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Электронный компонент: T92

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T92-Type 10 Gbits/s 1300 nm
Uncooled DFB Laser Transmitter
Advance Data Sheet
March 2001
Offering SONET/SDH compatibility, the T92-Type Uncooled
Laser Transmitter is manufactured in a 24-pin DIP assembly
with a single-mode fiber pigtail.
Features
s
Multisource compliant
s
Data rates to 10 Gbits/s
s
SONET and ITU-T compliant at OC-192 and
STM-64 (see footnote 7 on page 4)
s
Uncooled, field-proven InGaAsP MQW laser
s
1300 nm DFB
s
Clocked or nonclocked operation with single-ended
or differential inputs
s
50
ac-coupled 500 mVp-p--1000 mVp-p single-
ended data and clock inputs
s
Operation from single 5.2 V or +5.0 V power sup-
ply
s
Low profile, 24-pin PWB assembly
s
Automatic optical power control
s
Wide operating case temperature range: 0 C to
70 C
s
Laser bias monitor output
s
Normalized laser back-facet monitor output
s
Laser degrade alarm
s
Clock-select input (next generation)
s
Transmitter disable input
s
SC, FC-PC, and LC optical connector options
Applications
s
Telecommunications:
-- SONET/SDH
-- Subscriber loop
-- Metropolitan area networks
s
High-speed data communications
Description
The T92-Type 10 Gbits/s laser transmitters are
designed for use in transmission systems and high-
speed data communication applications. The trans-
mitter operates at the SONET OC-192 rate, as well
as, the ITU-T SDH rate of STM-64.
The transmitters meet all present
Telcordia Technolo-
gies
* GR-253-CORE requirements and the ITU-T
G.691 recommendations (see footnote 7, p.4). The
transmitters are also ideally suited for extended dis-
tance data and networking applications.
Manufactured in a 24-pin DIP assembly, the transmit-
ter uses an hermetic MQW isolated 1300 nm DFB
laser, an InGaAs PIN photodiode back-facet monitor
and a GaAs laser driver IC. The transmitter requires
a single power supply (5.2 V or +5.0 V). Clocked
operation can be enabled for those applications
where jitter is critical.
Pin information is listed in Table 1.
*
Telcordia Technologies
is a trademark of Telcordia Technologies,
Inc.
T92-Type 10 Gbits/s 1300 nm
Advance Data Sheet
Uncooled DFB Laser Transmitter
March 2001
2
2
Agere Systems Inc.
Description
(continued)
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 can deform at
temperatures greater than 85 C. The transmitter pins
can be wave-soldered at a maximum temperature of
250 C for 10 seconds.
Installation Considerations
Although the transmitter has been designed with rug-
gedness in mind, 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, the
use of canned air with an extension tube should
remove any debris. Other cleaning procedures are
identified in the
Cleaning Fiber-Optic Assemblies
Tech-
nical Note (TN95-010LWP).
Laser Degrade-mode Alarm
An output of the transmitter that indicates when the
laser bias has reached its end-of-life condition. The
transmitter will still function, but may not meet all speci-
fications. The transmitter should be replaced when this
alarm is active (active low). Specifically, this alarm indi-
cates that the bias of the laser has changed more than
50% from its original value.
Back-facet Monitor Output
This is an analog output that indicates whether the
transmitter has the correct optically generated back-
facet current. It may be used for alarm purposes. It is
referenced to V
EE
. Under normal operating conditions,
this monitor will output a voltage that is nominally
500 mV above V
EE
. When the optical output power of
the transmitter increases or decreases, this voltage will
move proportionately.
Bias Monitor Output
This is an optional analog output voltage that indicates
the bias current being supplied to the laser. It is refer-
enced to V
EE
. The conversion for this monitor output is
20 mV for every 1 mA of bias current to the laser. For
example, a 400 mV output above V
EE
would indicate
20 mA of bias current to the laser.
Table 1. Pin Descriptions
1. Laser back-facet function is a customer-use option that is not
required for normal operations of the transmitter and is normally
used during manufacture and for diagnostics.
2. Laser temperature (C) = (V
TEMP
0.5 V)/0.01 V, where V
TEMP
is
the temperature monitor voltage.
3. This pin can be tied to ground.
4. For single-ended operation, data signal must be on pin 16, and
DATA
(pin 18) must 50
terminated to ground; for single-ended
clocked operation, clock signal must be on pin 20, and
CLOCK
(pin
22) must be 50
terminated to ground.
Pin Number
Name
1
V
EE
2
Back-facet Monitor
1
3
Bias Monitor
4
Tx Enable
5
Clock Select
6
Ground
7
Temperature Monitor
2
8
Laser Degrade Alarm
9
NUC
10
NUC
11
NUC
3
12
V
EE
13
V
CC
14
NUC
3
15
Ground
16
DATA
4
17
Ground
18
DATA
4
19
Ground
20
CLOCK
4
21
Ground
22
CLOCK
4
23
Ground
24
V
CC
Advance Data Sheet
T92-Type 10 Gbits/s 1300 nm
March 2001
Uncooled DFB Laser Transmitter
3
Agere Systems Inc.
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.
Characteristics
(Minimum and maximum values specified over operating case temperature range at 50% duty cycle data signal.
Typical values are measured at room temperature unless otherwise noted.)
1. With V
EE
connected to 5.2 V, V
CC
must be at 0 V; With V
CC
connected to +5.0V, V
EE
must be at 0 V.
2. Inputs are ac-coupled into an equivalent input impedance of 50
.
3. Single-ended or differential operation may be used. If the inputs are driven single-ended, the unused inputs (
Clock
and
Data
) must be 50
ter-
minated to ground.
4. Clocked operation is normally enabled and only requires an external voltage to disable. For nonclocked operation, pin 5 must be tied to V
CC
.
5. With clocked operation, the optical output changes state with the rising edge of the input clock signal. The skew is measured with the rising
edge of the clock centered in the middle of the data eye.
6. The transmitter is normally enabled and only requires an external voltage to disable.
7. This alarm will go active when the bias current to the laser has increased 50% or more from its beginning-of-life (BOL) value.
8. This voltage is measured from Pin 3 to V
EE
and is converted to laser bias current with the ratio of 20 mV/mA.
9. This voltage is measured from Pin 2 to V
EE
.
Parameter
Symbol
Min
Max
Unit
Supply Voltage
V
CC
--
5.5
V
Operating Case Temperature Range
T
C
0
70
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)
Table 2. Electrical Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
dc Power Supply Voltage
1
V
EE
5.5/+4.75
5.2/+5.0
4.9/+5.25
V
dc Power Supply Current Drain
I
--
250
400
mA
Input Data/Clock Voltage:
2, 3
Single-ended Input
V
IN
500
700
1000
mVp-p
Clocked/Nonclocked Select Voltage:
4
Clocked Operation
Nonclocked Operation
V
SEL_CLK
V
SEL CLK
V
EE
V
CC
2.0
--
--
V
EE
+ 0.8
V
CC
V
V
Clock/Data Input Impedance
R
IN
--
50
--
Clock/Data RF Return Loss (50 kHz to 10 Ghz)
S11
--
--
10
dB
Clock/Data Input Skew
5
dc
SKEW
25
0
25
ps
Transmitter Disable Voltage
6
V
DIS
V
CC
2.0
--
V
CC
V
Transmitter Enable Voltage
V
EN
V
EE
--
V
EE
+ 0.8
V
Degrade Mode Alarm VoltageNormal
V
NORMAL
V
CC
2.0
--
V
CC
V
Degrade Mode Alarm VoltageAlarmed
7
V
ALARMED
V
EE
--
V
EE
+ 0.8
V
Laser Bias Voltage
8
V
B
0
500
2400
mV
Back-facet Monitor Voltage (50% duty cycle)
9
V
BF
460
500
540
mV
T92-Type 10 Gbits/s 1300 nm
Advance Data Sheet
Uncooled DFB Laser Transmitter
March 2001
4
Agere Systems Inc.
Characteristics
(continued)
1. Output power definitions and measurements per proposals to the ITU-T Recommendation G.691.
2. Full spectral width measured 20 dB down from the maximum of the central wavelength peak under fully modulated conditions.
3. Ratio of the peak output power in the dominant longitudinal mode to the power in the most significant side mode under fully modulated condi-
tions.
4. Ratio of logic 1 output power to logic 0 output under fully modulated conditions.
5. GR-253-CORE,
Synchronous Optical Network (SONET) Transport Systems: Common Generic Criteria
.
6. ITU-T Recommendation G.691,
Optical Interfaces for Equipment and Systems Relating to the Synchronous Digital Hierarchy
.
7. The 10 Gbits/s mask has not been currently agreed to by the standards committee. Proposal is to use the 2.5 Gbits/s SONET eye mask test
scaled to 10 Gbits/s. The inner mask will be met, however, the outer mask will not be met.
Table 3. Optical Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
Average Power Output, T923xFAA
1
P
O
6 2 1
dBm
Center Wavelength Range, T923xFAA
C
1290
--
1330
nm
Spectral Width
2
20
--
--
1
nm
Wavelength Shift with Temperature
/
T
--
0.1
--
nm/C
Side-mode Suppression Ratio
3
SMSR
30
--
--
dB
Dispersion Penalty (D = 12 km, max.)
D
P
--
--
1
dB
Extinction Ratio
4
r
e
6
7
--
dB
Eye Mask of Optical Output
5, 6, 7
--
See Note 7.
--
Advance Data Sheet
T92-Type 10 Gbits/s 1300 nm
March 2001
Uncooled DFB Laser Transmitter
5
Agere Systems Inc.
Outline Drawings
Dimensions are in inches and (millimeters).
1.450
(36.83)
2.015
(51.18)
1.055
(26.80)
0.260
(6.60)
0.392
(9.96)
0.125
(3.18)
0.100
(2.54)
0.018
(0.46)
0.015
(0.38)
1.100
(27.94)
0.720
(18.29)
1.000
(25.40)
1-1256(F)
1-1256(F)
Outline Drawings
Dimensions are in inches and (millimeters).
1.450
(36.83)
2.015
(51.18)
1.055
(26.80)
0.260
(6.60)
0.392
(9.96)
0.125
(3.18)
0.100
(2.54)
0.018
(0.46)
0.015
(0.38)
1.100
(27.94)
0.720
(18.29)
1.000
(25.40)
1-1256(F)
T92-Type 10 Gbits/s 1300 nm
Advance Data Sheet
Uncooled DFB Laser Transmitter
March 2001
6
Agere Systems Inc.
Qualification and Reliability
To help ensure high product reliability and customer satisfaction, Agere Systems is committed to an intensive qual-
ity program that starts in the design phase and proceeds through the manufacturing process. Optoelectronics mod-
ules are qualified to Agere Systems internal standards using MIL-STD-883 test methods and procedures and using
sampling techniques consistent with
Telcordia Technologies
requirements. This qualification program fully meets
the intent of Bellcore reliability practices TR-NWT-000468 and TA-TSY-000983. In addition, the Agere Systems
Technologies Microelectronics Group Optoelectronics design, development, and manufacturing facility has been
certified to be in full compliance with the latest
ISO
* 9001 Quality System Standards.
Laser Safety Information
Class I Laser Product
All versions of the T92-type transmitters are classified as Class I laser products per FDA/CDRH, 21 CFR 1040
Laser Safety requirements. The transmitters are classified with the FDA under accession number 8720009. All ver-
sions are classified as Class I laser products per
IEC
60825-1:1993.
This product complies with 21 CFR 1040.10 and 1040.11.
Wavelength = 1.5
m
Maximum power = 10 mW
Connector Options
The standard optical fiber pigtail is 8
m core single-mode fiber having a 0.036 in. (914 mm) diameter tight-buffered
outer-jacket. The standard length is 39 in. 4 in. (1 m 10 cm) and can be terminated with an SC, FC-PC, or LC
optical connector.
Product is not shipped with power supply.
Caution: Use of controls, adjustments, and procedures other than those specified herein may result in
hazardous laser radiation exposure.
NOTICE
Unterminated optical connectors can emit laser radiation.
Do not view with optical instruments.
*
ISO
is a registered trademark of The International Organization for Standardization.
IEC
is a registered trademark of The International Electrotechnical Commission.
Advance Data Sheet
T92-Type 10 Gbits/s 1300 nm
March 2001
Uncooled DFB Laser Transmitter
7
Agere Systems Inc.
Ordering Information
Ordering Code Definitions
Table 4. Ordering Information
Product Code
Connector
Comcode
T923CFAA
SC
108749748
T923FFAA
FC-PC
108749755
T923WFAA
LC
108749763
Table 5. Related Product Information
Product Code
Description
Document Number
R192-Type 10 Gbits/s
Optical Receiver
10 Gbits/s
Optical Receiver
DS00-261OPTO
ORDER CODE:
X
X
XX
T923
3 = 1.3
m DFB
Optical Connector:
Customer Options:
Typical Power:
C = SC
F = FC-PC
W = LC
Laser Type:
F = 2 dBm
AA--ZZ
T92-Type 10 Gbits/s 1300 nm
Advance Data Sheet
Uncooled DFB Laser Transmitter
March 2001
For additional information, contact your Agere Systems Account Manager or the following:
INTERNET:
http://www.agere.com
E-MAIL:
docmaster@micro.lucent.com
N. AMERICA:
Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)
ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
Tel. (65) 778 8833, FAX (65) 777 7495
CHINA:
Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC
Tel. (86) 21 50471212, FAX (86) 21 50472266
JAPAN:
Agere Systems 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: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148
Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK)
Agere Systems 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 2001 Agere Systems Inc.
All Rights Reserved
March 2001
DS01-085OPTO