Title :
Polycrystalline-metal-ferromagnetic optical waveguide isolator (POWI) for monolithic-integration with diode-laser devices
Author :
Hammer, J.M. ; Abeles, J.H. ; Channin, D.J.
Author_Institution :
Photonics Consulting, Annapolis, MD, USA
fDate :
5/1/1997 12:00:00 AM
Abstract :
Optical Faraday rotation in polycrystalline or amorphous thin films of ferromagnetic materials can be used to obtain true-optical isolators and nonreciprocal-TE-TM-mode converters which cover a wide wavelength range. These can be integrated with semiconductor lasers and other integrated optic devices because the films do not require epitaxial deposition. A detailed description and analysis of an integrable isolator with better than 30-dB isolation ratio and low insertion loss in the 1.5-μm wavelength region is given.
Keywords :
Faraday effect; ferromagnetic materials; ferromagnetism; integrated optoelectronics; magneto-optical isolators; optical communication equipment; optical rotation; semiconductor lasers; /spl mu/m wavelength region; 1.5 mum; diode-laser devices; epitaxial deposition; ferromagnetic materials; integrable isolator; integrated optic devices; isolation ratio; low insertion loss; monolithic-integration; nonreciprocal-TE-TM-mode converters; optical Faraday rotation; polycrystalline or amorphous thin films; polycrystalline-metal-ferromagnetic optical waveguide isolator; semiconductor lasers; true-optical isolators; wide wavelength range; Amorphous materials; Isolators; Magnetic materials; Optical devices; Optical films; Optical waveguides; Semiconductor diodes; Semiconductor thin films; Semiconductor waveguides; Wavelength converters;
Journal_Title :
Photonics Technology Letters, IEEE
