14 December 1989 Nonreciprocal Devices For Integrated Optics
Author Affiliations +
Proceedings Volume 1126, Electro-Optic and Magneto-Optic Materials and Applications; (1989) https://doi.org/10.1117/12.961381
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France
Abstract
Recent development of waveguide nonreciprocal devices, i.e. , isolator and circulator, is reviewed. Two major difficulties exist for their fabrication. First, form birefringence must be overcome to obtain high TE-TM mode conversion efficiency. Secondly, both of input and output light must be either TE or TM mode. A variety of methods and device structures have been proposed to solve these difficulties. However, experimental demonstration of waveguide isolator has been limited. After a brief discussion on advantages and drawbacks of proposed methods and device structures, a new fabrication process of waveguide isolator is described. A device structure which ensures TE mode operation was achieved by making adjoining nonreciprocal and reciprocal mode converters by using laser annealing technique. Faraday and Cotton-Mouton effects of Bi-substituted iron garnet film were used for nonreciprocal and reciprocal mode converters, respectively. Growth-induced and stress-induced birefringences of the film were used to cancel the form birefringence. An isolation ratio of 12.5dB was achieved at wavelength of 1.15μm with external magnetic field of 100 Gauss.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Koji Ando, Koji Ando, } "Nonreciprocal Devices For Integrated Optics", Proc. SPIE 1126, Electro-Optic and Magneto-Optic Materials and Applications, (14 December 1989); doi: 10.1117/12.961381; https://doi.org/10.1117/12.961381
PROCEEDINGS
8 PAGES


SHARE
RELATED CONTENT

Low cross-talk polarization splitter on glass
Proceedings of SPIE (March 05 2013)
Design of a waveguide with optics axes tilted by 45°...
Proceedings of SPIE (February 29 2016)
Recent Developments In Magneto-Optic Waveguides
Proceedings of SPIE (January 04 1990)
Integrated optical cross strip interferometer
Proceedings of SPIE (May 14 2001)
Design of nonreciprocal couplers for integrated optics
Proceedings of SPIE (May 01 1994)
Non-Reciprocal Waveguides
Proceedings of SPIE (November 02 1986)

Back to Top