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| Data Sheet 4 - 155 Mb/s Single-Mode OSC Laser, 1510 nm LC151B Specifically designed for use as a low speed out of band optical service channel for optical amplifiers. The laser is available in a low-inductance 14-pin butterfly package with single-mode connectorized fiber-optic pigtail with a rated peak output power of 2 mW. At 1510 nm, the LC151B-20 does not interfere with WDM traffic and operates outside the normal EDFA gain region. The high reliability buried hetero-structure DFB laser chip ensures the reliability of the LC151B-20 over the entire range of recommended operating conditions. Features: * Wavelength 1510 nm * Designed to operate at 4 Mb/s - 155 Mb/s * Low threshold, high reliability BHet laser chip * Hermetically sealed 14 pin high speed butterfly package * High output power 2 mW minimum CW * Internal InGaAs monitor photodiode * Available with several optical connector options * RoHS compliant Applications: * Optical Service Channel (OSC) applications in DWDM transmission systems using optical amplifiers. 1 Data Sheet Absolute Maximum Ratings Parameter Operating temperature Storage temperature Laser forward current above Ith Laser reverse voltage Monitor diode bias Fibre bend radius Tcase = 25C unless otherwise stated. Conditions Min -40 -40 Max +70 +75 100 2 -10 Unit C C mA V V mm 30 Parameters Parameter Submount temperature Threshold current (Ith) Rated mean output power Forward voltage Modulation current Mean wavelength Monitor current Monitor dark current Heatpump current Heatpump voltage Bandwidth Sidemode suppression ratio Spectral width Kink Slope SAT Conditions: Monitor bias -5V. Condition Min 25 Typ Max 35 30 Unit C mA mW SOL 50% duty 2 mW peak 2 mW peak 10 Mb/s 1 mW output 5 1.0 2 22 1503 65 5 67 1518 695 50 800 1.3 200 2 V mA nm A nA mA V MHz 70C case/25C submount 70C case/25C submount Rated ouput power @ -20 dB To 120% peak To 120% peak -20 -35 -35 0.4 20 35 dB nm % % Connections Pin # 1 2 3 4 5 6 7 Function Thermistor Thermistor LD cathode Monitor anode Monitor cathode TEC (+) TEC (-) Pin # 14 13 12 11 10 9 8 Function No connection Ground LD anode Ground No connection Ground Ground 2 Data Sheet Package Outline Drawing and Dimensions Tolerances 0.25 mm Finish: Gold plate Figure 3: Dimensions diagram. Instructions for Use 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. Operating current should be less than 100 A to prevent selfheating errors. Pin 3 Laser modulation (-) and bias The data input (modulation) and bias are both applied via this pin which has a nominal 25 Ohm load impedance. Pin 4 Monitor anode, Pin 5 Monitor cathode The back facet monitor diode provides a mean power reference for the laser and is normally operated with a 5 V reverse bias. Pin 6 TEC (+), Pin 7 TEC (-) Applying a positive voltage on pin 6 with respect to pin 7 will cause the internal submount to be cooled relative to the case temperature. Reversing the polarity will raise the submount temperature relative to the case. Care should be taken to avoid overheating the submount when driving the TEC in this manner. The TEC supply should be capable of delivering up to 1.2 A at 2.5 V. Pin 8, 9, 11, 13 Case ground. These pins must be grounded in all applications. Pin 10, 14 N/C These pins are not connected. They should be grounded if possible. Pin 12 Laser (+) This pin provides the return path for the laser modulation and bias circuits. 3 Data Sheet RoHS Compliance Bookham is fully committed to environment protection and sustainable development and has set in place a comprehensive program for removing polluting and hazardous substances from all of its products. The relevant evidence of RoHS compliance is held as part of our controlled documentation for each of our compliant products. RoHS compliance parts are available to order, please refer to the ordering information section for further details. Ordering Information: Please quote the Product Code from below when ordering as this is the identification that appears on the part when shipped. Product Code LC151B-20J28 Length 116 cm 30 mm Fibertail Diameter 0.9 mm Fibre types standard Product Name 4/155 Mb/s Single-Mode OSC Laser, 1510 nm with SC/PC connector 4/155 Mb/s Single-Mode OSC Laser, 1510 nm with FC/PC connector 4/155 Mb/s Single-Mode OSC Laser, 1510 nm with LC/PC connector 4/155 Mb/s Single-Mode OSC Laser, 1510 nm with MU/PC connector LC151B-20J34 116 cm 30 mm 0.9 mm standard LC151B-20J57 116 cm 30 mm 0.9 mm standard LC151B-20J59 116 cm 30 mm 0.9 mm standard Contact Information North America Bookham Worldwide Headquarters 2584 Junction Ave. San Jose CA 95134 USA * Tel: +1 408 919 1500 * Fax: +1 408 919 6083 Europe Paignton Office Brixham Road Paignton Devon TQ4 7BE United Kingdom * Tel: +44 (0) 1803 66 2000 * Fax: +44 (0) 1803 66 2801 Asia Shenzhen Office 2 Phoenix Road Futian Free Trade Zone Shenzhen 518038 China * Tel: +86 755 33305888 * Fax: +86 755 33305805 +86 755 33305807 Important Notice Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by Bookham before they become applicable to any particular order or contract. In accordance with the Bookham policy of continuous improvement specifications may change without notice. The publication of information in this data sheet does not imply freedom from patent or other protective rights of Bookham or others. Further details are available from any Bookham sales representative. www.bookham.com sales@bookham.com DANGER INVISIBLE LASER RADIATION DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS CLASS 1M LASER REFERENCE IEC 60825-1: Edition 1.2 INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM OUTPUT POWER 21mW WAVELENGTH >1500nm CLASS IIIb LASER PRODUCT 4 THIS PRODUCT COMPLIES WITH 21 CFR 1040.10 ISO14001:1996 EMS 504193 TL9000 Rev 3.0 (ISO9001:2000) FM15040 Caution - use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. BH13090 Rev 1.0 January 2007 (c)Bookham 2006. Bookham is a registered trademark of Bookham Inc. |
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