| 1. | Mode locking can be induced not only by loss modulation, but also by phase modulation . 锁模不仅可用损耗调制取得,也可用位相调制来得到。 |
| 2. | Harmonic mode locking 谐波锁模 |
| 3. | 4 . at last a theoretically design of the optimizing kerr effect self - mode locking cr ~ : lisaf laser was performed for further research 理论上设计了科尔效应自锁模cr ~ ( 3 + ) : lisaf激光器,计算出最优化腔参数。 |
| 4. | Luo bin ( optics engineering ) directed by yu xuecai , zong derong based on the laser mode locking principle , this paper focuses on the study of dds acousto - optic mode locker 本文根据锁模激光原理,进行了dds (直接数字频率合成器)声光锁模器的研制。 |
| 5. | Because both transactions are converting to exclusive locks , and they are each waiting for the other transaction to release its shared - mode lock , a deadlock occurs 由于两个事务都要转换为排他锁( x锁) ,并且每个事务都等待另一个事务释放共享模式锁,因此发生死锁。 |
| 6. | If two transactions acquire shared - mode locks on a resource and then attempt to update data concurrently , one transaction attempts the lock conversion to an exclusive lock 如果两个事务获得了资源上的共享模式锁,然后试图同时更新数据,则一个事务尝试将锁转换为排他锁( x锁) 。 |
| 7. | The shared - mode - to - exclusive lock conversion must wait because the exclusive lock for one transaction is not compatible with the shared - mode lock of the other transaction ; a lock wait occurs 共享模式到排他锁的转换必须等待一段时间,因为一个事务的排他锁与其他事务的共享模式锁不兼容;发生锁等待。 |
| 8. | It is discoverde that with a looped feedback circuit , the dds acousto - optic mode locking has the function of tracking the frequency interval of the laser resonator longitudinal mode , and stabilizing the quality of the laser beams Dds声光锁模器在增加闭环反馈环路后,可以跟踪激光谐振腔纵模频率间隔变化,稳定激光光束输出质量。 |
| 9. | There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers . few - femtosecond pulses have already been generated from ti : sapphire lasers , by means of combining self - phase modulation with negative group velocity dispersion , which is similar to the way of soliton generation 钛宝石激光自锁模的发现使得超短脉冲技术发生了革命性的变化,利用自相位调制和负群速度色散结合的类孤子产生方式,人们已经在钛宝石锁模激光器上得到了脉宽只有几个飞秒的光脉冲。 |
| 10. | This paper mainly discusses the designing and testing method to the dds acousto - optic mode locking . it also makes some further analysis on the critical technology - - - - - - the transducer acoustical membrane matching and transducer thinning , which can directly affect the performance of acousto - optic elements . it then analyses the heat effect of acousto - optic elements and the technology of transducer thinning by developing ion - beam sputtering of high frequency acousto - optic elements 本文重点讨论了dds声光锁模器的设计及测试方法,讨论和分析了影响声光器件性能的关键工艺换能器声学膜层匹配和换能器减薄工艺,对声光器件的热效应进行了测试分析,对离子刻蚀法声光换能器减薄新工艺作了一定的探讨。 |