3935 DFB O-Band CWDM Laser in TO-can DATASHEET | APRIL 2012 FIBER OPTICS EMCORE’s Model 3935 DFB laser in TO-can offers a low cost solution for linear fiberoptic links. These components can be cooled with external thermo-electric coolers for high stability, or run without TEC’s to reduce power consumption. The DFB laser in TO-can builds upon Ortel’s long history of high performance, leading edge designs in CATV, CWDM, wireless, and high speed digital applications. The laser diode chip is mounted on a compact hermetic TO-can assembly together with monitor photodiode and isolator, for flexible integration into the pigtail package configuration. Performance Highlights Applications Video Signal Distribtuion in HFC and FTTx Nodes Parameters Min Typical -40 - 85 C 5 - 4000 MHz Slope Efficiency 0.35 - - mW/mA Center Wavelength 1271 - 1371 nm 30 - - dB Operating Case Temperature Range O-Band CWDM Signal Distribution in L-Band and Wireless Remoting Links High Linearity, Low Power Fiber Links Frequency Range Side Mode Suppression Ratio, CW Features Max Linear DFB Laser Design Bandwidth > 4000 MHz RoHS Compliance Optical Isolator Monitor Photodiode Asperic Lens High Slope Efficiency | REV 2012.04 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. Units 3935 DFB O-Band CWDM Laser in TO-can FIBER OPTICS DATASHEET | APRIL 2012 Absolute Maximum Ratings1 Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability. Parameters Symbol Condition/Notes Min Max Storage Temperature TSTG Non-Operating -40 85 o Operating Case Temperature TOP Continuous -40 85 o Laser Diode Forward Current IOP CW - 150 mA Laser Diode Reverse Voltage VR Continuous - 1.0 V Photodiode Forward Current IMPD Continuous - 2 mA Photodiode Reverse Voltage VMPD,R Continuous - 10 V PIN 60 Seconds - 62 dBmV - - - 260/10 RH Continuous - 85 % - Human Body Model -500 +500 V Average RF Input Power Lead Soldering Temperature/Time Relative Humidity ESD Unit C C o C/sec 1. Absolute maximum data are limited to system design only; proper device performance is not guaranteed over rating listed above. Operation beyond these maximum conditions may degrade device performance, lead to device failure, shorter lifetime, and will invalidate the device warranty. Electrical/Optical Characteristics Parameters Symbol Conditions/Notes Min Typ Max Unit Series Resistance RS Between IF = 20 and 80 mA 2 - 8 Ohm Forward Voltage VF At laser threshold - - 1.8 V Threshold Current ITh - - 8 15 mA Slope Efficiency SE - 0.35 - - W/A Monitor Current IMon If = 40 mA, VMPD = 5 Vdc 200 - 2000 µA IMon,dark VMPD = 5 Vdc - - 50 nA Linearity L Between 30 and 80 mA Center Emission Wavelength C Iop, Top = 25ºC - - - ±2 nm 3,4 Spectral Width - - - 1.0 nm 3,4 SMSR - 30 40 - dB 3,4 Monitor Dark Current Side Mode Suppression Ratio 1 Note 1 2 1. Slope efficiency is measured in a current range between Ith + 5 mA and Ith + 65 mA. 2. Linearity is calculated by first determining slopes of five sequential pairs of points along the linear portion of the POC vs. IF curve () in the drive current range (30mA and 80 mA). The difference between the maximum and minimum of these slopes divided by the slope efficiency (defined as the slope of linear regression) defines Linearity. L Max1 , 2 ,....., 5 Min1 , 2 ,....., 5 3. Spectrum is measured using an optical spectrum analyzer with a spectral resolution better than 0.1 nm. 4. Lot sample test at 20%. | REV 2012.04 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. 3935 DFB O-Band CWDM Laser in TO-can FIBER OPTICS DATASHEET | APRIL 2012 Package Outline Drawing 8.6mm Focal Length Option 10.1mm Focal Length Option 1. All the isolated pins (2, 3, and 4) shall be completed isolated from the case, no shortage between the ground pin (pin 1)and all other three pins. 2. Dimensional tolerances a.Chip location in relative to the TO header center shall be within +/-30um in both X & Y direction, and +/-30 um in z-direction (axial). b. Cap concentricity in relative to the TO header shall be within 50 um in radius. c. Lead length: 14mm +/-0.5mm All parts will have ink marking on the side of the base of the TO-56 with the following description. Ink Marking Part Description A37 TO-can, CATV O-Band CWDM DFB, 8.6mm, Pinout A A39 TO-can, CATV O-Band CWDM DFB, 8.6mm, Pinout C A44 TO-can, CATV O-Band CWDM DFB, 10.1mm, Pinout A A45 TO-can, CATV O-Band CWDM DFB, 10.1mm, Pinout C | REV 2012.04 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. 3935 DFB O-Band CWDM Laser in TO-can FIBER OPTICS DATASHEET | APRIL 2012 Pinout Configurations Schematic and Pinout A 3 PD 4 2 LD 1 Pin Definitions for Pinout A Pin Description 1 LD Anode, Case Ground 2 LD Cathode 3 PD Cathode 4 PD Anode Pinout A Bottom View Schematic and Pinout C Pin Definitions for Pinout C Pin Description 1 Case 2 LD Cathode 3 PD Anode 4 LD Anode, PD Cathode Bottom View | REV 2012.04 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. 3935 DFB O-Band CWDM Laser in TO-can FIBER OPTICS DATASHEET | APRIL 2012 Laser Safety This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH Class 1 laser product. This device has been classified with the FDA/CDRH under accession number 0220191. All Versions of this laser are Class 1 laser product, tested according to IEC 60825-1:2007/EN 60825-1:2007 Wavelength = 1.3 m. Maximum power = 50 mW. Because of size constraints, laser safety labeling (including an FDA class 1 label) is not affixed to the module, but attached to the outside of the shipping carton. Product is not shipped with power supply. Caution: Use of controls, adjustments and procedures other than those specified herein may result in hazardous laser radiation exposure. DANGER DANGER INVISIBLE LASER RADIATION IS EMITTED FROM THE END OF FIBER OR CONNECTOR INVISIBLE LASER RADIATION AVOID DIRECT EXPOSURE TO BEAM Wavelength: 1.3 m Max. Output: 50 mW, Avoid direct exposure to beam Do not view beam directly with optical instruments Class 1 Laser Product INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR Avoid exposure to beam Class 1 Laser Product IEC-60825-1:20007 Max. Output:50 mw Wavelength: 1.3 m | REV 2012.04 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice. 3935 DFB O-Band CWDM Laser in TO-can FIBER OPTICS DATASHEET | APRIL 2012 Ordering Code Definitions 3935 – xxxx – y – zz Family Name 3935: O-Band CWDM DFB Laser in TO-can Center Wavelength Options xxxx = 1271: 1271 nm xxxx = 1291: 1291 nm xxxx = 1311: 1311 nm xxxx = 1331: 1331 nm xxxx = 1351: 1351 nm xxxx = 1371: 1371 nm Pinout Options y = A: Pinout A y= C: Pinout C Focal Length Options zz= 08: 8.6mm Focal Length zz= 10: 10.1mm Focal Length Example 3935-1311-A-08: 1311nm Laser in TO-can, Pinout A, 8.6mm Focal Length. 3935-1311-A-10: 1311nm Laser in TO-can, Pinout A. 10.1mm Focal Length.. | REV 2012.04 Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.