2.5 mW 14 Pin DIL Cooled Laser Module Technical Data LSC2110-622 Features Description • 2.5 Milliwatt Peak Optical Power Output • Center Wavelength between 1294 nm and 1329 nm • Narrow Linewidth: <1.7 nm • Modulation Bandwidth: >1 Ghz • Wide Operating Temperature Range: -40°C to +85°C • Industry Standard Hermetic 14 Pin Dual-In-Line Package LSC2110-622 laser modules are highly reliable fiber optic light sources operating in the 1300 nanometer band. The internal semiconductor lasers are based upon InGaAsP buried heterostructure (BH) technology and fabricated by the Metal Organic Vapor Phase Epitaxy (MOVPE) process, resulting in long lifetimes and modest threshold currents. Applications LSC2110-622 package includes a photodiode for monitoring the laser output, a thermistor for monitoring the laser submodule temperature and a Peltier effect thermoelectric cooler (TEC). A heatsink mounting flange is incorporated into the industry standard 14 pin package. • 622 Mbit/s SONET/SDH • Local Area and Metropolitan Area Networks • Point-to-Point Data Communications • Fiber Optic Sensors • Cable Television • Military Communications and Control Systems • Instrumentation The LSC2110-622 has been specifically designed to meet the requirements of STM4.1 and SONET OC12 LR1 applications. Laser Safety Warning This device is a Class IIIb (3b) Laser Product. It may emit invisible laser radiation if operated with the fiber pigtail disconnected. To avoid possible eye damage do not look into an unconnected fiber pigtail during laser operation. Do not exceed specified operating limits. 468 5962-9398E (1/95) Pin Connections Top View TEC ANODE (+ve SUPPLY TO COOL) 1 14 TEC CATHODE (-ve SUPPLY TO COOL) TEC NOT CONNECTED 2 13 NOT CONNECTED NOT CONNECTED 3 12 THERMISTOR RESERVED - DO NOT CONNECT 4 11 THERMISTOR CASE GROUND 5 10 LASER ANODE (+ve SUPPLY) CASE GROUND RESERVED - DO NOT CONNECT 6 9 LASER CATHODE (-ve SUPPLY) MONITOR PHOTODIODE CATHODE (+ve SUPPLY) 7 8 MONITOR PHOTODIODE ANODE (-ve SUPPLY) Mechanical Outline S ∅U B A FIBER PIGTAIL ∅N F C K L T M J P D R E G ∅H DIM. A B C D E F G ∅H J MIN. MAX. 20.98 20.68 1.10 0.90 13.00 12.55 9.60 8.51 6.60 6.10 7.62 NOM. 2.54 NOM. 0.457 NOM. 7.21 7.01 DIM. K L M ∅N P R S T ∅U MIN. MAX. 19.05 NOM. 25.70 25.10 30.00 NOM. 4.20 – – 1000 6.20 5.80 6.00 NOM. – 6.00 3.17 NOM. ALL DIMENSIONS IN MILLIMETERS 469 LSC2110-622 Typical Operating Characteristics LASER FORWARD VOLTAGE vs. FORWARD CURRENT SPECTRAL CONTENT 100 RELATIVE POWER 80 1.0 0.5 0 OUTPUT POWER (mW) 2.5 10 20 30 40 50 60 70 40 1300 1305 1310 FORWARD CURRENT (mA) WAVELENGTH (nm) OUTPUT POWER vs. FORWARD CURRENT MONITOR PHOTOCURRENT vs. OUTPUT POWER 1.5 1.0 0.5 0 0 80 2.0 0 20 40 FORWARD CURRENT (mA) 470 60 20 60 MONITOR DIODE PHOTOCURRENT (µA) FORWARD VOLTAGE (V) 1.2 800 1315 700 600 500 400 300 200 100 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 OUTPUT POWER (mW) Absolute Maximum Ratings Absolute maximum limits mean that no catastrophic damage will occur if the product is subjected to these ratings for short periods, provided each limiting parameter is in isolation and all other parameters have values within the performance specification. It should not be assumed that limiting values of more than one parameter can be applied to the product at the same time. Parameter Laser Forward Current Laser Reverse Current Laser Reverse Voltage Photodiode Reverse Voltage Photodiode Forward Current Operating Temperature Storage Temperature Relative Humidity Symbol If Ir Vlr Vr Ipf Tc Ts RH Fiber Pull Strength Mechanical Shock Conditions DC DC DC DC DC Pf min. Min. -40 -40 0.0 - Limits Max. 150 100 2 10 1 +85 +85 noncondensing 10 Units mA µA V V mA °C °C %RH N Mil Std 883, Method 2002, Condition A Mil Std 883, Method 2007, Condition A Vibration Performance Specification Parameter LASER Threshold Current Peak Optical Output Power Optical Output Power Slope Efficiency Forward Voltage Differential Resistance Centre Wavelength λc Change with Temperature Spectral Width Rise Time Fall Time Small Signal Freq. Response Symbol Ith Pf Pf Pth Test Conditions Tc = -40°C to +85°C, ∆T = +65°C (heating) ∆T = -40°C (cooling), CW, Pf = 2.5 mW unless otherwise stated Pth = Pf @ Ith -2 mA η Vf Rd Tc = 25°C, Rt = 10 kΩ λc Mod @ 622 Mbit/s, 50% duty cycle, ORL 20 dB From Tc = 65°C to 85°C, ∆T = -40°C ∆λc/∆T ∆λ τr τf Bw dV/dI Modulated as for λc, 1 x σ, RMS 10% to 90%: Ith to Pf = 2.5 mW 90% to 10%: Pf = 2.5 mW to Ith ± 3 dB Min. Max. Units 5 2.5 4 - 25 50 mA mW dBm µW 0.05 - 0.12 1.8 10 mW/mA V Ω 1294 1329 nm - 0.5 nm/°C 1.0 1.7 0.4 0.4 - nm ns ns GHz 471 Performance Specifications (cont’d.) Parameter MONITOR PHOTODIODE Symbol Photocurrent Responsivity Dark Current Tracking Error Im R Id ∆R Test Conditions Tc = -40°C to +85°C, ∆T = +65°C (heating) ∆T = -40°C (cooling), CW, Pf = 2.5 mW Vr = 5 V (Note 1), unless otherwise specified Pf = 0 mW, Tc = ~25°C, Rt = 10 kΩ Im = Im @ (Pf = 2.5 mW, Tc = 25°C) Ratings Min. Max. 0.1 0.04 - 2.0 0.8 20 ± 0.5 Units mA A/W nA dB Note: 1. Monitor Photodiode will also operate under zero bias conditions. Parameter THERMISTOR Symbol Resistance Temperature Coefficient of Rt β Constant Rt ∆Rt/∆T β Parameter Symbol TEC TEC Cooling Current TEC Heating Current Voltage Ic Ih Vc Test Conditions Tc = 25°C, unless otherwise specified 0°C to 50°C Test Conditions Pf = 2.5 mW, unless otherwise specified ∆T = -40°C, Tc = 85°C ∆T = 65°C, Tc = -40°C ∆T = -40°C to 65°C Ratings Min. Max. Units 9.5 10.5 Typ -4.4 Typ 3900 kΩ %dR/°C °K Ratings Min. Max. Units - 1.0 1.0 2.0 A A V Fiber Pigtail: Tight jacketed, self-mode stripping, single mode fiber Parameter Length Spot Size (Mode Radius) Cladding Diameter Core/Cladding Concentricity Secondary Jacket Diameter Effective Cutoff Wavelength 472 Minimum 1.0 4.5 122 0.8 1150 Maximum 5.5 128 1.0 1.0 1240 Units m µm µm µm mm nm Ordering Information LSC2110 - 622 - XX Connector Type: FP = FC/PC ST = ST® SC = SC DN = DIN BI = Biconic SA = SMA SF = Super Polish FC/PC Handling Precautions 1. The LSC2110-622 can be damaged by current surges or overvoltage. 2. Power supply transient precautions should be taken. 3. Normal handling precautions for electrostatic sensitive devices should be taken. CDRH Certification Laser Warning Hewlett-Packard Ltd Whitehouse Road Ipswich, Suffolk IP1 5PB England Manufactured: _______ Serial No. _______ Model No. ____________ This product conforms to the applicable requirements of 21 CFR 1040 at the date of manufacture. ST® is a Registered Trademark of AT&T. 473