Abstract: A whispering gallery mode resonator and a manufacturing method includes a hollow core fiber, a waveguide, a waveguide resonant cavity, a first single-mode fiber and a second single-mode fiber. The waveguide and the waveguide resonant cavity are located in the hollow core fiber. End surface of the first and second single-mode fibers are fused to end surfaces of the hollow core fiber. The waveguide includes an input optical waveguide, an inner surface waveguide having an evanescent field and an output optical waveguide. The two end surfaces of the input optical waveguide are connected with an end surface of the core of the first single-mode fiber and an end surface of the inner surface waveguide respectively. The two end surfaces of the output optical waveguide are connected with an end surface of the core of the second single-mode fiber and the other end surface of the inner surface waveguide respectively.

Abstract: The present application is applicable to the fiber optics field and provides a hybrid fiber coupler including a lead-in single mode fiber, a coreless fiber, a hollow glass tube and a lead-out single mode fiber fusion-spliced sequentially. Both the lead-in single mode fiber and the lead-out single mode fiber include cores and claddings. Cores of the lead-in single mode fiber and the lead-out single mode fiber are not in the same horizontal direction. A curved waveguide is inscribed inside the coreless fiber and the hollow glass tube and cores of the lead-in single mode fiber and the lead-out single mode fiber are connected with said curved waveguide. The hollow glass tube has a micro-channel at either end thereof, and the two micro-channels form a microfluidic channel with the center of the hollow glass tube for allowing the analytical liquid to access the hollow glass tube.

Abstract: The present application is applicable to the fiber optics field and provides a hybrid fiber coupler including a lead-in single mode fiber, a coreless fiber, a hollow glass tube and a lead-out single mode fiber fusion-spliced sequentially. Both the lead-in single mode fiber and the lead-out single mode fiber include cores and claddings. Cores of the lead-in single mode fiber and the lead-out single mode fiber are not in the same horizontal direction. A curved waveguide is inscribed inside the coreless fiber and the hollow glass tube and cores of the lead-in single mode fiber and the lead-out single mode fiber are connected with said curved waveguide. The hollow glass tube has a micro-channel at either end thereof, and the two micro-channels form a microfluidic channel with the center of the hollow glass tube for allowing the analytical liquid to access the hollow glass tube.

Abstract: A whispering gallery mode resonator and a manufacturing method includes a hollow core fiber, a waveguide, a waveguide resonant cavity, a first single-mode fiber and a second single-mode fiber. The waveguide and the waveguide resonant cavity are located in the hollow core fiber. End surface of the first and second single-mode fibers are fused to end surfaces of the hollow core fiber. The waveguide includes an input optical waveguide, an inner surface waveguide having an evanescent field and an output optical waveguide. The two end surfaces of the input optical waveguide are connected with an end surface of the core of the first single-mode fiber and an end surface of the inner surface waveguide respectively. The two end surfaces of the output optical waveguide are connected with an end surface of the core of the second single-mode fiber and the other end surface of the inner surface waveguide respectively.