IEC 62149-2 pdf download

IEC 62149-2 pdf download Fibre optic active components and devices – Performance standards – Part 2: 850 nm discrete vertical cavity surface emitting laser devices
4.3 Functional specification Functional specifications of all the subcategorized types, A1 , A2 and A3, for modulation speeds are listed in Annex A and Annex B, depending on the device types.
4.4 Diagrams Diagrams of all the VCSEL device types are included in Annex A and Annex B.
5 Testing
5.1 General Initial characterisation and qualification shall be undertaken when a build standard has been completed and frozen. Qualification maintenance is carried using periodic testing programs. Test conditions for all tests unless otherwise stated are 25 °C ± 2 °C.
5.2 Characterization testing Characterisation shall be carried out on at least 20 products taken from at least three different manufacturing lots. The characteristics and conditions of laser diode are tested at the operating temperature and the operating current to satisfy the functional specifications defined in 4.3.
5.3 Performance testing Performance testing is undertaken when characterization testing is complete. The performance test plan and recommended performance test failure criteria are specified in Annex A and Annex B, depending on the device types.
6 Environmental specifications
6.1 General safety All products meeting this standard shall conform to IEC 60950-1 .
6.2 Laser safety Fibre optic transmitter and transceiver using the laser diode specified in this document shall be class 3R laser certified under any condition of operation. This includes single fault conditions whether coupled into a fibre or out of an open bore. Fibre optic transmitter and transceiver using the laser diode specified in this document shall be certified to be in conformance with IEC 60825-1 : Safety of laser products – Part 1: Equipment classification, requirements and user’s guide. Laser safety standards and regulations require that the manufacturer of a laser product provide information about the product’s laser, safety features, labelling, use, maintenance and service. This documentation shall explicitly define requirements and usage restrictions on the host system necessary to meet these safety certifications.
6.3 Electromagnetic compatibility (EMC) requirements Products defined in this specification shall comply with suitable requirements for electromagnetic compatibility (in terms of both emission and immunity), depending on particular usage/environment in which they are intended to be installed or integrated. Guidance to the drafting of such EMC requirements is provided in IEC Guide 1 07. Guidance for electrostatic discharge (ESD) is still under study.