14 Pin DIL Uncooled Laser Modules Technical Data LSC3X00 Features Description • Low Cost Plastic Package (14 Pin DIL) • LSC3300: 100 µW (-10 dBm) Min. Power Output LSC3100: 1 mW (0 dBm) Min. Power Output • 1280 - 1330 nm Wavelength • Hermetic Laser Module • -40°C to +85°C Operation LSC3X00 laser modules are high reliability fiber optic light sources operating in the 1300 nanometer band. They are particularly well suited for applications where low power dissipation is required. Applications • Telecommunications • Local Area and Metropolitan Area Networks • Point to Point Datacommunications • Fiber Optic Sensors • Cable Television • Military Communications and Control Systems • Instrumentation The internal semiconductor lasers are based upon InGaAsP buried heterostructure (BH) technology and fabricated by the MetalOrganic Vapor Phase Epitaxy (MOVPE) process, resulting in long lifetimes and modest threshold currents. The LSC3X00 package includes a photodiode for monitoring the laser output. A longhorn type heatsink mounting flange is incorporated in the industry standard 14 pin DIL package. Two basic varieties are offered for alternative power ranges. The “low power” LSC3300 covers the power range between 100 µW and 625 µW. The “high power” LSC3100 uses the same laser chip, but with tighter fiber coupling to achieve output powers from 1 mW to 2.5 mW. The low cost outer package is made feasible by our unique design of hermetic miniature laser submodule which houses the electro-optic devices. The submodule concept is used as a building block in many other Hewlett-Packard products including cooled 1 mW 14 pin lasers and DFB modules. 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. 480 5963-1125E (7/94) LSC3X00 Pin Connections and Block Diagram Top View FIBER PIGTAIL NOT CONNECTED 1 14 NOT CONNECTED NOT CONNECTED 2 13 NOT CONNECTED NOT CONNECTED 3 12 NOT CONNECTED NOT CONNECTED 4 11 NOT CONNECTED CASE GROUND 5 10 LASER ANODE (+), GROUND NOT CONNECTED 6 9 LASER CATHODE (-) MONITOR PHOTODIODE CATHODE (+ve SUPPLY) 7 8 MONITOR PHOTODIODE ANODE (-ve SUPPLY) LSC3X00 Mechanical Outline - Dimensions in mm F Q N L E R A B C M H G J D P K DIM. A B C D E F G H MIN. MAX. 12.8 12.6 19.05 NOM. 25.5 25.3 6.8 6.4 6.0 – 21.53 21.33 7.21 7.01 9.60 9.40 DIM. J K L M N P Q R MIN. MAX. 5.9 5.5 2.52 NOM. 25.0 NOM. 4.2 – – 800 1.8 1.5 1.05 0.99 7.62 NOM. ALL DIMENSIONS IN MILLIMETERS 481 LSC3X00 Laser Diode Typical Operating Characteristics LASER FORWARD VOLTAGE vs. FORWARD CURRENT DIFFERENTIAL RESISTANCE vs. FORWARD CURRENT 30 1.0 dV/dl (Ω) 0.5 0 NORMALIZED THRESHOLD CURRENT 20 10 0 101 10 20 30 40 50 60 0 80 0 10 20 30 40 50 FORWARD CURRENT (mA) FORWARD CURRENT (mA) THRESHOLD CURRENT vs. TEMPERATURE PEAK WAVELENGTH vs. TEMPERATURE 60 1320 1310 100 10-1 -30 -10 10 30 50 TEMPERATURE (°C) 482 70 WAVELENGTH (nm) FORWARD VOLTAGE (V) 1.2 70 1300 1290 1285 -20 0 20 40 60 TEMPERATURE (°C) 80 LSC3X00 Laser Diode Typical Operating Characteristics CONTINUOUS WAVE POWER vs. FORWARD CURRENT (25 °C) 700 LSC3300 FIBER POWER (µW) 600 500 400 300 200 100 0 100 200 2 mW 300 200 1 mW 100 0 400 300 LSC3300 FIBER POWER (µW) 1 mW 0 10 20 30 40 50 60 LSC3100 FIBER POWER (mW) 400 70 FORWARD CURRENT (mA) 2 mW LSC3100 FIBER POWER (mW) 100 SPECTRAL CONTENT 80 RELATIVE POWER MONITOR DIODE PHOTOCURRENT (µA) MONITOR PHOTOCURRENT vs. OUTPUT POWER 60 40 20 0 1290 1300 1310 1320 WAVELENGTH (nm) 483 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 Min. -40 -40 0.0 DC DC DC DC DC Pf min. - Limits Max. 150 100 2 10 1 +85 +85 noncondensing 10 Units mA µA V V mA °C °C %RH N Mil Std 883D, Method 2002, Condition B Mil Std 883D, Method 2007, Condition A Vibration Performance Specifications Parameter LASER Threshold Current Peak Optical Output Power Optical Output Power Slope Efficiency Forward Voltage Differential Resistance Centre Wavelength Ic Change with Temperature Linewidth Rise Time Fall Time Small Signal Freq. Response Symbol LSC3300 Min. Max. LSC3100 Min. Max. 5 100 35 - 5 1000 35 - mA µW Pth = Pf @ Ith -2 mA - 10 - 50 µW dV/dI 4 - 16 1.8 10 40 - 100 1.8 10 µW/mA V Ω 1280 - 1330 0.5 1280 - 1330 0.5 nm nm/°C 1.0 5 0.5 0.5 - 1.0 5 0.5 0.5 - nm ns ns GHz Conditions CW, Tc = 25°C, Pf = Pf min. unless otherwise stated Ith Pf Pth η Vf Rd λc ∆λ/∆T ∆λ τr τf Bw Note 1 Tc = -40°C to 85°C FWHM (2.35s) 10% to 90%: Ith to Pf = Pf min. 90% to 10%: Pf = Pf min. to Ith Pf = Pf min., ± 3 dB Units Note: 1. Modulated measurement available. If the specific performance you require is not met by the above parameters, please contact Hewlett-Packard as the submodule designs allows customization of performance to meet your needs. 484 Performance Specifications (cont’d.) Parameter MONITOR PHOTODIODE Symbol Photocurrent Responsivity Dark Current Tracking Error Im R Id ∆R Test Conditions Tc = 25°C, Vr = -5 V, (Note 2), CW, Pf = Pf min. unless otherwise stated If = 0 mA Im = Im @ (Pf = Pf min., Tc = 25°C) Tc = -40°C to +85°C LSC3300 Min. Max. LSC3100 Min. Max. 25 0.25 - 800 8.0 20 50 0.05 - 800 0.8 20 µA A/W nA -1.5 +1.5 -2.0 +1.5 dB Units Note: 2. Photodiode will also operate under zero bias conditions. 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 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 Hewlett-Packard can offer a ruggedized fiber pigtail for this product range if extreme mechanical strength is required. The pigtail length can be customized to your specific length, with a connector, to a tolerance of ±25 mm. 485 Ordering Information LSC3X00 - XX Connectors: FP = FC/PC Polish ST = ST® BI = Biconic SA = SMA SC = SC DN = DIN SF = Super Polish FC/PC Power Range: 1 = 1 mW minimum 3 = 100 µW minimum CDRH Certification 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. 486 Laser Warning