Figure 12

(a) Transmission spectra of the ring isolator with external radial magnetic fields in different directions. (b) Transmission spectrum of the ring resonator before bonding with Ce:YIG. Ce:YIG, cerium-substituted yttrium iron garnet.

(a) Transmission spectra of the ring isolator with external radial magnetic fields in different directions. (b) Transmission spectrum of the ring resonator before bonding with Ce:YIG. Ce:YIG, cerium-substituted yttrium iron garnet.