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LC25WZBJ-J59 Datasheet(PDF) 3 Page - Bookham, Inc. |
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LC25WZBJ-J59 Datasheet(HTML) 3 Page - Bookham, Inc. |
3 / 5 page Data Sheet 3 Outline Drawing Dimensions (mm) Figure 1: Outline Drawing Reliability/Quality Meets Qualification requirements of Telcordia GR-468-CORE for Central Office environment. Operating reliability <500 FITs1 in 15 years. 1- Assumes laser die submount held at <35°C by internal thermoelectric cooler, mean forward current of 35mA, and end of life limits based on 10mA increase in Ith and 25% change in laser efficiency. FIT rate data for other end of life criteria, including minimum extinction ratio requirements, are available upon request. Instructions for Use – LC25WZ Pin 1 and Pin 2 Thermistor The thermistor is used in a control loop in conjunction with the thermo-electric cooler to maintain the laser submount temperature at the required value for wavelength. Operating current should be less than 100µA to prevent self-heating errors. Pin 3 Laser DC bias (-) Laser bias current (negative with respect to package ground) is applied via this pin which forms one side of the bias-T connection to the laser cathode. Pin 4 Monitor anodes, Pin 5 Common Monitor cathode The back facet monitor provides a mean power reference for the laser and is normally operated with a 5V reverse bias. |
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