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

Volume

9

Issue

5

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

631

Lastpage

633

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.588165

Filename

588165