LOW POWER STL81004x / STL81005x 1550 nm FP Laser Dimensions in mm STL81005G Absolute Maximum Ratings Module Operating temperature range at case, TC ............ -40C to 85C Storage temperature range, Tstg ......................... -40C to 85C Soldering temperature tmax=10 s, 2 mm distance from bottom edge of case, TS...............260C Laser Diode Direct forward current, IF max ......................................... 120 mA Radiant power CW, PF, rad ................................................1 mW Reverse Voltage, VR............................................................... 2 V Monitor Diode FEATURES * Designed for applications in fiber optic networks * Laser Diode with Multi-Quantum Well structure * Suitable for bit rates up to 1 Gbit/s * Ternary Photodiode at rear mirror for monitoring and control of radiant power * Hermetically sealed subcomponents, similar to TO 46 * SM pigtail with optional connector Fiber Optics Reverse Voltage, VR..............................................................10 V Forward Current, IF .............................................................2 mA JUNE 2001 DESCRIPTION TECHNICAL DATA The electro-optical characteristics described in the following tables are only valid for use within the specified maximum ratings or under the recommended operating conditions. Differences between a Fabry-Perot and a DFB Laserdiode A conventional laser consists of an amplifying medium and two end mirrors. The cavity is longer than one wavelength, and a standing wave is created. The number n of half wavelengths Transmitter Electro-Optical Characteristics L . If L >> then we speak of a Fabry-Perot Laser because the laserdiode emits multi-longitudinal modes. Typically the laserdiode is 250 m long. For =1310 nm/1550 nm n is about 350. Therefore for many neighboring wavelengths the "standing wavelength" condition specified above is fulfilled. For a DFB-Laser a special grating acts as a distributed filter allowing only one of the cavity's longitudinal modes to propa~ gate. This can be described with a reduced oscillator length L which is in the range of . For such a reduced oscillator length the standing wavelength condition will be fulfilled for n 2 what means for only one wavelength. is n = 2 x Figure 1. Fabry-Perot Laserdiode Intensity 4 Parameter Symbol Min. Optical output power (maximum) PF, max 0.4 Typ. 0 11 2 3 Wavelength 4 5 Units Emission wavelength center of range PF=0.5 PF, max. trans 1510 Spectral width (RMS) 5 Temperature coefficient of wavelength TC 0.5 nm/K Threshold current (whole temperature range) Ith 45 mA Forward voltage PF=0.5 PF, max. VF 1.5 V Radiant power at Ith Pth 10 W Slope efficiency (-40...85C) 8 60 mW/ A Variation of 1st derivative of P/I (0.1 to 0.4 mW) Svar -30 30 % 8 ps mW 1590 2 Differential series resis- RS tance 0 Max. Rise time (10%-90%) tr 100 200 Fall time (10%-90%) tf 270 500 nm Monitor Diode Electro-Optical Characteristics Figure 2. DFB Laserdiode Intensity 4 Parameter Symbol Dark current, VR=5 V, PF=0, T=Tmax IR Photocurrent, VR=5 V, PF=0.5 PF, max. IP Capacitance, VR=5 V, f=1 MHz C5 Tracking error(1), VR=5 V TE Min. 100 -1 Typ. Max. Units 500 nA 1000 A 10 pF 1 dB Note 0 0 1 2 3 Wavelength 4 1. The tracking error TE is the maximum deviation of PF at constant current Imon over a specified temperature range and relative to the reference point: Imon,ref=Imon (T=25C, PF=0.5 PF, max.). Thus, TE is given by: PF [T c ] TE [ dB ] = 10 x log PF [ 25 o C ] 5 Fiber Optics STL81004/5x, Low Power 1550nm FP Laser 2 End of Life Time Characteristics EYE SAFETY Parameter Symbol Min. Threshold current at T=Tmax Ith Current above threshold, over full temperature range, at Imon,ref=Imon (T=25C, PF=0.5 PF, max., BOL) IF Tracking Error TE Monitor Dark Current, VR=2 V, T=Tmax IR Typ. 7 Max. Units 60 mA Ensure to avoid exposure of human eyes to high power laser diode emitted laser beams. Especially do not look directly into the laser diode or the collimated laser beam when the diode is activated. 70 CLASS 3B LASER PRODUCT according to IEC 60825-1 Required Labels -1.5 1.5 dB 1 A INVISIBLE LASER RADIATION AVOID EXPOSURE TO BEAM Class 3B Laser Product FIBER DATA The mechanical fiber characteristics are described in the following table. Class IIIb LASER PRODUCT according to FDA Regulations complies with 21 CFR 1040.10 and 1040.11 Required Label Fiber Characteristics Parameter Min. Typ. Max. Units Mode Field Diameter 8 9 10 m Cladding Diameter 123 125 127 Mode Field/Cladding Concentricity Error 1 Cladding Non-circularity 2 Mode Field Non-circularity Cut off Wavelength % LASER RADIATION - AVOID DIRECT EXPOSURE TO BEAM nm SEMICONDUCTOR LASER INVISIBLE RADIATION CLASS IIIb LASER PRODUCT 6 1270 Jacket Diameter 0.8 Bending Radius 30 Tensile Strength Fiber Case 5 Length 0.8 1 mm Laser Data N 1.2 Wavelength m Maximum total output power Pin Description and Flange Pinning (bottom view) 1550 nm Beam divergence Pin Description Model Pinning 1 2 2 3 LD 1 1 3 4 less than 50 mW 10 CONNECTOR OPTIONS Transmitter 2.54 mm (1/e2) Connector Type STL81004G STL81005G SM FC/PC STL81004N STL81005N SM SC/PC 0 STL81004Z STL81005Z without connector MD 4 Available Pinnings with and without Flange Type Transmitter Flange STL81004x 1 without STL81005x 1 with Regulatory Compliance Feature Standard Comments Electrostatic Discharge (ESD) to the Electrical Pins MIL-STD 883D Method 3015.7 Class 1 (<500 V) Fiber Optics STL81004/5x, Low Power 1550nm FP Laser 3 Published by Infineon Technologies AG Warnings (c) Infineon Technologies AG 2001 All Rights Reserved Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your Infineon Technologies offices. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Infineon Technologies is an approved CECC manufacturer. Information For further information on technology, delivery terms and conditions and prices please contact the Infineon Technologies offices or our Infineon Technologies Representatives worldwide - see our webpage at www.infineon.com/fiberoptics Infineon Technologies AG * Fiber Optics * Wernerwerkdamm 16 * Berlin D-13623, Germany Infineon Technologies, Inc. * Fiber Optics * 1730 North First Street * San Jose, CA 95112, USA Infineon Technologies K.K. * Fiber Optics * Takanawa Park Tower * 20-14, Higashi-Gotanda, 3-chome, Shinagawa-ku * Tokyo 141, Japan