Title :
Polarization-independent optical circulator having high isolation over a wide wavelength range
Author_Institution :
NTT Transmission Syst. Labs., Kanagawa, Japan
Abstract :
The letter proposes a new structure of a polarization-independent optical circulator. It is theoretically and experimentally shown that the proposed circulator has high isolation over a wide wavelength range. Insertion loss and isolation of a fabricated four-part circulator have been measured to be or=42.3 dB, respectively. Loss ratio over 40.4 dB has been realized.<>
Keywords :
light polarisation; optical communication equipment; optical elements; optical losses; optical rotation; 1.9 dB; four-part circulator; high isolation; insertion loss; loss ratio; polarising beam splitter; polarization-independent optical circulator; wide wavelength range; Azimuth; Birefringence; Insertion loss; Loss measurement; Optical fiber communication; Optical fiber polarization; Optical losses; Optical polarization; Optical propagation; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
