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LST2425A-T-AP

LST2425A-T-AP

  • 厂商:

    HP

  • 封装:

  • 描述:

    LST2425A-T-AP - Coaxial Pigtailed Laser Module - Agilent(Hewlett-Packard)

  • 数据手册
  • 价格&库存
LST2425A-T-AP 数据手册
Coaxial Pigtailed Laser Module Preliminary Technical Data LST2425X, LST3421X Features • Compact Coaxial Package • Strained Multi Quantum Well Distributed Feedback (DFB) Laser Chip • Low Thresholds Current and Operating Currents • Wide Operating Temperature -40°C to +85°C • Excellent Wavelength Stability with Temperature ~0.1 nm/ °C • Narrow Line Width -30 dB • Modulation Capability up to 622 Mb/s • Convenient Variety of Pinout and Mounting Flange Options • SONET/SDH • Datacommunications • Switches Description Products in the LST242X family are compact coaxial pigtailed DFB laser transmitters, operating in the 1300 nm wavelength region and coupling light to single mode fiber. They are designed for use in short, medium and long distance networks with bit rates up to 622 Mb/s. The device features a high reliability SMQW-DFB laser diode and rear facet monitor photodiode. These are electrically connected to four pins in an industry-standard configuration. Environmental performance is designed to be compatible with the requirements of Bellcore’s TA-NWT-000983 document. Options within the LST242X family offer pinouts and pin rotational orientations designed to match existing products available on the market. We also offer a comprehensive range of alternative mounting flanges including a dual in line option. If the specific arrangement or performance you require is not listed, please contact your local representative as our highly flexible design and manufacturing processes allow both physical and electro-optical customization to meet your needs. Applications • Telecommunications • Fiber in the Loop • Inter/Intra Office Preliminary Product Disclaimer This preliminary data sheet is provided to assist you in the evaluation of engineering samples of the product which is under development and targeted for release during 1997. Until Hewlett-Packard releases this product for general sales, HP reserves the right to alter prices, specifications, features, capabilities, function, manufacturing release dates, and even general availability of the product at any time. 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. 514 (5/97) Absolute Maximum Ratings Absolute limiting (maximum) ratings mean that no catastrophic damage will occur if the product is subjected to these ratings for short periods, provided that 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 Voltage Photodiode Reverse Voltage Photodiode Forward Current Operating Temperature A B Storage Temperature Relative Humidity Fiber Pull Strength Mechanical Shock Vibration Symbol If Vlr Vr Ipf Tc Ts RH Test Condition DC DC DC DC Temperature measured at case Three times; 10 sec. MIL-STD-883D, Method 2002, Condition A MIL-STD-883D, Method 2007, Condition A Limits Min. Max. 120 2 20 1 –40 +85 0 +70 –40 +85 noncondensing 10 500 20 Units mA V V mA °C °C °C %RH N G G Performance Specifications LST242X LST3421 Min. Max. Parameter LASER Symbol Rated Optical Power Threshold Current Threshold Current Coupled Power in “Off” State Drive Current above Ith, for Im = Im (Po, +25°C) Forward Voltage Center Wavelength Wavelength/Temperature Coefficient Spectral Width Side Mode Suppression Ratio Rise and Fall Time MONITOR PHOTODIODE Photocurrent Dark Current Capacitance Tracking Error Po Ith Ith Pth Id Vf λ ∆λ/∆ T σ SMSR τ Test Condition CW, over operating temperature range, Po, as noted below unless otherwise stated and –20 dB ORL Tc = ranges specified above, CW Tc = +25°C Over operating temperature range If = Ith – 2 mA Tc = +25°C Over operating temperature range Over operating temperature range Units 2 4 2 0 12.5 1280 15 40 10 25 40 1.6 1335 0.1 1 mW mA mA µW mA mA V nm nm/°C nm dB ns At –20 dB +30 10-90%, Ith to Po Tc = +25°C, Vr = 5 V, Po = Rated Power 50 Po = 0 µW 1 MHz Im = Im (Po, +25°C) Tc + –40°C to + 85°C 0.5 Im Id C ∆R –1 1000 20 10 1 µA nA pF dB 515 Fiber Pigtail Parameter Fiber Pigtail Length Spot Size (Mode Radius) Cladding Diameter Core/Cladding Concentricity Secondary Jacket Diameter Effective Cutoff Wavelength Minimum 1000 4.5 122 0.8 1150 Maximum 5.5 128 1 1 1240 Units mm µm µm µm mm nm Reliability Target Parameter Median Life Condition 50% inc. in total drive current, Tc = +25°C Min. 2x105 Max. Units hours 516 Example of LST242X – All dimensions in mm. A I K H G B C O F M N L Q D P – PIN DIAMETER J R E DIM. A B C D E F MIN. TYP. 7.4 17.0 MAX. DIM. G H I J K L MIN. 12.0 TYP. MAX. 20.0 DIM. M N O P Q R MIN. TYP. 0.9 5.3 2.0 MAX. 11.8 3.7 2.4 12.5 12.2 2.6 12.9 5.3 2.0 2.1 1000 2.3 0.4 0.5 1.25 0.5 OTHER FLANGE OPTIONS ARE AVAILABLE. CASE 4 1 PIN 1 2 3 4 LST2425 FUNCTION MONITOR ANODE (-VE) MONITOR CATHODE (+VE) LASER CATHODE (-VE) LASER ANODE (+VE) LASER 3 2 517 LST3421 Specification – All dimensions in mm. D 4 3 A B C 2 1 5 6 C/L 7 8 J K PIN 1 INDICATOR F E G H I CASE 4 PHOTODIODE PIN 5 LASER FUNCTION NO CONNECTION MONITOR ANODE (-VE) MONITOR CATHODE (+VE) NO CONNECTION NO CONNECTION LASER CATHODE (-VE) LASER ANODE (+VE) (CONNECTED TO HEADER) NO CONNECTION 1 2 3 4 5 6 7 8 3 2 1 6 7 8 OPTION 1 DIM. A B C D TYP. 12.60 7.62 2.54 30.00 DIM. E F G H TYP. 10.20 12.60 4.26 3.53 DIM. I J K TYP. 2.54 8.60 3.20 NOTE: PINS 1, 4, 5 AND 8 ARE ISOLATED FROM THE INTERNAL CIRCUITRY, BUT ARE ELECTRICALLY CONNECTED TO EACH OTHER. PINS 1, 4, 5, & 8 – 0.51 x 0.38 NOM. PINS 2, 3, 6, & 7 – 0.4/0.5 DIA. 518 Ordering Information Coaxial Package LST2425X -Y ZZ Connector Type: AP = Angle polished FC/PC Other connections available. Contact HP for details. Flange: B = Without mounting flange T = Universal flange Temperature Range: A = –40°C to +85°C B = 0°C to +70°C Dual-in-Line Package LST3421X - ZZ Connector Type: AP = Angle polished FC/PC Other connections available. Contact HP for details. Temperature Range: A = –40°C to +85°C B = 0°C to +70°C 519
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