Imaging Capabilities of Bismuth Iron Garnet Films With Low Growth-Induced Uniaxial Anisotropy

Magnetic pulse generation for high-speed magneto-optic switching

“…At the hardware level, the key to realizing the bandwidth capabilities of optical fiber is optical switches. 1 As optical networks transition toward optical switching, magnetooptic (MO) devices offer excellent promise for path defining switching due to their low insertion loss, their ability to be integrated, 2,3 recent material advances, 4,5 and the nonreciprocity of the induced Faraday rotation. Recent MO switches have been proposed, but their switching speed has been limited to approximately 1 ls.…”

Interferometric switches for transparent networks : development and integration

“…Several critical challenges are immediately encountered when translating the proposed fiber-based magnet-optic switch designs to an integrated silicon-on-insulator waveguide based implementation. The first is that while advances have been made in the growth techniques of magneto-optic materials (Tkachuk et al 2009;Tkachuk et al 2008 (Aichele et al 2003;Krumme, Doorman & Eckart 1984).…”

“…While some work has previously been done investigating these types of switches (Didosyan, Hauser & Reider 2002), the work was hampered due to the lack of sufficiently high quality magneto-optic materials. Recent advances in bismuth-substituted iron garnets and orthoferrites (Bolduc et al 2006;Fratello, Licht & Brandle 1996;Kalandadze 2008;Nomura et al 2011;Shaoying et al 2007;Tkachuk et al 2009;Zhang, Yang & Bai 2011) have yielded materials with a high magneto-optic figure of merit, giving low insertion losses, ultrawide bandwidths and more rotation for less applied field. Given these advances, this discourse focuses on the development and integration of magneto-optic switches for next generation, transparent networks.…”

New developments in magneto-optic interferometric switching

“…These garnets are specially designed ferrites to be used in optical systems operating at a wavelength of 1550 nm. When an external magnetic field is applied and 1550 nm light is passed through these materials, the light experiences the Faraday effect [25].…”