Title :
Integrated-optic double-ring resonators with a wide free spectral range of 100 GHz
Author :
Suzuki, Senichi ; Oda, Kazuhiro ; Hibino, Yoshinori
Author_Institution :
NTT Opto-Electron. Labs., Ibaraki, Japan
fDate :
8/1/1995 12:00:00 AM
Abstract :
Integrated-optic double-ring resonators with a wide free spectral range (FSR) of 100 GHz are fabricated using GeO2-doped silica waveguides with a high relative refractive index difference (Δ) of 1.5%. The resonators are composed of two ring resonators comprising small ring waveguides with radii of 1.75 and 2.0 mm. The double-ring resonator module exhibited a wide FSR of 98.0 GHz, a finesse of higher than 138, a low crosstalk of less than -11.7 dB, and a low insertion loss of 6.1 dB. The measured FSR of 98.0 GHz is wider than any previously reported ring resonator composed of optical waveguides
Keywords :
integrated optics; optical crosstalk; optical losses; optical resonators; optical waveguides; refractive index; 100 GHz; 3.5 mm; 4 mm; 6.1 dB; GeO2-SiO2; GeO2-doped silica waveguides; double-ring resonator module; high relative refractive index difference; integrated-optic double-ring resonators; low crosstalk; low insertion loss; small ring waveguides; wide free spectral range; Insertion loss; Optical crosstalk; Optical losses; Optical refraction; Optical resonators; Optical ring resonators; Optical variables control; Optical waveguides; Refractive index; Silicon compounds;
Journal_Title :
Lightwave Technology, Journal of
