Data Sheet August 2000 D1861A 10 Gbits/s 1310 nm DML Module Description The D1861A direct-modulated laser (DML) module is a cost-effective solution for 10 Gbits/s digital transmission up to 50 km using traditional intracity SMF28 single-mode fiber links. The 1310 nm wavelength eliminates the need for concern about dispersion control over most installed intracity fiber plants. The package contains a high-speed DFB laser chip, thermoelectric cooler, thermistor, optical isolator, and a rear-facet monitor photodiode, which allows for external optical power control. 7 6 – 5 + 4 + Features ■ Average optical output power, 4 mW min. ■ Temperature stabilized with internal thermoelectric cooler (TEC), enabling operation within a wide temperature range of –40 °C to +80 ° C ■ Hermetically sealed optics, isolator on TEC ■ GPO* RF connector ■ Single-mode fiber pigtail ■ High relaxation frequency at low bias 2 TEC MPD 1 – ESD PROTECTION Direct-modulated 1310 nm laser module characterized for use in 10 Gbits/s operations up to 50 km ■ 3 – RF CHOKE RTH 10 kΩ @ 25 °C ISOLATOR RMATCH 45 Ω DFB RF CONNECTOR 1-1157(F) Figure 1. D1861A DML Electrical Schematic Pin Information Table 1. Pin Descriptions Applications ■ SONET/SDH low-cost metro applications ■ High-speed data communications ■ DWDM equipment drop-side applications * GPO is a trademark of Gilbert Engineering Co., Inc. Pin No. Description 1 Thermistor 2 3 4 5 6 7 Thermistor Laser Cathode (–), dc Bias1 MPD Anode, (Negative Bias MPD) MPD Cathode Thermoelectric Cooler (+)2 Thermoelectric Cooler (–) 1. Laser anode is case ground mAp-p drive current. 2. A positive current into this pin cools the laser. Data Sheet August 2000 D1861A 10 Gbits/s 1310 nm DML Module 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 operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. RF input shall be ac coupled. It is recommended that a series inductor of 100 µH be placed external to the device on Pin 3. Parameter Symbol Condition Min Max Unit TOP Tstg — VR IR VRPD ITEC — — TEC On — — — — –40 –40 — — — — — 80 85 150 1 200 20 1.7 °C °C mA V mA V A Operating Temperature Range Storage Case Temperature Range Laser Forward Bias Pin 3, Max. Positive Voltage1 Pin 3, Max. Positive Current1 Reverse Voltage Photodiode TEC Current 1. RF connector ac coupled. Electrical/Optical Characteristics Table 2. Electrical and Optical Characteristics (Case Temperature, –40 °C to + 80 °C; Laser Temperature, 25 °C unless otherwise noted.) Parameter Average Optical Output Power Threshold Current (BOL) Wavelength Wavelength Tuning Coefficient External Efficiency ac Side-mode Suppression Ratio Chromatic Dispersion Penalty (50 km, SMF28, 200 ps/nm) Optical Isolation High-frequency Cutoff (3 dB) Low-frequency Cutoff (3 dB) RF Return Loss, 50 Ω (0.1 GHz—8 GHz) Rise/Fall Time, 10%—90% Thermoelectric Cooler Current Thermistor Resistance Thermistor Coefficient Monitor Photodiode Current Symbol Condition Min Typ Max Unit PO IOP = ITH + 30 mA 4 — — mW ITH λ ∆λT η SMSR — — — — — IOP —1 2 1290 — 0.125 35 — — — 0.085 0.15 — — 30 1320 — — — 1.0 mA nm nm/°C W/A dB dB — — — — — — — — 30 — dB GHz kHz dB — — 10 –4.4 — 50 1.3 10.5 — 1500 ps A kΩ %/°C µA FHIGH FLOW IS11I IOP IOP2 IOP 32 14 — 10 tR/tF ITEC RTH — IMPD —1 — — — IOP — — 9.5 — 40 2 1. 10 Gbits/s PRBS 223–1, ER = 8.2 dB, @ IOP, TOP = 25 °C, typical 50 mAp–p drive current. 2. Measurements made with 100 µH in series with pin 3 (laser cathode). 2 Agere Systems Inc. Data Sheet August 2000 D1861A 10 Gbits/s 1310 nm DML Module Characteristic Curve Figure 2. Filtered Optical Eye Pattern (0 km, Fourth Order Bessel Filter, 8.2 dB ER, 20 ps/div) Outline Diagram Dimensions are in inches and (millimeters). 0.365 (9.45 9.09) 0.040 (1.19 0.84) 0.228 (5.97 5.61) 0.350 (9.07 8.71) 0.318 (8.26 7.90) 1.025 (26.21 25.86) RF INPUT LIMITED DETENT GPO OR SMP CONNECTOR 0.164 DIA 0.248 (6.45 6.12) LEADS 0.008” THICK x 0.030” WIDE 0.400” MIN. LENGTH 6 SPCS @ 0.100” (0.254) 0.420 (10.85 10.49) FIBER AND BEND LIMITER MAINTAIN FIBER BEND RADIUS GREATER THAN 1.5” PIN 1 0.212 (5.56 5.21) 0.078 (2.16 1.80) 0.105 DIA 4 PLCS 0.250 (6.53 6.17) 0.190 (5.00 4.65) 0.820 1.180 (20.80) (30.00) 0.600 (15.00) 0.500 (12.88 12.52) 0.215 ± 0.010 (5.50 ±0.30) 0.048 (1.40 1.04) 1-1156(F) Agere Systems Inc. 3 Data Sheet August 2000 D1861A 10 Gbits/s 1310 nm DML Module Laser Safety Information Class IIIb Laser Product FDA/CDRH Class IIIb laser product. All versions are Class IIIb laser products per CDRH, 21 CFR 1040 Laser Safety requirements. All versions are Class 3B laser products per IEC * 60825-1:1993. The device has been classified with the FDA under an accession number to be determined. This product complies with 21 CFR 1040.10 and 1040.11. SMF28 single-mode fiber pigtail and connector Wavelength = 1.3 µm Maximum power = 30 mW Because of size constraints, laser safety labeling is not affixed to the module but attached to the outside of 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. * IEC is a registered trademark of The International Electrotechnical Commission. DANGER INVISIBLE LASER RADIATION IS EMITTED FROM THE END OF FIBER OR CONNECTOR Avoid direct exposure to beam Do not view beam directly with optical instruments INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR Avoid exposure to beam Class 3B Laser Product IEC-60825M 1993 Max. Output: 30 mW 4 Wavelength: 1.3 µm Agere Systems Inc. Data Sheet August 2000 D1861A 10 Gbits/s 1310 nm DML Module Ordering Information Table 3. Ordering Information1 Device Code D1861A023 D1861A040 D1861A050 Description 10 Gbits/s DML, 1310 nm 10 Gbits/s DML, 1310 nm 10 Gbits/s DML, 1310 nm Connector Pigtail 2 Comcode FC/SPC SMF-28 (1 m min.) 108870015 SC/UPC Standard LC SMF-28 2 (1 m min.) 108870023 SMF-28 2 (1 m min.) 108870031 1. Other options available. For additional ordering information, please contact an Agere Systems account manager at Opto West, 1-800-3623891 (for sales staff, please press option 2). 2. SMF-28 is a trademark of Corning Incorporated. Agere Systems Inc. 5 D1861A 10 Gbits/s 1310 nm DML Module Data Sheet August 2000 For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: [email protected] 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. Copyright © 2001 Agere Systems Inc. All Rights Reserved August 2000 DS00-273OPTO