Preliminary Data Sheet June 1998 A2300-Type Analog Integrated DFB Laser Module with Predistortion Features The Integrated DFB Laser Module with Predistortion provides superior performance in analog transmission systems operating at 1310 nm wavelength. High-performance, multiquantum-well (MQW), distributed-feedback (DFB), semiconductor laser. 14-pin, hermetic, butterfly-type package provides internal isolation and thermoelectric cooling/ heating functions. Stable, accurate, PIN photodetector for laser backfacet optical output power monitoring/control. Operation at the low dispersion, 1310 nm wavelength. Stable performance over the wide temperature range of -20 C to +65 C. Multiple product options available: -- 77/110 NTSC or 42 CENELEC test channel loading. -- Simulated system testing available in a variety of fiber link budget losses. Superior signal quality and system performance compared to present coaxial-based analog systems. Only positive supply voltages required. Input return loss >16 dB. Wide, 1.5 dB bandwidth: 50 MHz--860 MHz. Applications . Video surveillance CATV Wireless/personal communications networks and systems A2300-Type Analog Integrated DFB Laser Module with Predistortion Description The Lucent Technologies Microelectronics Group Optoelectronics unit is now offering a board-level solution for 1310 nm, cooled, internally isolated, directly modulated laser modules used in analog CATV optical transmitter applications. Expertise in the design and fabrication of analog laser modules for 1310 nm transmission, as well as in the design of predistortion circuits, allows Lucent to offer a broader range of performance in a highly competitive market. The new offering features board-integrated functionality as a standard product, which reduces the time, resources, and expense typically required for individual component specifications, circuit designs, and manufacturing. The A2300-Type Analog Integrated, DFB Laser Module contains a high-performance, Indium-GalliumArsenide-Phosphide, multiquantum-well, distributedfeedback laser chip designed for 1310 nm, single-mode fiber-optic applications. A 14-pin, butterfly-type, hermetic, metal/ceramic package houses the laser chip as well as an integral thermoelectric cooling/heating device, a thermistor, an integral optical isolator, and a laser back-facet optical monitor. The module is also equipped with a 900 m Hytrel * jacketed, 8.8 m core, single-mode fiber. The integral thermoelectric cooler (TEC) provides stable thermal characteristics for the laser chip, as well as the optical isolator and back-facet monitor. The TEC allows for heating and cooling of these internal optical components and can maintain their temperature at a constant 25 C over the entire ambient operating temperature range of -20 C to +65 C. The thermistor monitors the internal module temperatures and provides feedback control for the TEC. This gives the A2300-Type Laser superior, stable optical characteristics. 2 Preliminary Data Sheet June 1998 When used in a fiber-optic system, reflected light entering the laser module is attenuated a minimum of 25 dB by the optical isolator. The internal PIN photodiode monitors the optical power emitted from the rear facet of the laser diode, and when used in conjunction with exterior module circuitry, it can monitor and control the optical output power launched into the fiber. Lucent Technologies analog laser modules feature the capability to have enhanced performance and value through the addition of the Optoelectronics unit's exclusive predistortion circuit. The predistortion circuit provides both CSO and CTB correction enhancements to the laser module performance, for 110 NTSC as well as 42 CENELEC channels. While maintaining extremely low electrical power dissipation and low insertion loss, the predistortion circuit allows 860 MHz of RF bandwidth. Every A2300-type module is tested to meet the customer's analog performance specifications, over the specified fiber link budget loss and test channel plan. This measurement method ensures proper system performance of the product. Lucent Technologies Optoelectronics unit components and products are qualified to the rigorous requirements of Bellcore standards, ensuring that the optoelectronic performance will meet the needs of the application over the lifetime of the product. * Hytrel is a registered trademark of E.I. DuPont de Nemours and Company. Lucent Technologies Inc. A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Handling Precautions Electrostatic Discharge The minimum fiber bend radius is 1.25 in. To avoid degradation in performance, mount the module board as follows: CAUTION: This device is susceptible to damage as a result of electrostatic discharge. Take proper precautions during both handling and testing. Follow guidelines such as JEDEC Publication No. 108-A (Dec. 1988). Place the module on a flat heat sink surface. The surface finish should be better than 32 in. (0.8 m), and the surface flatness must be better than 0.001 in. (25.4 m). The use of thermal conductive grease is optional; however, thermal performance can be improved if conductive grease is applied between the heat sink surfaces. Power Sequencing Adopt the following sequence for turn-on as a matter of good practice to avoid the possibility of damage to the laser module from power supply switching transients. Lucent employs a human-body model (HBM) for ESDsusceptibility testing and protection-design evaluation. ESD voltage thresholds are dependent on the critical parameters used to define the model. A standard HBM (resistance = 1.5 k, capacitance = 100 pF) is widely used and, therefore, can be used for comparison purposes. The HBM ESD threshold presented here was obtained using these circuit parameters: Parameter Human-body Model Value Unit 400 V 1. All ground connections. 2. Most negative supply. 3. Most positive supply. 4. All remaining connections. Reverse the above order for the proper turn-off sequence. 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 Laser Reverse Voltage Laser dc Forward Current Module Board dc Supply Voltage RF Modulation per Channel (75 ) Operating Temperature Range Storage Case Temperature Range Symbol Min Max Unit -- -- -- -- TA Tstg -- -- 11.9 -- -20 -40 2 150 12.1 0 65 85* V mA V dBm C C * 2000 hours maximum. Lucent Technologies Inc. 3 A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Characteristics Minimum and maximum values are testing requirements. Typical values are for informational purposes only and are not part of the testing requirements. Each device is provided with recommended operating conditions to achieve specified performance. TL = 25 C, unless noted otherwise. Module board supply voltage is +12 Vdc. Table 1. Electrical Characteristics Parameter Laser Forward Voltage Laser Operating Current Threshold Current Monitor Reverse-bias Voltage Monitor Current Monitor Dark Current Thermistor Current Thermistor Resistance Thermistor Thermal Characteristic Thermistor Temperature Coefficient TEC Current TEC Voltage TEC Cooling Capacity Symbol Test Conditions Min Typ Max Unit VLF IOP ITC VMON IMON ID ITH RTH RTH/TL At rated power -- * -- At IOP IF = 0, VMON = 5 V -- TL = 25 C, ITH 0.1 mA -20 C TL 65 C -- -- -- 3 0.2 -- 10 9.5 -- 1.3 50 10 -- -- -- -- -- -4.4 1.8 100 40 10 2.0 0.10 100 10.5 -- V mA mA V mA A A k %/C B -- 3700 3900 4100 K ITEC VTEC T T = 40 C T = 40 C -- -- -- 40 -- -- -- 1.0 1.8 -- A V C * The laser threshold current is the current at which the first derivative of the laser light vs. forward current is at one-half of its maximum. The thermistor thermal characteristic will be monotonic. Table 2. Optical Characteristics Parameter Optical Output Power Center Wavelength Optical Isolation Side-mode Suppression Ratio 4 Symbol Test Conditions Min Typ Max Unit PO C -- SMSR -- -- -20 C to +65 C Modulated 3.0 1290 25 30 -- 1310 -- -- 20.0 1330 -- -- mW nm dB dB Lucent Technologies Inc. A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Pin Function Information , The electrical connector is a 10-pin type Molex * Part No. 22-01-310. The RF connector is a 75 female, SMBtype. Table 3. Pin Descriptions Pin Number Connection Function 1 Monitor-Photodiode Cathode +5 Vdc, 5 mA max. 2 Reference Ground Photodiode anode GND. 3 TE Cooler (+) Current into pin cools; 1.2 Adc max. 4 TE Cooler (-) Current into pin heats; 1.2 Adc max. 5 Thermistor 10 k 2% @ 25 C. TC of -4.4% per C, Type B. 6 Laser Bias Laser requires a sink current into this pin, 100 mAdc max. 7 dc Circuit Bias +12 Vdc 5%; 225 mAdc max.; 100 mVP-P max. ripple. 8 No Connection NA 9 Power Ground GND return. 10 No Connection NA * Molex is a registered trademark of Molex, Inc. Pin 10 is marked on connector; connector type is unidirectional. Lucent Technologies Inc. 5 A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Outline Diagrams Dimensions are in inches. Transmitter Assembly Board FIBER CONNECTOR (SC-TYPE SHOWN) Molex dc CONNECTOR FEMALE, 75 , SMB TOP VIEW THERMAL COMPOUND APPLIED PRIOR TO MOUNTING BOTTOM VIEW 1-954 (F) . 6 Lucent Technologies Inc. A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Outline Diagrams (continued) Dimensions are in inches. Transmitter Assembly Board Dimensions, Top View 1.616 1.366 0.250 0.100 0.138 DIA. NOTE 2 0.110 DIA. NOTE 2 4.800 4.555 0.138 DIA. NOTE 2 R 0.032 TYP. 6 PLCS. 2.081 1.399 1.275 1.930 0.150 DIA. 7 PLCS. NOTE 1 1.047 0.125 1.217 1.760 3.937 1-955 (F) 1. Plated heat sink mounting holes. 2. Unplated board mounting holes. Lucent Technologies Inc. 7 A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Outline Diagrams (continued) Dimensions are in inches. 1.15 1.212 1.275 1.40 0.000 0.125 0.188 0.25 Laser Assembly Heat Sink 32 0.001 0.000 0.110 0.25 0.375 0.725 0.85 0.990 1.10 0.790 0.005 0.565 0.005 0.000 (1.10) TAP #8-32 (O 0.164) C-SINK (82) TO O 0.200 0.550 (1.40) 0.700 0.000 0.000 1-953 (F) 8 Lucent Technologies Inc. A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Part Numbering for the A2300-Type Laser A 2 3 0 0 R P M Field Description Alpha character indicating product type A = Analog 2 = Laser 2000 Wavelength indicator 3 = 1.3 m typical devices Link loss series and power range 00 5 dB link loss (00 through 09) 10 7 dB link loss (10 through 19) 20 9 dB link loss (20 through 29) 30 9 dB link loss; high power (30 through 39) 40 11 dB link loss (40 through 49) 50 11 dB link loss; high power (50 through 59) 60 13 dB link loss (60 through 69) 70 13 dB link loss; high power (70 through 79) Alpha character indicating standard connector options B = SC-APC; 2.15 m 0.2 m R = FC-APC; 2.15 m 0.2 m D = SC-PC; 2.15 m 0.2 m Package type P = Predistorted laser Product configuration M = Integrated module board Lucent Technologies Inc. 9 A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Laser Safety Information Class IIIb Laser Product This product complies with 21 CFR 1040.10 and 1040.11. Single-mode connector Wavelength = 1.3 m Maximum power = 40 mW Because of size constraints, laser safety labeling is not affixed to the module but is contained on the shipping carton. 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. DANGER INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM. Indium Gallium Arsenide Phosphide Laser 40 40 mW mW Max. max.Output Output@ @1.3 1.3m m Class IIIb Laser Product DANGER INVISIBLE RADIATION IS EMITTED FROM THE END OF THE FIBER OR CONNECTOR. AVOID DIRECT EXPOSURE TO THE BEAM. DO NOT VIEW WITH OPTICAL INSTRUMENTS. 10 Lucent Technologies Inc. A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 Ordering Information Table 4. Analog Product Availability, Integrated Laser/Predistorter L2000 Part Number Comcode Tested Loss* Optical Power Channel Capacity CNR (dBc) CSO (dBc) CTB (dBc) A2317DPM 108239294 7 dB 6 dBm--8 dBm 77 NTSC 52 -63 -68 A2318DPM 108239302 7 dB 6 dBm--8 dBm 110 NTSC 50 -63 -68 A2319DPM 108239310 7 dB 6 dBm--8 dBm 42 CENELEC 52 -63 -67 A2356DPM 108239328 11 dB 10 dBm--12 dBm 77 NTSC 52 -63 -68 A2359DPM 108239336 11 dB 10 dBm--12 dBm 110 NTSC 50 -63 -68 A2355BPM 108116641 11 dB >11 dBm 42 CENELEC 52 -63 -67 A2377DPM 108239344 13 dB >10 dBm 77 NTSC 52 -63 -68 A2378DPM 108239351 13 dB >10 dBm 110 NTSC 51 -63 -68 A2358BPM 108116674 13 dB >12 dBm 42 CENELEC 53 -63 -67 * 7 dB is all fiber; NTSC: 11 dB and 13 dB include a minimum 9 dB of fiber loss; CENELEC: 11 dB and 13 dB include a minimum 7 dB of fiber loss. Lucent Technologies Inc. 11 A2300-Type Analog Integrated DFB Laser Module with Predistortion Preliminary Data Sheet June 1998 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) 1189 324 299, FAX (44) 1189 328 148 Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Bracknell 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 (c) 1998 Lucent Technologies Inc. All Rights Reserved Printed in U.S.A. June 1998 DS98-211LWP Printed On Recycled Paper