Title :
Coherence characterization of kHz-linewidth laser by fibre speckle analysis
Author :
Inoue, M. ; Ito, Fumihiko ; Fan, Xiaodan ; Koshikiya, Y.
Author_Institution :
NTT Access Network Service Syst. Labs., NTT Corp., Tsukuba, Japan
Abstract :
The modulus of the degree of coherence (DOC) of a kHz-linewidth laser is fully characterized for the first time by using a single test laser. By employing the obtained DOC, the power spectrum is reconstructed, and the phase-error variance for a short delay is analysed, which is important in coherent communication.
Keywords :
fibre lasers; optical fibre communication; optical information processing; signal reconstruction; speckle; coherence characterization; coherence degree; coherent communication; fibre speckle analysis; kHz-linewidth laser; phase-error variance; power spectrum reconstruction; short delay; single test laser; Adaptive optics; Coherence; Delays; Measurement by laser beam; Optical fibers; Optical interferometry;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
