会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Laser driver circuit for externally modulated lasers
    • 用于外部调制激光器的激光驱动电路
    • US07194012B2
    • 2007-03-20
    • US10995684
    • 2004-11-23
    • T. G. Beck MasonDev E. KumarGiorgio Giaretta
    • T. G. Beck MasonDev E. KumarGiorgio Giaretta
    • H01S3/00
    • H01S5/042H01S5/0427
    • Systems and methods for biasing an externally modulated laser. An inductorless bias T network is provided that includes a terminating resistor in series with a capacitor. The capacitor is an open circuit for a bias signal and a virtual ground for an RF signal. Thus, the RF signal is terminated by the terminating resistor without dissipating the bias signal through a ground return path of the RF signal. Using a charge pump inverter, a positive supply can be used to positively bias a laser and negatively bias the external modulator through the terminating resistor. A negative power supply is not required. A swing voltage provided by the RF signal causes the external modulator to modulate the light emitted by the laser.
    • 用于偏置外部调制激光器的系统和方法。 提供无电感偏置T网络,其包括与电容器串联的终端电阻器。 电容器是用于偏置信号的开路和用于RF信号的虚拟接地。 因此,RF信号由终端电阻终止,而不通过RF信号的接地返回路径消散偏置信号。 使用电荷泵逆变器,可以使用正电源来对激光器进行正偏置,并通过端接电阻对外部调制器进行负偏置。 不需要负电源。 由RF信号提供的摆幅电压使外部调制器调制由激光发射的光。