Integrated broadband Ce:YIG/Si Mach–Zehnder optical isolators with over 100  nm tuning range

Author(s)
D. Huang, P. Pintus, Y. Shoji, P. Morton, T. Mizumoto, and J. E. Bowers
Publication Image
Cross section of the fabricated waveguide with the fundamental TM mode overlaid.
Publication Date
Publication Type
Journal
Journal/Conference Name
Optics Letters
Indexing
Volume 42, Issue 23, pages 4901-4904

We demonstrate integrated optical isolators with broadband behavior for the standard silicon-on-insulator platform. We achieve over 20 dB of optical isolation across 18 nm of optical bandwidth. The isolator is completely electrically controlled and does not require a permanent magnet. Furthermore, we demonstrate the ability to tune the central operating wavelength of the isolator across 100 nm, which covers the entire S + C telecom bands. These devices show promise for integration in optical systems in which broadband isolation is needed such as wavelength multiplexed systems or optical sensors.

Publication File
More Research Areas
Isolators & Circulators