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公开(公告)号：US20230155342A1
公开(公告)日：2023-05-18
申请号：US17976642
申请日：2022-10-28
申请人： Coherent, Inc.
CPC分类号： H01S3/136 , H01S3/117 , H01S3/1305 , H01S3/2232
摘要： A Q-switched gas laser apparatus with bivariate pulse equalization includes a gas laser, a sensor, and an electronic circuit. A Q-switch that switches the laser resonator between high-loss and low-loss states to generate a pulsed laser beam. The sensor obtains a measurement of the pulsed laser beam indicative of the laser pulse energy. The electronic circuitry operates the Q-switch to (a) repeatedly switch the laser resonator between the high-loss and low-loss states to set a repetition rate of laser pulses of the pulsed laser beam, (b) adjust a loss level of the low-loss state, based on the pulse energy measurement, to achieve a target laser pulse energy, and (c) adjust a duration of the low-loss state to achieve a target laser pulse duration. By adjusting both pulse energy and duration, uniform pulse energy and, if desired, uniform pulse duration are achieved over a wide range of repetition rates.
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公开(公告)号：US20140347154A1
公开(公告)日：2014-11-27
申请号：US13899315
申请日：2013-05-21
申请人： Coherent, Inc.
IPC分类号： H01F27/28
CPC分类号： H01F27/2876 , H01F19/04 , H01F27/2804 , H01F27/2847 , H01F2027/2809
摘要： A radio-frequency (RF) planar transformer includes three spaced-apart, single-turn primary strip-windings connected electrically in parallel with each other. A one-turn secondary strip-winding is located between each adjacent pair of primary strip-windings. The secondary strip-windings are connected in electrical series with each other. The transformer functions as a transformer having a one-turn primary winding and a two-turn secondary winding.
摘要翻译： 射频（RF）平面变压器包括彼此并联电连接的三个间隔开的单匝初级带状绕组。 单相次级绕组绕组位于每对相邻的主绕组绕组之间。 次级绕组彼此电串联连接。 变压器用作具有单匝初级绕组和二匝次级绕组的变压器。
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