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	Wide temperature range uncooled transcever module for uncontrolled environments
	GIBSON, PETER; STIMSON, MICHAEL
	2007-08-23
著作权人	OPLINK COMMUNICATIONS, LLC
专利号	US20070195838A1
国家	美国
文献子类	发明申请
其他题名	Wide temperature range uncooled transcever module for uncontrolled environments
英文摘要	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.
公开日期	2007-08-23
申请日期	2007-02-21
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/53910]
专题	半导体激光器专利数据库
作者单位	OPLINK COMMUNICATIONS, LLC
推荐引用方式 GB/T 7714	GIBSON, PETER,STIMSON, MICHAEL. Wide temperature range uncooled transcever module for uncontrolled environments. US20070195838A1. 2007-08-23.

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