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Authors: W. Van Parys, D. Van Thourhout, R. Baets
Title: Optimization of a TM-mode Amplifying Waveguide
Format: International Conference Proceedings
Publication date: 5/2007
Journal/Conference/Book: IEEE/LEOS Benelux Annual Workshop 2007
Volume(Issue): p.23-24
Location: Eindhoven, Netherlands
Citations: Look up on Google Scholar
Download: Download this Publication (74KB) (74KB)


An optical isolator that can easily be integrated with its source would significantly decrease
the cost of a laser diode module. A promising scheme consists of an amplifying
waveguide covered with a magnetized ferromagnetic metal. Earlier, we demonstrated this
concept experimentally. Here we report on the optimization of the isolator. Magneto-optic
waveguide calculations revealed a subtle interplay between the waveguide dimensions,
the cladding material and the properties of the metal film. Our experimental result of
12.7dB optical isolation combined with full compensation of the internal loss is the best
ever obtained. With this performance practical implementation is now within reach.

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