Alcatel 1915 LMI 1.55 m WDM Direct Modulation Laser Module 2mW Description This laser module contains an Alcatel SLMQW DFB laser with 25 impedance matching designed for use in Wavelength Division Multiplexed (WDM) systems, high power direct modulation operations up to 2.5 Gbit/s. The module incorporates a thermoelectric cooler, precision thermistor, and optical isolator for stable operation under all conditions. Features * 2 mW output power * Low dispersion penalty * Optimized for direct modulation at 2.5 Gbit/s * 100 GHz spacing available * Internal optical isolator * 25 RF impedance matching and DC bias RF filtering * Industry - standard hermetic 14-pin butterfly package * InGaAsP Distributed FeedBack SLMQW (DFB) laser Applications * EDFA - free long span STM-16 and OC-48 DWDM transmission systems * High-speed DWDM Metropolitan Area Networks * Saturation Laser for WDM EDFA * Instrumentation * Wavelength selection according to ITU-T G.692 from 1528.77 nm to 1570.42 nm Description ....................................................1 Features ........................................................1 Applications...................................................1 Electro-Opto Characteristics ...........................2 Definitions .....................................................3 Mechanical details .........................................4 Pin out...........................................................4 Marking, packing and deliverable data ..........5 Safety and handling.......................................5 Ordering information.....................................6 Electro-Opto Characteristics Unless otherwise stated : BOL, Tcase = 25C and Tsubmount = 25C Table 1 Parameter Fiber-Coupled Peak Power Threshold current External Diff. Efficiency Laser forward voltage Modulation current BOL Serial resistance (Emitted -Target Wavelength) Emission wavelength Side mode suppression Photodiode current Photodiode Dark Current Photodiode Capacitance Thermistor resistance Coefficient of RTH Emitted drift vs IF Emitted drift vs Twave Emitted drift vs Tcase Relative Intensity Noise Dispersion Penalty Note 2 Linearity (kink) Note 3 Optical Isolation Tracking Error Note 4 Extinction ratio Case Operating Temperature Tsubmount TEC current EOL TEC voltage EOL Sym Ppeak ITH VF IF RS e SMSR IPD ID CM RTH Conditions @Twave @Twave @Twave @PPeak =2 mW ; pin 11 & 3 @ PPeak = 2 mW ; pin 11 & 3 Note 1 Ppeak=2mW; pin 11 to 12 @Twave See Table 4 for target See table 4 @Twave ; Note 2 V= -5V,@Pmean, Note 5 V = -5 V V = -5V, @ 1MHz /I /Tw 20C Tsubmount 35C /Tc 0C Tc 70C RIN 100 MHz to 3 GHz @Pmean D = 1800 ps/nm, Note 2 S P/I 0.2 mW PPeak 2 mW OI 0C Tc 70C Q @2 mW PPeak ER 2.5Gb/s,D=1800ps/nm,PRBS 2 23-1 Tc Ts It Vt @I(2mW), Ts = 20C, Tc = 70C @I(2mW), Ts = 20C, Tc = 70C Min Typical 2 3 0.045 - Max 25 0.062 2.5 45 Units mW mA W/A V mA 22 -0.1 27 +0.1 nm 1529 40 30 1570 300 0.1 15 10.3 -5 6 100 0.5 -140 2 15 10 10 0 70 nm dB A A pF k %/K pm/mA pm/C pm/C dB/Hz dB % dB % dB C 20 - 35 1.2 2.4 C A V 9.7 -3 80 - 3 30 Note 1: Modulation current = PPeak / * [ (1 - ER) / (1+ER) ] End Of Life criteria; delta IF/IF = 20% or delta IM / IM = 20% or delta ITH / ITH = 20% Note 2 : 2.488 Gb/s, P Mean, BER = 10-10, ER = 101%, NRZ line code Note 3 : relative deviation of dP / dI between 2 consecutive measurement points Note 4 : Q = Max { | [P(70 C) - P(25 C)] / P(25 C) | ; | [P(0 C) - P(25 C)] / P(25 C) | } measurements @ 0 & 70C are with IF set at constant IF (25 C) Note 5 : Pmean=Ppeak/2 Definitions Twave Twave is the submount temperature at which the laser emission wavelength reaches the target wavelength with an accuracy of better than: target 0.1nm. This temperature is calculated during manufacturing according to: Twave = 25C + (1/C)*( target - 25C), where C is the laser wavelength drift with temperature (in nm/C). Emitted wavelength drift vs Tcase Absolute value of maximum emitted wavelength deviation per unit of case temperature (C) when Tcase varies from min to max operating conditions. Wavelength is stabilized through the thermal regulation of the laser chip based on the thermistor reading. Emitted wavelength drift vs Laser Current Maximum emitted wavelength deviation per unit of laser current (mA) when the DC output power varies around Pmean. Absolute maximum ratings Exposing the device to stresses above those listed in absolute maximum rating could cause permanent damage. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Environmental Table 2 Parameters Storage temperature Operating temperature Soldering temperature (3 seconds maximum) Axial force on fiber (10 seconds max.) Fiber bend radius ESD (1) applied on PIN detector (Pin 4&5) ESD (1) on other Pin Min - 40 -10 Max 85 70 350 10 100 2000 Unit C C C N mm V V Max 150 2 1 20 9 250 2.8 1.4 0.2 Unit mA V mA V V A V A N.m 30 (1) Human body model Electro-optic Table 3 Parameters Laser forward current Laser reverse voltage Photodiode forward current Photodiode reverse voltage Thermistor Voltage Thermistor Current TEC Voltage TEC Current Packing Mounting Torque Min Mechanical details Note : all dimensions in mm 7 6 5 4 3 2 1 PD TEC TS 200 nH 10 K pigtail 20 LD 8 9 10 11 12 13 14 Pin out N 1 2 3 4 5 6 7 Description Thermistor Thermistor Laser DC bias (-) Photodetector Anode (-) Photodetector Cathode (+) TEC (+) TEC (-) N 8 9 10 11 12 13 14 Description Case Ground Case Ground Not Connected RF common (+) Laser Modulation (-) RF common (+) Not Connected Marking, packing and deliverable data Device marking Each device includes the following information as a minimum: 1. Alcatel logo 2. Product family name: A 1915 LMI 3. Product code : 3CN 00492 XX 4. Serial number Packing Each device is individually packed in an antistatic container and in such a manner as to prevent damage in transit. The packaging shall include the following information: 1. Alcatel logo 2. Product family name: A 1915 LMI 3. Product code : 3CN 00492 XX 4. Serial number 5. Hazard warning label (ESD) 6. Laser Safety Class Label Deliverable data The following data shall be supplied with each device: 1. L(I)/V(I) curves @ Tcase/ Tsubmount = 25C/25C 2. TEC @ Tcase/Tsubmount=25C/75C, P=2mW 3. Values of Twave and Thermistor @ Tsubmount =Twave 4. Values of laser forward current, monitoring photocurrent, laser threshold current and external differential efficiency @ Tsubmount =Twave 5. Peak wavelength at Tcase/Tchip=25C and under modulation 6. Dispersion penalty Product testing shall be carried out at a level that ensures conformity to the customer specification Safety and handling Safety and IEC.825 Classification Take appropriate precautions to prevent undue exposure to naked eye. This product is classified Class 3A Laser Product according to IEC.825 Handling This product, in line with all similar devices, is sensitive to electrostatic discharge. Take precautions to prevent ESD; use wrist straps, grounded work surfaces and recognized anti-static techniques when handling the laser. Handle the laser module by its package only, never hold it by leads or pigtail. For package mounting the following procedure should be carefully followed: 1. In order to achieve the ultimate thermal performance of the device, thermal paste can be usefully added on the support 2. Tighten screws up to 200 mN/m - Do not exceed this mounting torque. 3. Assure that the leads are aligned and in contact with appropriate contact pads. Care should be taken to avoid supply transient and over voltage. Over voltage above the maximum specified in absolute maximum rating section (table 3) may cause permanent damage to the device. ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES LASER RADIATION AVOID EXPOSURE TO BEAM Class 3 A laser product October 2001 Copyright (c) 2000 Alcatel Optronics Ordering information Alcatel 1915 LMI Nominal power 2 mW Connector type FC/PC Part number 3CN 00492 ## ## defines the wavelength and the connector according to the following table . Table 4 THz Connector THz FC/PC (1) 1528,77 1529,55 1530,33 1531,12 1531,90 1532,68 1533,47 1534,25 1535,04 1535,82 1536,61 1537,40 1538,19 1538,98 1539,77 1540,56 1541,35 1542,14 1542,94 1543,73 1544,53 1545,32 1546,12 1546,92 1547,72 1548,51 1549,32 196,10 196,00 195,90 195,80 195,70 195,60 195,50 195,40 195,30 195,20 195,10 195,00 194,90 194,80 194,70 194,60 194,50 194,40 194,30 194,20 194,10 194,00 193,90 193,80 193,70 193,60 193,50 (1) in vacuum BM BP BR BT BV BX BZ CB CD CF CH CK CM CP CR CT CV CX CZ DB DD DF DH DK DM DP DR Connector FC/PC 1550,12 1550,92 1551,72 1552,52 1553,33 1554,12 1554,94 1555,75 1556,55 1557,36 1558,17 1558,98 1559,79 1560,61 1561,42 1562,23 1563,05 1563,86 1564,68 1565,49 1566,31 1567,13 1567,95 1568,77 1569,59 1570,42 193,40 193,30 193,20 193,10 193,00 192,90 192,80 192,70 192,60 192,50 192,40 192,30 192,20 192,10 192,00 191,90 191,80 191,70 191,60 191,50 191,40 191,30 191,25 191,20 191,15 191,10 DT DV DX DZ EB ED EF EH EK EM EP ER ET EV EX EZ FB FD FF FH FK FM FP FS FU FW Customized versions are available for large quantities. Performance figures contained in this document must be specifically confirmed in writing by Alcatel Optronics before they become applicable to any particular order or contract. Alcatel Optronics reserves the right to make changes to the products or information contained herein without notice. EUROPE Route de Ville just F-91625 NOZAY CEDEX Tel : (+33) 1 64 49 49 10 Fax : (+33) 1 64 49 49 61 USA 15036, Conference Centre Drive CHANTILLY - VA 20151 Tel : (+1) 703 679 3600 Fax : (+1) 703 679 6667 CANADA 45, De Villebois, suite 200 Gatineau (PQ) Canada, J8T 8J7 Tel : (+1) 819 243 3755 Fax : (+1) 819 243 3354 JAPAN Dai-Tokyo Kasai Shinjuku Building 13F 3-25-3, Yoyogi, Shibuya-Ku Tokyo 151 - 0053 - Japan Tel : (+81) 3 5302 4341 Fax : (+81) 3 5302 4331