公开(公告)号：US07570679B2

公开(公告)日：2009-08-04

申请号：US11677548

申请日：2007-02-21

申请人： Peter Gibson ,  Michael Stimson

发明人： Peter Gibson ,  Michael Stimson

IPC分类号： H01S3/04

CPC分类号： H01S5/06837 ,  H01S5/02212 ,  H01S5/02453

摘要： A laser transmitter within an optical transceiver includes a heating element. The heating element is coup led to the laser package and is controlled to allow the laser to be heated to a higher temperature than the ambient temperature when low environmental temperature extremes occur. The transmitter includes a semiconductor laser having an optimal operational temperature range, a laser driver circuit coupled to the laser that provides a modulation current and a bias current to drive the laser, a heating element thermally coupled to the laser and a heating control circuit that monitors the bias current applied to the laser for drops in bias current that are indicative of drops in the surrounding ambient temperature. In response to a drop in bias current, the control circuitry energizes the heating element to provide heat to the laser.

摘要翻译： 光收发器内的激光发射器包括加热元件。 加热元件被引导到激光器封装并且被控制以允许激光器在低环境温度极端发生时被加热到比环境温度更高的温度。 发射机包括具有最佳操作温度范围的半导体激光器，耦合到激光器的激光驱动器电路，其提供调制电流和偏置电流来驱动激光器，热耦合到激光器的加热元件和监视器 施加到激光器的偏置电流用于指示周围环境温度下降的偏置电流中的下降。 响应于偏置电流的下降，控制电路激励加热元件以向激光器提供热量。

公开(公告)号：US20070195838A1

公开(公告)日：2007-08-23

申请号：US11677548

申请日：2007-02-21

申请人： Peter Gibson ,  Michael Stimson

发明人： Peter Gibson ,  Michael Stimson

IPC分类号： H01S3/04 ,  H01S3/00

CPC分类号： H01S5/06837 ,  H01S5/02212 ,  H01S5/02453

摘要： A laser transmitter within an optical transceiver includes a heating element. The heating element is coup led to the laser package and is controlled to allow the laser to be heated to a higher temperature than the ambient temperature when low environmental temperature extremes occur. The transmitter includes a semiconductor laser having an optimal operational temperature range, a laser driver circuit coupled to the laser that provides a modulation current and a bias current to drive the laser, a heating element thermally coupled to the laser and a heating control circuit that monitors the bias current applied to the laser for drops in bias current that are indicative of drops in the surrounding ambient temperature. In response to a drop in bias current, the control circuitry energizes the heating element to provide heat to the laser.

摘要翻译： 光收发器内的激光发射器包括加热元件。 加热元件被引导到激光器封装并且被控制以允许激光器在低环境温度极端发生时被加热到比环境温度更高的温度。 发射机包括具有最佳操作温度范围的半导体激光器，耦合到激光器的激光驱动器电路，其提供调制电流和偏置电流来驱动激光器，热耦合到激光器的加热元件和监视器 施加到激光器的偏置电流用于指示周围环境温度下降的偏置电流中的下降。 响应于偏置电流的下降，控制电路激励加热元件以向激光器提供热量。