F. Ito, M. Inoue, X. Fan, and Y. Koshikiya, "Reflectometric degree of coherence analysis of narrow linewidth laser at continuous delay,"
in National Fiber Optic Engineers Conference,
OSA Technical Digest
(Optical Society of America, 2012), paper JW2A.22.
A novel fiber-reflectometric technique using Rayleigh speckle statistical analysis enables us to measure the degree of coherence (DOC) at a continuous delay time. The DOC of a tens of kHz linewidth laser is analyzed.