首页>
外国专利>
OPTICAL SYNCHRONIZATION SYSTEM FOR FEMTOSECOND X-RAY SOURCES
OPTICAL SYNCHRONIZATION SYSTEM FOR FEMTOSECOND X-RAY SOURCES
展开▼
机译:飞秒级X射线源光学同步系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
Femtosecond pump/probe experiments using short X-Ray and optical pulses require precise synchronization between 100 meter-10 km separated lasers in a various experiments. For stabilization in the hundred femtosecond range a CW laser is amplitude modulated at 1-10 GHz, the signal retroreflected from the far end, and the relative phase used to correct the transit time with various implementations. For the sub-10 fsec range the laser frequency itself is upshifted 55 MHz with an acousto-optical modulator, retroreflected, upshifted again and phase compared at the sending end to a 110 MHz reference. Initial experiments indicate less than 1 fsec timing jitter. To lock lasers in the sub-10 fs range two single-frequency lasers separated by several teraHertz will be lock to a master modelocked fiber laser, transmit the two frequencies over fiber, and lock two comb lines of a slave laser to these frequencies, thus synchronizing the two modelocked laser envelopes.
展开▼