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2. 发明申请

WO2005022710A1 LASER COHERENCE CONTROL USING HOMOGENEOUS LINEWIDTH BROADENING 审中-公开
标题翻译：激光相干控制使用均匀线性广播
公开(公告)号：WO2005022710A1
公开(公告)日：2005-03-10
申请号：PCT/US2004/028141
申请日：2004-08-27
申请人： NEW FOCUS, INC.
发明人： WILLIAMSON, Robert, S., III
IPC分类号： H01S3/10
CPC分类号： G02F1/0121 , H01S3/0057
摘要： An apparatus and method for linewidth broadening applied to a laser that emits a light having an output frequency ν and an emission linewidth δ E . The apparatus is equipped with an electro-optic modulator for intercepting the light and a noise generator for driving the electro-optic modulator with a radiofrequency (RF) noise signal spanning a frequency range selected to broaden the emission linewidth δ E of the light passing through the electro-optic modulator to a broadened linewidth δ B . The noise spectrum of the noise signal exhibits a continuous frequency range and can be flat or sloping. The range extends from low frequency ω L set below the emission linewidth δ E of the light to a high frequency ω H set above the emission linewidth δ E of the light. The electro-optic modulator can be selected from among many suitable devices including optical crystals. Further broadening can be achieved by employing one or more secondary EOMs operating in resonant or non-resonant modes. The lasers that benefit from the invention involve any type of inherently narrow bandwidth lasers operating in CW or pulsed modes.
摘要翻译：应用于发射具有输出频率nu和发射线宽ΔE的光的激光器的线宽变宽的装置和方法。该装置配备有用于遮断光的电光调制器和用于驱动电光调制器的噪声发生器，其具有跨越所选择的频率范围的射频（RF）噪声信号，以扩大通过该光纤的光的发射线宽δE 电光调制器变宽到线宽ΔB。噪声信号的噪声频谱呈现连续的频率范围，可以是平坦的或倾斜的。该范围从低于光的发射线宽δE的低频ωLL延伸到高于光的发射线宽δE的高频ω-H组。电光调制器可以从包括光学晶体的许多合适的装置中选择。通过使用以共振或非共振模式工作的一个或多个次级EOM可以进一步加宽。受益于本发明的激光器涉及以CW或脉冲模式操作的任何类型的固有窄带宽激光器。

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