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Preliminary Data Sheet March 2001
D1861D 10 Gbits/s 1310 nm DML Module (10 dBm)
Description
The D1861D direct-modulated laser (DML) module is a cost-effective solution for 10 Gbits/s digital transmission up to 50 km using traditional intracity SMF-28 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 - 3 - 2 1
Features
s
ESD PROTECTION TEC MPD
RTH 10 k @ 25 C
Direct-modulated 1310 nm laser module characterized for use in 10 Gbits/s operations up to 50 km High package slope efficiency Average optical output power capability, 10 dBm Temperature stabilized with internal thermoelectric cooler (TEC), enabling operation within a wide temperature range of -5 C to +80 C Hermetically sealed optics, isolator on TEC
RF CHOKE
ISOLATOR DFB RMATCH 45
s s s
RF CONNECTOR
1-1157(F)
Figure 1. D1861D DML Electrical Schematic
s s s s
GPO* RF connector
Single-mode fiber pigtail High relaxation frequency at low bias
Pin Information
Table 1. Pin Descriptions Pin No. 1 2 3 4 5 6 7 Description Thermistor Thermistor Laser Cathode (-), dc Bias1 MPD Anode, (Negative Bias MPD) MPD Cathode Thermoelectric Cooler (+)2 Thermoelectric Cooler (-)
Applications
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SONET/SDH low-cost metro applications High-speed data communications DWDM equipment drop-side applications
1. Laser anode is case ground mAp-p drive current. 2. A positive current into this pin cools the laser. * GPO is a trademark of Gilbert Engineering Co., Inc.
SMF-28 is a trademark of Corning Incorporated.
D1861A 10 Gbits/s 1310 nm DML Module (10 dBm)
Preliminary Data Sheet March 2001
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 H be placed external to the device on Pin 3. Parameter 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.
Symbol TOP Tstg -- VR IR VRPD ITEC
Condition -- -- TEC On -- -- -- --
Min -40 -40 -- -- -- -- --
Max 80 85 150 1 200 20 1.7
Unit C C mA V mA V A
Electrical/Optical Characteristics
Table 2. Electrical and Optical Characteristics (Case temperature, -5 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 (0.1 GHz--8 GHz) Rise/Fall Time, 10%--90% Thermoelectric Cooler Current Thermistor Resistance Thermistor Coefficient Monitor Photodiode Current Symbol PO ITH T SMSR -- -- FHIGH FLOW IS11I tR/tF ITEC RTH -- IMPD Condition IOP ITH + 30 mA -- -- -- -- IOP --1 -- IOP2 IOP2 IOP --1 -- -- -- IOP Min 7 2 1290 -- 0.24 35 -- 32 14 -- 10 -- -- 9.5 -- 40 Typ -- -- -- 0.085 -- -- -- -- -- -- -- -- -- 10 -4.4 -- Max -- 30 1320 -- -- -- 1.0 -- -- 30 -- 50 1.3 10.5 -- 1500 Unit mW mA nm nm/C W/A dB dB dB GHz kHz dB ps A k %/C A
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 H in series with pin 3 (laser cathode).
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Agere Systems Inc.
Preliminary Data Sheet March 2001
D1861A 10 Gbits/s 1310 nm DML Module (10 dBm)
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)
LEADS 0.008" THICK x 0.030" WIDE 0.400" MIN. LENGTH 6 SPCS @ 0.100" (0.254) PIN 1
1.025 (26.21 25.86) RF INPUT LIMITED DETENT GPO OR SMP CONNECTOR 0.164 DIA
0.318 (8.26 7.90)
0.820 1.180 (20.80) (30.00)
0.420 (10.85 10.49)
0.078 (2.16 1.80) 0.105 DIA 4 PLCS 0.600 (15.00)
0.212 (5.56 5.21)
0.248 (6.45 6.12)
FIBER AND BEND LIMITER MAINTAIN FIBER BEND RADIUS GREATER THAN 1.5"
0.9 mm HYTREL* TIGHT-BUFFERED JACKET OVER ACRYLATE-COATED FIBER 0.500 (12.88 12.52) 0.215 0.010 (5.50 0.30)
0.250 (6.53 6.17)
0.190 (5.00 4.65)
0.048 (1.40 1.04) 1-1156(F)
* HYTREL is a trademark of E. I. du Pont de Nemours and Company.
Agere Systems Inc.
3
D1861A 10 Gbits/s 1310 nm DML Module (10 dBm)
Preliminary Data Sheet March 2001
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 m Maximum power = 30 mW Because of size constraints, laser safety labeling (including a Class IIIb label) 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 Wavelength: 1.3 m
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Agere Systems Inc.
Preliminary Data Sheet March 2001
D1861A 10 Gbits/s 1310 nm DML Module (10 dBm)
Ordering Information
Table 3. Ordering Information1 Device Code D1861D023 D1861D040 D1861D050 Description 10 Gbits/s DML, 1310 nm 10 Gbits/s DML, 1310 nm 10 Gbits/s DML, 1310 nm Connector FC/SPC SC/UPC Standard LC Pigtail Comcode TBD TBD TBD
SMF-28 (1m min) SMF-28 (1m min) SMF-28 (1m min)
1. Other options available. For additional ordering information, please contact an account manager at Opto West, Agere Systems Inc., 1-800362-3891 (for sales staff, please press option 2).
Agere Systems Inc.
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D1861A 10 Gbits/s 1310 nm DML Module (10 dBm)
Preliminary 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.
Copyright (c) 2001 Agere Systems Inc. All Rights Reserved
March 2001 DS01-127OPTO

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