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Advance Data Sheet March 2001
T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
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Laser degrade alarm Clock-select input (next generation) Transmitter disable input SC, FC-PC, and LC optical connector options
Applications
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Telecommunications: -- SONET/SDH -- Subscriber loop -- Metropolitan area networks High-speed data communications
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Offering SONET/SDH compatibility, the T92-Type Uncooled Laser Transmitter is manufactured in a 24-pin DIP assembly with a single-mode fiber pigtail.
Description
The T92-Type 10 Gbits/s laser transmitters are designed for use in transmission systems and highspeed data communication applications. The transmitter operates at the SONET OC-192 rate, as well as, the ITU-T SDH rate of STM-64. The transmitters meet all present Telcordia Technologies * GR-253-CORE requirements and the ITU-T G.691 recommendations (see footnote 7, p.4). The transmitters are also ideally suited for extended distance data and networking applications. Manufactured in a 24-pin DIP assembly, the transmitter 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.
Features
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Multisource compliant Data rates to 10 Gbits/s SONET and ITU-T compliant at OC-192 and STM-64 (see footnote 7 on page 4) Uncooled, field-proven InGaAsP MQW laser 1300 nm DFB Clocked or nonclocked operation with single-ended or differential inputs 50 ac-coupled 500 mVp-p--1000 mVp-p singleended data and clock inputs Operation from single -5.2 V or +5.0 V power supply Low profile, 24-pin PWB assembly Automatic optical power control Wide operating case temperature range: 0 C to 70 C Laser bias monitor output Normalized laser back-facet monitor output
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* Telcordia Technologies is a trademark of Telcordia Technologies, Inc.
T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Advance Data Sheet March 2001 Bias Monitor Output
This is an optional analog output voltage that indicates the bias current being supplied to the laser. It is referenced to VEE. 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 VEE would indicate 20 mA of bias current to the laser. Table 1. Pin Descriptions Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Name VEE Back-facet Monitor1 Bias Monitor Tx Enable Clock Select Ground Temperature Monitor2 Laser Degrade Alarm NUC NUC NUC3 VEE VCC NUC3 Ground DATA4 Ground DATA4 Ground CLOCK4 Ground CLOCK4 Ground VCC
Description (continued)
Transmitter Processing
The transmitter can withstand normal wave soldering processes. The complete transmitter module is not hermetically 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 ruggedness 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 Technical 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 specifications. The transmitter should be replaced when this alarm is active (active low). Specifically, this alarm indicates 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 backfacet current. It may be used for alarm purposes. It is referenced to VEE. Under normal operating conditions, this monitor will output a voltage that is nominally 500 mV above VEE. When the optical output power of the transmitter increases or decreases, this voltage will move proportionately.
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) = (VTEMP - 0.5 V)/0.01 V, where VTEMP 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.
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Agere Systems Inc.
Advance Data Sheet March 2001
T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute 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. Parameter Supply Voltage Operating Case Temperature Range Storage Case Temperature Range Lead Soldering Temperature/Time Relative Humidity (noncondensing) Minimum Fiber-Bend Radius Symbol VCC TC Tstg -- RH -- Min -- 0 -40 -- -- 1.00 (25.4) Max 5.5 70 85 250/10 85 -- Unit V C C C/s % in. (mm)
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.) Table 2. Electrical Characteristics Parameter dc Power Supply Voltage
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Symbol VEE I VIN VSEL_CLK VSEL CLK RIN S11 dcSKEW VDIS VEN VNORMAL VALARMED VB
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Min -5.5/+4.75 -- 500 VEE VCC - 2.0 -- -- -25 VCC - 2.0 VEE VCC - 2.0 VEE 0 460
Typ -5.2/+5.0 250 700 -- -- 50 -- 0 -- -- -- -- 500 500
Max -4.9/+5.25 400 1000 VEE + 0.8 VCC -- -10 25 VCC VEE + 0.8 VCC VEE + 0.8 2400 540
Unit V mA mVp-p V V dB ps V V V V mV mV
dc Power Supply Current Drain Input Data/Clock Voltage:
2, 3
Single-ended Input
Clocked/Nonclocked Select Voltage: Clocked Operation Nonclocked Operation Clock/Data Input Impedance
Clock/Data RF Return Loss (50 kHz to 10 Ghz) Clock/Data Input Skew
5 6
Transmitter Disable Voltage Transmitter Enable Voltage
Degrade Mode Alarm Voltage-Normal Degrade Mode Alarm Voltage-Alarmed7 Laser Bias Voltage
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Back-facet Monitor Voltage (50% duty cycle)
VBF
1. With VEE connected to -5.2 V, VCC must be at 0 V; With VCC connected to +5.0V, VEE 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 terminated 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 VCC. 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 VEE and is converted to laser bias current with the ratio of 20 mV/mA. 9. This voltage is measured from Pin 2 to VEE.
Agere Systems Inc.
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T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Advance Data Sheet March 2001
Characteristics (continued)
Table 3. Optical Characteristics Parameter Average Power Output, Spectral Width
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Symbol PO C 20 /T SMSR DP re --
Min -6 1290 -- -- 30 -- 6
Typ -2 -- -- 0.1 -- -- 7 See Note 7.
Max -1 1330 1 -- -- 1 --
Unit dBm nm nm nm/C dB dB dB --
T923xFAA1
Center Wavelength Range, T923xFAA Wavelength Shift with Temperature Side-mode Suppression Extinction Ratio4
5, 6, 7
Ratio 3
Dispersion Penalty (D = 12 km, max.) Eye Mask of Optical Output
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 conditions. 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.
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Agere Systems Inc.
Advance Data Sheet March 2001
T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Outline Drawings
Dimensions are in inches and (millimeters).
2.015 (51.18)
1.055 (26.80) 1.450 (36.83)
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)
1-1256(F)
Agere Systems Inc.
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T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Advance Data Sheet March 2001
Qualification and Reliability
To help ensure high product reliability and customer satisfaction, Agere Systems is committed to an intensive quality program that starts in the design phase and proceeds through the manufacturing process. Optoelectronics modules 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 versions 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.
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Agere Systems Inc.
Advance Data Sheet March 2001
T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Ordering Information
Table 4. Ordering Information Product Code T923CFAA T923FFAA T923WFAA Connector SC FC-PC LC Comcode 108749748 108749755 108749763
Ordering Code Definitions
ORDER CODE:T923 Laser Type: 3 = 1.3 m DFB Optical Connector: C = SC F = FC-PC W = LC X X XX Customer Options: AA--ZZ Typical Power: F = -2 dBm
Table 5. Related Product Information Product Code R192-Type 10 Gbits/s Optical Receiver Description 10 Gbits/s Optical Receiver Document Number DS00-261OPTO
Agere Systems Inc.
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T92-Type 10 Gbits/s 1300 nm Uncooled DFB Laser Transmitter
Advance Data Sheet March 2001
For additional information, contact your Agere Systems Account Manager or the following: http://www.agere.com INTERNET: docmaster@micro.lucent.com E-MAIL: 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 (c) 2001 Agere Systems Inc. All Rights Reserved
March 2001 DS01-085OPTO

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