Title :
Improved method for automatic evaluation of the parameters of single-mode fiber-optic ring resonators
Author :
Schliep, F. ; Garus, D. ; Hereth, R.
Author_Institution :
Lehrstuhl fur Allgemeine Elektrotech. & Elektrooptik, Ruhr-Univ., Bochum, Germany
Abstract :
Resonance characteristics of fiber-optic ring resonators, e,g., the finesse, are mainly determined by the loss and the coupling coefficient of the fused tapered coupler within the resonator. From measuring the resonance characteristics these parameters can be evaluated nondestructively. This is demonstrated by investigating spliceless nonpolarization maintaining ring resonators using an automated measurement system with an enhanced accuracy by numerical approximation of the resonance dip. Standard deviations of the finesse below 1%, of the coupling factor below 0.1% and of the loss coefficient below 0.01% have been achieved.
Keywords :
automatic test equipment; fibre optic sensors; gyroscopes; optical fibre couplers; optical fibre losses; optical fibre polarisation; optical fibre testing; optical loss measurement; optical resonators; automated measurement system; automatic evaluation; coupling coefficient; coupling factor; finesse; fused tapered coupler; loss; loss coefficient; resonance characteristics; resonance dip; single-mode fiber-optic ring resonators; spliceless nonpolarization maintaining ring resonators; Fiber lasers; Gyroscopes; Optical fiber couplers; Optical fiber polarization; Optical losses; Optical resonators; Optical ring resonators; Optical sensors; Resonance; Ring lasers;
Journal_Title :
Photonics Technology Letters, IEEE
