This disclosure presents a docking station into which a test card can be inserted for rapid analyte detection and reporting. This docking station has portable capability and can include wire or wireless transmission to a local server or cloud-based server. A test card that has a test structure located on the test structure that includes a modified waveguide can be inserted into the and a docking station that includes a laser and interferometer provides for accurate and rapid detection of a test sample.

This disclosure presents a docking station into which a test card can be inserted for rapid analyte detection and reporting. This docking station has portable capability and can include wire or wireless transmission to a local server or cloud-based server. A test card that has a test structure located on the test structure that includes a modified waveguide can be inserted into the and a docking station that includes a laser and interferometer provides for accurate and rapid detection of a test sample.

Provided are an optical sensor and an analyzer, including an optical sensor section in which a cladding layer of an optical fiber is removed so as to expose a core layer by a predetermined optical path length, and a protective material is added to a surface of the exposed core layer, the protective material having higher resistance to an organic solvent, base, or acid than that of the cladding layer; a light source device that causes light to enter one end of the optical fiber; a light receiving device that receives transmitted light emitted from another end of the optical fiber; and a control device that controls the light source device and the light receiving device to measure optical transmittance in the optical sensor based on a ratio of intensity of the light emitted from the light source device to intensity of the light received by the light receiving device.

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. The hybrid waveguide coupler according to embodiments of the present application features cheap manufacturing materials, simple structure and ease of fabrication.

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. The hybrid waveguide coupler according to embodiments of the present application features cheap manufacturing materials, simple structure and ease of fabrication.

A device for measuring the state of a phase change material inside a vessel, the device includes at least one optical fiber arranged inside the vessel, the optical fiber including a cladding around a core, a light source emitting light coupled into a first end of the at least one optical fiber at a wavelength , optical measuring devices for measuring the amount of light at the output at a second end of the at least one optical fiber. The at least one optical fiber also includes a plurality of sections with the cladding removed so that at these sections the core is in direct contact with the phase change material inside the vessel and where the refractive index at the wavelength of the core is higher than that of the phase change material in a first phase and lower in a second phase.

A device for measuring the state of a phase change material inside a vessel, the device includes at least one optical fiber arranged inside the vessel, the optical fiber including a cladding around a core, a light source emitting light coupled into a first end of the at least one optical fiber at a wavelength , optical measuring devices for measuring the amount of light at the output at a second end of the at least one optical fiber. The at least one optical fiber also includes a plurality of sections with the cladding removed so that at these sections the core is in direct contact with the phase change material inside the vessel and where the refractive index at the wavelength of the core is higher than that of the phase change material in a first phase and lower in a second phase.

Provided are an optical sensor and an analyzer, including an optical sensor section in which a cladding layer of an optical fiber is removed so as to expose a core layer by a predetermined optical path length, and a protective material is added to a surface of the exposed core layer, the protective material having higher resistance to an organic solvent, base, or acid than that of the cladding layer; a light source device that causes light to enter one end of the optical fiber; a light receiving device that receives transmitted light emitted from another end of the optical fiber; and a control device that controls the light source device and the light receiving device to measure optical transmittance in the optical sensor based on a ratio of intensity of the light emitted from the light source device to intensity of the light received by the light receiving device.

An optical oil component sensor and a sensing method using the sensor, which can identify similar fuel oil in real time. The optical oil component sensor includes a light source unit, a reference optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, a sensing optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, wherein a portion of the sensing optical waveguide is formed to be in contact with test target oil, a light-receiving unit for receiving both a reference light signal, output from the reference optical waveguide, and a test light signal, output from the sensing optical waveguide, and a control unit for identifying components of the test target oil by comparing optical properties of the reference light signal and the test light signal with each other.

An optical oil component sensor and a sensing method using the sensor, which can identify similar fuel oil in real time. The optical oil component sensor includes a light source unit, a reference optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, a sensing optical waveguide, configured to guide light thereinto, for receiving and outputting light emitted from the light source unit, wherein a portion of the sensing optical waveguide is formed to be in contact with test target oil, a light-receiving unit for receiving both a reference light signal, output from the reference optical waveguide, and a test light signal, output from the sensing optical waveguide, and a control unit for identifying components of the test target oil by comparing optical properties of the reference light signal and the test light signal with each other.