Full text loading...
Experimental transmission spectra (solid) and theoretical fittings (dashed) obtained using Eq. (6). (a) The large detuning between the control modes (1) and probe mode (2). Inset: SEM picture of the PDMS-coated microtoroid. [(b)–(d)] The control and probe modes have detunings of , 0.00335 nm, respectively. Red arrows: resonant positions of the WGMs. Blue arrow: blueshift of the probe mode with increasing temperature. The fitting parameters are set as , and (a) , (b) , (c) , and (d) . The coupling parameters of the two modes are different, which implies the cavity-taper gap changes a little bit with the temperature increase.
(a) Schematic illustration of a two-mode microcavity coupled to a waveguide. [(b)–(d)] Theoretical transmission spectra of a waveguide coupled two-mode resonator system with detuning between the control and probe modes of , , and , respectively. The parameters used for calculation are , , and . (e) Theoretical transmission spectrum of a waveguide coupled single-mode resonator system. Parameters for calculation . [(f)–(i)] The phase shifts of the transmission fields. The parameters are the same as those in [(b)–(e)], respectively.
[(a)–(e)] Theoretical transmission spectra for different coupling conditions of the high- control mode. The parameters used are , , and . The inset is an experimental transmission spectrum showing the case of (d).
Article metrics loading...