CPC G02B 6/2934 (2013.01) [G02B 6/10 (2013.01); G02B 6/245 (2013.01); G02B 6/255 (2013.01); H01P 7/082 (2013.01); H01S 3/1062 (2013.01)] | 7 Claims |
1. A ring resonator, comprising:
a core having two ends, wherein both ends of the core in a lengthwise direction are connected to have a circular shape;
a cladding surrounding the core;
a jacket surrounding the cladding;
two sleeves, wherein each of the two sleeves surrounds a portion of the jacket; and
a shrinking sleeve that is arranged to surround a portion where both ends of the core are connected to each other;
wherein a portion of the core is exposed from the cladding and the jacket;
wherein the shrinking sleeve is fitted to the jacket; and
wherein the two sleeves are arranged at positions, respectively, which are symmetrical about the center of the ring resonator.
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2. A method of manufacturing a ring resonator, comprising:
removing portions of a jacket which are arranged on both ends and a central portion of an optical fiber, wherein the optical fiber includes a core having a predetermined length, a cladding surrounding the core, and the jacket surrounding the cladding;
inserting two sleeves, each of which surrounds a remaining portion of the jacket;
connecting both ends of the optical fiber;
providing a shrinking sleeve to surround a portion where both ends of the optical fiber are connected; and
etching the cladding arranged in the central portion of the optical fiber from which the portion of the jacket is removed;
wherein the shrinking sleeve is fitted to the jacket; and
wherein the two sleeves are arranged at positions, respectively, which are symmetrical about the center of the ring resonator.
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