A Novel Wide Band Optical Isolator

摘要

In this paper, we present the design and fabrication of a novel compact broad-band isolator with high isolation performance. With properly adding waveplates into the scheme, the fabricated device is demonstrated to achieve an isolation value of more than 40dB covering a broad-band wavelength range of 300nm in simulation. Its temperature insensitive and super low PMD character also has been demonstrated. Theoretical analysis and experimental results show each set of parameters concerning the isolator with high performance, which indicates the proposed technique is promising in the application of optical networks.