A Proposal of Zero Leakage-Loss Passive Optical Combiner Based on Nonreciprocal Waveguide

• Published in: IEEE photonics technology letters Vol. 21; no. 20; pp. 1493 - 1495
• Main Authors: Ruiyi Chen, Ruiyi Chen, Haifeng Zhou, Haifeng Zhou, Guoming Jiang, Guoming Jiang, Yiling Sun, Yiling Sun, Yinlei Hao, Yinlei Hao, Jianyi Yang, Jianyi Yang, Minghua Wang, Minghua Wang, Xiaoqing Jiang, Xiaoqing Jiang
• Format: Journal Article
• Language: English
• Published: New York IEEE 15-10-2009; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Beams (radiation); Circulation; Devices; Dispersion; Dispersions; Feasibility; Gratings; Isolators; Magnetic analysis; Magnetooptic devices; Magnetooptics; nonreciprocal phase shift; optical combiners; optical isolators; Optical losses; Optical propagation; Optical waveguides; Performance analysis; Proposals; Waveguides
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2009.2028579

In this letter, a zero-leakage-loss passive optical combiner based on nonreciprocal waveguides is proposed to remove the inherent 3-dB leakage loss in the conventional ones, which consists of a nonreciprocal waveguide grating-type isolator and circulator. The device concept is given, and the dispersion relation analysis and 3-D magnetooptical beam propagation method are employed to validate the feasibility and the device performance.