Fig. 1. (a) Schematic configuration of the proposed MRR with one NPS. (b) Zoom-in view of NPS marked with dashed box in (a).

Fig. 2. (a) Normalized transmission spectrum from IN to OUT1. (b) Normalized transmission spectrum from IN to OUT2. (c) Zoom-in view of (a) and (b) in the wavelength range of 1551.8–1555.8 nm.

Fig. 3. Micrograph of the fabricated devices with (a) one and (b) two NPSs.

Fig. 4. (a) Measured transmission spectrum from IN to OUT2 of the fabricated device with one NPS. (b) Zoom-in spectrum around one split resonance at λ1 in (a) fitted by the dashed curve calculated from Eqs. (1) and (2). (c)–(f) Measured transmission spectra from IN to OUT1 when the power applied to the microheater is 0.0, 5.8, 11.1, and 16.1 mW, respectively.

Fig. 5. Measured transmission spectra from IN to OUT1 of the fabricated device with two NPSs when the power applied to the microheater along one of the two NPSs is (a) 0.0, (b) 4.5, (c) 8.8, (d) 13.0, (e) 17.0, and (f) 20.7 mW, respectively.

Fig. 6. Experimental setup for system demonstration of dynamic channel routing using the fabricated device. VOA, variable optical attenuator.

Fig. 7. Eye diagrams of 10  Gb/s NRZ signal output from (a-I) OUT1 and (a-II) OUT2 of the fabricated device with one NPS at wavelengths of λ1–λ4 when the heating power is 0.0, 5.8, 11.1, and 16.1 mW, respectively. Eye diagrams of 10  Gb/s NRZ signal output from (b-I) OUT1 and (b-II) OUT2 of the fabricated device with two NPSs at wavelengths of λ1′–λ6′ when the heating power is 0.0, 4.5, 8.8, 13.0, 17.0, and 20.7 mW, respectively.

Fig. 8. BER curves measured with the fabricated devices with (a) one and (b) two NPSs.