laser radiation.
Do not view with optical instruments.
Table 4. Lucent Transmitters for SONET/SDH Applications
* Full SONET/SDH compliance, –40 °C to +85 °C.
† Full SONET/SDH compliance, –20 °C to +70 °C.
Connector
Type
1.3 µm T ransmitter Type*1.55 µm Transmitter Type†
Short and Intermediate Reach
(<2 km and ~15 km) Long Reach
~40 km Long Reach
~80 km
OC-3/
STM-1 OC-12/
STM-4 OC-3/
STM-1 OC-12/
STM-4 OC-3/
STM-1 OC-12/
STM-4
FC-PC 1241FAUC 1241FBUC 1243FAFD 1243FBDC 1245FAFC 1245FBDC
SC 1241CAUC 1241CBUC 1243CAFD 1243CBDC 1245CAFC 1245CBDC
10 Lucent Technologies Inc.
Data Sheet
1241/1243/1245-Type Uncooled Laser Transmitter September 1999
Ordering Information
Table 5. 1241/1243/1245-Type Transmitter Ordering Information
*∆λ for these codes is 2.5 nm maximum. All other 1241-type codes are 4 nm maximum.
OC-3/STM-1 T ransmitter Codes
Operating
Case Temp.
Range (°C)
Average Output
Power
(dBM)
Center
Wavelength
(nm)
Connector 122x
Equivalent Product
Order
Code
Comcode
Min Max Min Typ Max Min Max
0 65 –3 0 2 1290 1330 FC-PC 1227AE 1241FADC 108123449
0 65 –3 0 2 1290 1330 SC 1227AF 1241CADC 108123480
0 65 –5 –2 0 1280 1335 FC-PC 1227YA 1241FAFC 108123357
0 65 –5 –2 0 1280 1335 SC 1227YB 1241CAFC 108123373
0 65 –8 –5 –2 1260 1360 SC 1227CA 1241CALC 108123324
0 65 –8 –5 –2 1260 1360 FC-PC 1227C 1241FALC 108123563
–20 70 –5 –2 0 1480 1580 SC 1229CB5 1245CAFC 108400409
–20 70 –5 –2 0 1480 1580 FC-PC 1229FB5 1245FAFC 108400417
–40 85 –5 –2 0 1280 1335 SC 1227YD 1243CAFD 108123423
–40 85 –5 –2 0 1280 1335 FC-PC 1227YE 1243FAFD 108123415
–40 85 –12 –8 –5 1260 1360 SC 1227FB 1241CAPC 108123282
–40 85 –12 –8 –5 1260 1360 FC-PC 1227F 1241FAPC 108123266
–40 85 –15 –11 –8 1260 1360 SC 1227HA 1241CAUC*108123209
–40 85 –15 –11 –8 1260 1360 FC-PC 1227H 1241FAUC*108123159
OC-12/STM-4 T ransmitter Codes
0 65 –3 0 2 1290 1330 FC-PC 1227AK 1241FBDC 108123456
0 65 –3 0 2 1290 1330 SC 1227AN 1241CBDC 108123498
0 65 –8 –5 –2 1260 1360 FC-PC 1227D 1241FBLC 108123316
–20 70 –3 0 2 1480 1580 SC 1229CA5 1245CBDC 108400391
–20 70 –3 0 2 1480 1580 FC-PC 1229FA5 1245FBDC 108400425
–40 85 –3 0 2 1280 1335 FC-PC 1229FA 1243FBDC 108123506
–40 85 –3 0 2 1280 1335 SC 1229CA 1243CBDC 108123522
–40 85 –12 –8 –5 1260 1360 FC-PC 1227G 1241FBPC 108123274
–40 85 –15 –11 –8 1260 1360 FC-PC 1227AC 1241FBUC*108123167
–40 85 –15 –11 –8 1274 1356 SC 1227PG 1241CBU*108123217
Fibre Channel—1062.5 Mbits/s
10 65 –11 –8 –5 1260 1360 FC-PC 1238A 1241FCPC 108309287
10 65 –11 –8 –5 1260 1360 FC-PC 1238B 1241FCPD 108309295
10 65 –3 0 2 1290 1330 FC-PC 1238C 1241FCDC 108309279
Lucent Technologies Inc. 11
Data Sheet
September 1999 1241/1243/1245-Type Uncooled Laser Transmitter
Part Numbering for the 1241/1243/1245-Type Transmitter
1 2 4 X X X X X Field Description
Laser Type:
1 = 1.3 µm Fabry-Perot laser, 3 = 1.3 µm DFB laser, 5 = 1.55 µm DFB laser
Optical Connector:
C = SC, F = FC/PC
Data Rate:
A = 155 Mbits/s, B = 622 Mbits/s, C = 1062.5 Mbits/s
Typical Power:
D = 0 dBm, F = –2 dBm, L = –5 dBm, P = –8 dBm, U = –11 dBm
Customer Options:
A—F
Table 6. Related Products
Description Device Number Document Number
155 Mbits/s and 622 Mbits/s f or SONET/
SDH Applications 1340-Type Pin Receiver DS99-072LWP
155 Mbits/s and 622 Mbits/s Receivers
with Clock and Data Recovery for
SONET/SDH Applications
1345-Type Pin Receiver with Clock and
Data Recovery DS99-071LWP
Data Sheet
September 1999 1241/1243/1245-Type Uncooled Laser Transmitter
For additional information, contact your Microelectronics Group Account Manager or the following:
INTERNET: http://www.lucent.com/micro, or for Optoelectronics information, http://www.lucent.com/micro/opto
E-MAIL: docmaster@micro.lucent.com
N. AMERICA: Microelectronics Group, Lucent Technologies Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18103
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)
ASIA PACIFIC: Microelectronics Group, Lucent Technologies Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
Tel. (65) 778 8833, FAX (65) 777 7495
CHINA: Microelectronics Group, Lucent Technologies (China) Co., Ltd., A-F2, 23/F, Zao Fong Universe Building, 1800 Zhong Shan Xi Road,
Shanghai 200233 P. R. China
Tel. (86) 21 6440 0468, ext. 316, FAX (86) 21 6440 0652
JAPAN: Microelectronics Group, Lucent Technologies Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700
EUROPE: Data Requests: MICROELECTRONICS GROUP DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148
Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK)
Lucent Technologies Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. No
rights under any patent accompany the sale of any such product(s) or information.
Copyright © 1999 Lucent Technologies Inc.
All Rights Reserved
September 1999
DS99-228LWP (Replaces DS99-073LWP) Printed On
Recycled Paper
