公开(公告)号：US20130230314A1

公开(公告)日：2013-09-05

申请号：US13584952

申请日：2012-08-14

Applicant: Wei-Hung TSAI

Inventor： Wei-Hung TSAI

IPC: H04B10/08

CPC classification number: H04B10/07 ,  H04B10/40 ,  H04B10/564

Abstract: The present invention is to provide a method applicable to a fiber-optic transceiver including a transmitter optical subassembly (TOSA) provided therein with a laser diode, but without a monitoring photodiode, a laser driver controlled by a controller IC for driving the laser diode to generate a laser beam, and a thermal sensor for sensing temperature of the laser diode. The method includes executing an approximation process to characteristic data, i.e. threshold currents of the laser diode at a plurality of specific temperatures and corresponding slope efficiencies (SE), provided by manufacturer for obtaining relationship therebetween over entire temperature range, manually adjusting operation parameters (such as bias current and modulation current) of the laser diode for generating expected optical power and extinction ratio at a normal temperature and for subsequently determining the operation parameters over the entire temperature range, and writing the relationship and operation parameters thus obtained into the controller IC.

Abstract translation: 本发明提供一种可应用于光纤收发器的方法，该光纤收发器包括：发射器光学子组件（TOSA），其中设置有激光二极管，但没有监控光电二极管;由控制器IC控制的激光驱动器，用于驱动激光二极管 产生激光束，以及用于感测激光二极管的温度的热传感器。 该方法包括执行特征数据的近似处理，即制造商提供的在多个特定温度下的激光二极管的阈值电流和对应的斜率效率（SE），以在整个温度范围内获得关系，手动调整操作参数 作为偏置电流和调制电流），用于在正常温度下产生预期的光功率和消光比，并且随后在整个温度范围内确定操作参数，并将所获得的关系和操作参数写入控制器IC。