Abstract: An optical fiber 200 with a high thermal resistance fiber Bragg grating (FBG) 130. Compared to existing FBG's, the invention provides greatly enhanced thermal stability, being stable up to 1200° C. The grating reflectivity and resonant wavelength are maintained for extended duration at high temperatures. The FBG is thus suitable in high temperature sensors. The high thermal resistance of the FBG is obtained in a method of pre-annealing the optical fiber 105 at high temperature prior to inscribing the FBG. The high thermal resistance is optionally enhanced in a post-FBG creation step of heat treating the optical fiber 105 and FBG.

Abstract: An optical fiber 200 with a high thermal resistance fiber Bragg grating (FBG) 130. Compared to existing FBG's, the invention provides greatly enhanced thermal stability, being stable up to 1200° C. The grating reflectivity and resonant wavelength are maintained for extended duration at high temperatures. The FBG is thus suitable in high temperature sensors. The high thermal resistance of the FBG is obtained in a method of pre-annealing the optical fiber 105 at high temperature prior to inscribing the FBG. The high thermal resistance is optionally enhanced in a post-FBG creation step of heat treating the optical fiber 105 and FBG.

Abstract: In the present invention, methods and systems for fabricating novel LPFGs are taught. Fabrication is preformed by focusing a CO2 laser beam having a diameter of 30 to 40 ?m onto a fiber, such fiber being fixed and weighted on either ends. The variations of transmission spectrum and polarization dependent (PDL) loss of the CO2 laser-grooved LPFGs with different fabrication parameters as functions of applied as functions of applied tensile stain are demonstrated and evaluated.

Abstract: The present invention discloses a refrigerator including a refrigeration chamber which comprises an upper wall, a lower wall, two side walls and a rear wall connected to the upper wall, the lower wall and two side walls to form a receiving container surroundingly. The refrigeration chamber is provided therein with a baffle which has a distance of 0 to 10 mm from the rear wall of the refrigeration chamber. As the refrigerating chamber is provided with the baffle, vegetable and fruit etc. can be prevented from frostbiting due to directly contacting with the rear wall of the refrigeration chamber, and the temperature in the refrigeration chamber can be kept even.

Abstract: ABSTRACT A refrigerator comprising a refrigerator housing defining first, second, and third compartments separated by insulated walls, a refrigeration system supplying cold air to the first, second, and third compartments, first, second, and third sensors operative to detect temperature in a respective one of the first, second, and third compartments and control circuitry in electrical communication with the sensors, the control circuitry controlling flow of the cold air into each of the first, second, and third compartments so as to facilitate maintaining a respective desired temperature therein, where the desired temperature of each of the first, second, and third compartments is variable and may be set by a user independently with respect to each other.

Abstract: The present invention provides a refrigeration apparatus having improved access to ice comprising a freezer compartment, a slidable support occupying a portion of the freezer compartment and configured to open to an extended position, an ice bin moveable with the slidable support and occupying at least a portion of the slidable support, and a stationary ice maker attached to the freezer compartment and located above the portion of the slidable support, wherein when the slidable support is pulled opened to the extended position, access to the ice bin is unobstructed by the ice maker.

Abstract: The present invention relates to a multi-temperature control refrigerator, in which an ice machine is installed and the cooling mode of the refrigerator is a mixed air-cooling and direct cooling mode. Particularly, the present invention relates to a refrigerator having ice-making function, in which the refrigeration cycle is a dual cycle and two different evaporators are included. Due to that the ice making room of the of the refrigerator of the present invention adopts a mixed air-cooling and direct cooling mode, and that impulse solenoid valves and dual temperature control device are introduced to the dual cycle system, the energy is optimally distributed and utilized, the fluctuation of temperature is small and the ice making efficiency of the ice making room and the quality of the ice cubes are much improved. And the whole refrigerator makes less noise, consumes fewer refrigerants and makes ice of good quality rapidly.

Abstract: In the present invention, methods and systems for fabricating novel LPFGs are taught. Fabrication is preformed by focusing a CO2 laser beam having a diameter of 30 to 40 ?m onto a fiber, such fiber being fixed and weighted on either ends. The variations of transmission spectrum and polarization dependent (PDL) loss of the CO2 laser-grooved LPFGs with different fabrication parameters as functions of applied as functions of applied tensile stain are demonstrated and evaluated.

Abstract: An optical pulses emitter includes a first and a second Fabry-Perot laser diodes. The first and second laser diodes have a first and second working optical wavelength band respectively, and the first and second working wavelength bands has at least an overlapped wavelength band. The emitter also includes a signal source in connection with the first laser diode such that a plurality of optical pulses over the first working optical wavelength band is generated and an optical filter for filtering the optical pulses so as to output a plurality of optical pulses primarily of a desired optical wavelength, which falls into the overlapped wavelength band. The emitter further includes an optical amplifier along an optical path between the first and second Fabry-Perot laser diodes for amplifying the optical signals passing therethrough.

Abstract: An optical pulses emitter includes a first and a second Fabry-Perot laser diodes. The first and second laser diodes have a first and second working optical wavelength band respectively, and the first and second working wavelength bands has at least an overlapped wavelength band. The emitter also includes a signal source in connection with the first laser diode such that a plurality of optical pulses over the first working optical wavelength band is generated and an optical filter for filtering the optical pulses so as to output a plurality of optical pulses primarily of a desired optical wavelength, which falls into the overlapped wavelength band. The emitter further includes an optical amplifier along an optical path between the first and second Fabry-Perot laser diodes for amplifying the optical signals passing therethrough.

Abstract: This invention relates to a refrigerator with a foldable table, wherein the table can be unfolded when it is needed and can be folded when it is not needed. So the product of the present invention has the functions of both a refrigerator and a table, and also can save some room space providing a more reasonable room layout.

Abstract: This invention relates to a refrigerator with a foldable table, wherein the table can be unfolded when it is needed and can be folded when it is not needed. So the product of the present invention has the functions of both a refrigerator and a table, and also can save some room space providing a more reasonable room layout.