Alcatel 1915 LMM Single Channel - 800 ps/nm application 10 Gbit/s digital Laser Module with integrated electro-absorption Modulator Description The Alcatel 1915 LMM contains an Alcatel DFB laser with monolithically integrated electro-absorption modulator (ILM). The modulation voltage is applied to the modulator section while the DFB laser operates CW. Without the complexity of LiNbO3 external modulators, the Alcatel 1915 LMM is dedicated to STM64/OC-192 bit rate with reduced size and reduced cost. This device allows 10 Gbit/s data transmission with an extinction ratio higher than 10 dB and less than 2 V modulation voltage. The Alcatel 1915 LMM is optimised for 10 Gbit/s TDM and WDM transmission systems supporting dispersion from 50 ps/nm to 1600 ps/nm. Features * * * * * * * 7-pin package with either GPO or K connector RF input High frequency RF connector package with 50 RF impedance InGaAsP monolithically integrated DFB laser and modulator chip Low drive voltage ( 2 Vpp) Very low dispersion penalty over 40 km for 10 Gbit/s operation (over 800 ps/nm) Internal optical isolator, monitor photodiode, thermistor and thermo-electric cooler High power available Applications * * * * STM-64 and OC-192 transmission systems Terminals for submarine transmission systems Intermediate reach 10 Gbit/s applications ITU IR-2 Short reach 10 Gbit/s applications ITU S-64.2 Optical characteristics Parameter Threshold current Operating current Optical output power Laser forward voltage Modulator bias voltage Modulator drive voltage Dynamic extinction ratio Emission wavelength Side mode suppression ratio Cut off frequency RF return loss Dispersion penalty Tracking error Symb. Ith Iop PAVE VF Vbias Vmod DER Conditions CW, Vbias = 0 V CW, Vbias = 0 V Iop, Vmod, [1], [2] CW, Iop, Vbias = 0 V See [1] See [1] Iop, [1], [2] m SMSR S21 S11 S11 S TR @ Iop - 3 dB, Vbias = - 1 V DC to 7 GHz 7 to 10 GHz See [1], [2] Tsubmount=25C,Tcase=70C If=100mA,Q=10log{[P(70C)-P(25C)]/P(25C)} Min 5 50 0 Typical 17 80 Max 35 100 2 0 2 -2 10 1527 35 8 10 1570 7 - 0.5 2 0.5 Units mA mA dBm V V V dB nm dB GHz dB dB dB dB Rise time / Fall time Tr/Tf See [1], 10%, 90% 30 45 ps Monitor diode current Im Iop, VM = - 5 V 20 1500 A Dark current Id 0.1 A T=45C,Iop=120mA,TC=70C,Vbias=-1V TEC current It 1 1.3 A T=45C,Iop=120mA,TC=70C,Vbias=-1V TEC voltage Vt 2 2.5 V Thermistor resistance RTH 9.5 10.5 K Notes : All limits start of life, Tcase in the range [0C ; 70C], Tsubmount = 25 C, monitor bias = - 5 V, unless otherwise stated. [1] BER = 10-10; 9.953 Gbit/s modulation; 223-1 PRBS; NZR line code [2] 800 ps/nm dispersion, assuming fiber with an average dispersion of 18 ps/nm/km Absolute maximum ratings Parameters Operating case temperature Storage temperature Laser forward current Laser reverse voltage Modulator forward voltage Modulator reverse voltage Photodiode forward current Photodiode reverse voltage TEC Voltage TEC Current ESD applied on modulator ESD applied on laser [1] Lead soldering time (at 260C) Packing Mounting Screw Torque Min 0 -40 Max 70 85 150 2 1 5 1 20 2.8 1.4 500 2000 10 0.2 Unit C C mA V V V mA V V A V V s nm [1] Human body model Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Page 1/4 Major Characteristics Fig. 1 Return Loss Response Fig. 2 Typical Bit Error Rate Bit Error Rate Frequency (GHz) 0,0 2,5 5,0 7,5 10,0 12,5 15,0 9.953 Gbit/s, 223-1 PRBS, NRZ line code, If = 80 mA, Pave, Tcase = 25 C DER 10 dB 1,E-04 0 1,E-05 -5 -10 1,E-06 Return Loss (5 dB/div) 40 km fiber -15 1,E-07 -20 1,E-08 -25 1,E-09 0 km 1,E-10 -30 1,E-11 50 Test If = 80 mA, Pave, Tcase = 25 C -35 1,E-12 -20 -40 -19 -18 -17 -16 -15 -14 Received Optical Power (dBm) Fig. 3 Typical Extinction Ratio versus Bias Voltage Fig. 4 Typical Filtered Output Eye Diagram with a Driver circuit (without fiber ; see recommended circuit in Application Note) 9.953 Gbit/s, 223-1 PRBS NRZ, Tc=25 C, Tsubmount = 25C, If = 80 mA, Pave and DER10 dB Vbias (V) SER (dB) 0 -0,5 -1 -1,5 -2 -5 - 10 -15 15 ps/div Page 2/4 Qualification, Reliability and Standards Alcatel Optronics policy for all products is to carry out a complete qualification program. This qualification is based on manufacturers' qualification in agreement with Telcordia GR-468-Core (Generic Reliability Assurance Requirements for Optoelectronic Devices Used In Telecommunications Equipment - Central Office Level), MIL STD 883E (Test method and procedures for microelectronics) and following the standards ITU-T G652 and G-691. All products pass strict tests before shipping. Failure criteria are defined during the product qualification process. Device marking The device shall be legibly and permanently marked with the following information: Alcatel logo Product family name: A 1915 LMM Product code : 3CN number (see Ordering information section) Serial number Shipment packing Each device is individually packed in an anti-static container and in such a manner as to prevent damage in transit. The packing shall include the following information: Alcatel logo Product family name : A 1915 LMM Product code : 3CN number (see Ordering information section) Serial number Hazard warning label (ESD) Laser Safety Class Label Deliverable data The following data shall be supplied with each device : L(I) / V(I) / Ipd(I) curves Values for Vmod, Von (On-state voltage [0 data]), DER, S0 (received optical power without fiber), S and Pave for If Plot of SER vs Vmod @ If = 80 mA over the range 0 V to -3 V and Tcase = Tsubmount = 25 C DER and dispersion penalty (S) Laser Safety information Take appropriate precautions to prevent undue exposure to naked eye. This product is classified Class 3A Laser Product according to IEC-60825-1. FDA/CDRH Class IIIb laser product. All versions are Class IIIb laser products per CDRH, 21 CFR 1040 Laser. Safety requirements under accession number 0120546-00. LASER RADIATION AVOID EXPOSURE TO BEAM Class 3A laser product Handling This product is sensitive to electrostatic discharge and should not be handled except at a static free workstation. Take precautions to prevent ESD; use wrist straps, grounded work surfaces and recognised anti-static techniques when handling the Alcatel 1915 LMM module. Handle the laser module by its package only, never hold it by its pigtail. Care should be taken to avoid supply transient and over voltage. Over voltage above the maximum specified in absolute maximum rating section may cause permanent damage to the device. ATTENTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC DISCHARGE SENSITIVE DEVICES Page 3/4 Mechanical details 7 7 1 GPO Connector K Connector Pin out N 1 2 3 4 5 6 7 January 2002 Copyright (c) 2002 Alcatel Optronics Description Thermistor Thermistor Laser DC bias (+) Photodetector Anode (-) Photodetector Cathode (+) TEC (+) TEC (-) INTERNET Customized versions are available for large quantities. Alcatel 1915 LMM Part number 800 ps/nm 800 ps/nm For additional information, contact your Alcatel Optronics Account Manager, or the following : http ://www.alcatel.com/optronics Ordering information Application 1 3CN00315AA Electrical Connector K type Optical Connector FC/PC type 3CN00321AA GPO type FC/PC type 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. E-MAIL optronics@alcatel.com EUROPE France : (+33) 1 64 49 47 00 UK : (+44) 1506 42 60 00 USA Chantilly - VA : (+1) 703-679-6715 Plano - TX : (+1) 972-477-54 53 CANADA Gatineau : (+1) 819 243 3755 ASIA - PACIFIC Japan : (+81)-3-5302-4341 China : (+86) 755 6981 471 Page 4/4