Metadata
Author: LASER-wikipedia2
Data
English[en]
Multimode helium–neon lasers have a typical coherence length of 20 cm, while the coherence length of single-mode lasers can exceed 100 m.
Chinese[zh]
多模(multimode)氦氖激光(英语:helium–neon laser)的相干长度一般为20厘米,而单模(singlemode)的相干长度可超过100米。