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Proceedings Paper

Integrated Optical Isolator With Polarization Dependent Absorber
Author(s): J. Seidenberg; N. Thorweihe; D. Seidenberg; A. Hofer; H. J. Schmitt; J. P. Krumme
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Paper Abstract

Today modern optical communication systems, based on single mode fibers, are specially designed to operate at extremely high transmission rates. Unfortunately the achievable data rates are strongly limited by fluctuating perturbations of the semiconductor laser diode used as transmitter. Mainly the perturbations are caused by undesired reflections of light in the optical communication network returning back to the laser diode. This troubling feedback can be eliminated by the application of an integrated optical isolator put between the transmitter diode and the connecting fiber. These isolators should have excellent transmission of light travelling in the forward direction. On the other hand backward travelling waves should be absorbed as completely as possible. The present paper shows the design of a practical device with corresponding properties as mentioned above. For this isolator structure numerical calculations of light propagation and mode conversion effects are demonstrated.

Paper Details

Date Published: 14 December 1989
PDF: 6 pages
Proc. SPIE 1126, Electro-Optic and Magneto-Optic Materials and Applications, (14 December 1989); doi: 10.1117/12.961383
Show Author Affiliations
J. Seidenberg, University of Technology (Germany)
N. Thorweihe, University of Technology (Germany)
D. Seidenberg, University of Technology (Germany)
A. Hofer, University of Technology (Germany)
H. J. Schmitt, University of Technology (Germany)
J. P. Krumme, Philips Research Laboratory Hamburg (Germany)

Published in SPIE Proceedings Vol. 1126:
Electro-Optic and Magneto-Optic Materials and Applications
Jean-Paul Castera, Editor(s)

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