Title :
Modulation accuracy of terahertz transmitter employing optical frequency comb
Author :
Kuwano, Shigeru ; Iida, Daisuke ; Terada, Jun ; Yoshimoto, Naoto ; Hisatake, Shintaro ; Nagatsuma, Tadao
Author_Institution :
NTT Access Network Service Syst. Labs., NTT Corp., Yokosuka, Japan
Abstract :
Terahertz (THz) transmitter employing optical frequency comb can provide high quality THz carrier, and is useful to the future broadband THz communication systems based on coherent transmission technique. To achieve coherent transmission, it is important to evaluate the signal quality of a THz transmitter, and we derive error vector magnitude (EVM) including optical impairments of the optical frequency comb. The calculated EVM is in good agreement with simulated one, and practical requirements for EVM are indicated.
Keywords :
light coherence; optical modulation; optical transmitters; terahertz wave devices; broadband THz communication systems; coherent transmission technique; error vector magnitude; modulation accuracy; optical frequency comb; optical impairments; signal quality; terahertz transmitter; Adaptive optics; Crosstalk; Optical amplifiers; Optical crosstalk; Optical filters; Optical noise; Optical transmitters; error vector magnitude; optical frequency comb; terahertz transmission;
Conference_Titel :
Microwave Photonics (MWP), 2013 International Topical Meeting on
Conference_Location :
Alexandria, VA
DOI :
10.1109/MWP.2013.6724044
