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1. 发明申请

US20080291957A1 WAVELENGTH TUNABLE LASER APPARATUS AND WAVELENGTH CONTROL METHOD 有权
标题翻译：波长可控激光装置和波长控制方法
公开(公告)号：US20080291957A1
公开(公告)日：2008-11-27
申请号：US11833271
申请日：2007-08-03
申请人： Hideo ARIMOTO , Kzuhiro ITO , Hiroyasu SASAKI
发明人： Hideo ARIMOTO , Kzuhiro ITO , Hiroyasu SASAKI
IPC分类号： H01S3/106
CPC分类号： H01S5/146 , H01S5/06255
摘要： Included are: a gain chip having a gain unit and a phase control region; a current supply for causing a positive current to flow to the phase control region; a voltage supply for applying a bias voltage to the phase control region; and a control unit for selectively driving the current supply or the voltage supply depending on a direction of the wavelength shift. The control unit drives the current supply when a laser wavelength is to be shifted to a shorter wavelength side from a wavelength with the current supply and the voltage supply being turned off, and drives the voltage supply when the laser wavelength is to be shifted to a longer wavelength side from a wavelength with the current supply and the voltage supply being turned off.
摘要翻译：包括：具有增益单元和相位控制区域的增益芯片; 用于使正电流流向相位控制区域的电流源; 用于向相位控制区域施加偏置电压的电压源; 以及控制单元，用于根据波长偏移的方向选择性地驱动电流源或电压源。当激光波长从电流供应和电压供应关闭的波长移动到较短波长侧时，控制单元驱动电流源，并且当激光波长被转移到来自具有电流供应和电压供应的波长的较长波长侧被关闭。

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