Abstract: An external cavity tunable laser includes a gain median module to generate a broadband optical spectrum covering a predetermined wavelength range; a collimate lens turning a diverging beam into a collimated beam; a pair of etalons to tune frequency; an actuator to adjust an external cavity optical pathlength; a bandpass filter to block one or more frequencies outside the predetermined wavelength range; a beam splitter to split a percentage of the beam to a photodetector; a reflection mirror for feedback to gain median waveguide; an isolator for preventing reflecting light back to the external cavity; and a hermetically sealed housing less than 0.15 cubic centimeters.

Abstract: A fixing auxiliary device includes a support frame, an elastic member, and a plurality of first support members. The first support member includes a first segment, a second segment, and a third segment which are connected in sequence. The third segment is detachably connected to the support frame, the first segment is configured to extend into a first component. An end of the second segment facing away from the third segment includes a first stop surface configured for stopping the first component from moving towards the support frame. The elastic member is configured to provide an elastic force to a second component to press against the support frame.

Abstract: An outer box includes an outer case including a rear wall; and a fixing device fixed on the rear wall. The fixing device includes a first fixing member, a second fixing member, at least two fixing rods, and at least two fastening members. The first fixing member is fixed on the rear wall. The at least two fixing rods are connected with the first fixing member. At least one of the at least two fixing rods is slidably connected with the first fixing member. The second fixing member is slidably arranged on the at least two fixing rods, the at least two fastening members are fixed with the at least two fixing rods respectively so as to limit the movement of the second fixing member along the at least two fixing rods.

Abstract: An optoelectronic component includes an optical transducer made of III-V semiconductor material and an optical scanning microelectromechanical system comprising a mirror. The optical transducer and the optical scanning microelectromechanical system are produced on a common wafer comprising at least a first layer made of silicon or silicon nitride with a thickness of less than one micron and wherein at least the mirror and its holding springs are produced. In a first variant, the mobile parts of the optical scanning microelectromechanical system are produced in various layers of silicon. In a second variant, the mobile parts of the optical scanning microelectromechanical system are produced in the layer of III-V semiconductor material.

Abstract: An outer case includes an upper case, a lower case, and a plurality of guiding structures. The lower case includes a bottom wall defining a plurality of through holes. The guiding structures are arranged on the bottom wall. Each of the guiding structures includes a first guiding plate and a second guiding plate, the first guiding plate includes a first connecting part and a first blocking part connected with the first connecting part, the second guiding plate includes a second connecting part and a second blocking part connected with the second connecting part, the first connecting part and the second connecting part face each other. The first blocking part is suspended on the bottom wall through the first connecting part, the second blocking part is suspended on the bottom wall through the second connecting part, the first blocking part and the second blocking part are staggered.

Abstract: A server with a cooling system which can maintain a constant and preferred operating temperature for the server includes a computer and a heat dissipation device for dissipating heat generated by the computer. The heat dissipation device includes a liquid tank and a heat exchange device. The liquid tank defines an accommodating cavity for accommodating non-conductive cooling liquid and the computer. The heat exchange device is connected to the liquid tank to exchange heat with the non-conductive cooling liquid in the liquid tank.

Abstract: An outer case includes an upper case, a lower case, and a plurality of guiding structures. The lower case includes a bottom wall defining a plurality of through holes. The guiding structures are arranged on the bottom wall. Each of the guiding structures includes a first guiding plate and a second guiding plate, the first guiding plate includes a first connecting part and a first blocking part connected with the first connecting part, the second guiding plate includes a second connecting part and a second blocking part connected with the second connecting part, the first connecting part and the second connecting part face each other. The first blocking part is suspended on the bottom wall through the first connecting part, the second blocking part is suspended on the bottom wall through the second connecting part, the first blocking part and the second blocking part are staggered.

Abstract: An outer box includes an outer case including a rear wall; and a fixing device fixed on the rear wall. The fixing device includes a first fixing member, a second fixing member, at least two fixing rods, and at least two fastening members. The first fixing member is fixed on the rear wall. The at least two fixing rods are connected with the first fixing member. At least one of the at least two fixing rods is slidably connected with the first fixing member. The second fixing member is slidably arranged on the at least two fixing rods, the at least two fastening members are fixed with the at least two fixing rods respectively so as to limit the movement of the second fixing member along the at least two fixing rods.

Abstract: The present invention discloses a method and system for processing semantic fragments. Some embodiments of the present invention provides a method for processing semantic fragments. The method comprises: obtaining a plurality of groups of semantic fragments, the plurality of groups of semantic fragments at least including a first group of semantic fragments generated from a first data processing flow and a second group of semantic fragments generated from a second data processing flow, the first data processing flow being different from the second data processing flow; and merging the first group of semantic fragment and the second group of semantic fragment based on semantic equivalence. A corresponding system is also disclosed.

Abstract: The present invention discloses a method and system for processing semantic fragments. Some embodiments of the present invention provides a method for processing semantic fragments. The method comprises: obtaining a plurality of groups of semantic fragments, the plurality of groups of semantic fragments at least including a first group of semantic fragments generated from a first data processing flow and a second group of semantic fragments generated from a second data processing flow, the first data processing flow being different from the second data processing flow; and merging the first group of semantic fragment and the second group of semantic fragment based on semantic equivalence. A corresponding system is also disclosed.

Abstract: The installation structure for the lithium battery box of the electric vehicle includes a battery box body and a vehicle frame oblique beam, where an insertion hole is produced in a front end of the battery box body; an installation groove is produced in the vehicle frame oblique beam; a front battery box base is installed in a front installation groove; an insertion bolt driven through a key is arranged on the front battery box base; where an upwards-bulged arc-shaped limit groove is produced in the middle of the lower cover in the axis of the box body; the installation groove of the vehicle frame oblique beam is an installation groove with a front opening and a rear opening; a limit bulge adaptive to the arc-shaped limit groove is produced on a groove bottom of the installation groove.

Abstract: In the field of narrow linewidth laser sources and a laser device that comprises a laser source and a waveguide of determined refractive index with which it is coupled, a waveguide is single-mode and includes at least four reflectors in the form of trenches etched into the waveguide and irregularly distributed along the waveguide, the distance separating two neighbouring reflectors being above 1 ?m, and the waveguide and the laser source have respective lengths such that the length of waveguide over which the reflectors are located is greater than the length of the laser source itself.

Abstract: The installation structure for the lithium battery box of the electric vehicle includes a battery box body and a vehicle frame oblique beam, where an insertion hole is produced in a front end of the battery box body; an installation groove is produced in the vehicle frame oblique beam; a front battery box base is installed in a front installation groove; an insertion bolt driven through a key is arranged on the front battery box base; where an upwards-bulged arc-shaped limit groove is produced in the middle of the lower cover in the axis of the box body; the installation groove of the vehicle frame oblique beam is an installation groove with a front opening and a rear opening; a limit bulge adaptive to the arc-shaped limit groove is produced on a groove bottom of the installation groove.

Abstract: The present invention concerns a method for controlling the emitting wavelength of a laser source (10) for a passive optical network, the laser source (10) comprising: a first Bragg mirror (12), a second Bragg mirror (14), a cavity (16) delimited by both Bragg mirrors (12, 14), the cavity (16) comprising an optical filter (18) and an active medium (20), the method comprising the steps of: measuring the temperature of the active medium (20), setting the temperature of the optical filter (18) in accordance with the measured temperature of the active medium (20), the temperature of the optical filter (18) being higher than the measured temperature.

Abstract: The present invention discloses a method and system for processing semantic fragments. Some embodiments of the present invention provides a method for processing semantic fragments. The method comprises: obtaining a plurality of groups of semantic fragments, the plurality of groups of semantic fragments at least including a first group of semantic fragments generated from a first data processing flow and a second group of semantic fragments generated from a second data processing flow, the first data processing flow being different from the second data processing flow; and merging the first group of semantic fragment and the second group of semantic fragment based on semantic equivalence. A corresponding system is also disclosed.

Abstract: A camera module includes an image sensor, a circuit board, and a stiffener. The stiffener is located one side of the circuit board and includes a bottom plate grounded. The image sensor is located on another side of the circuit board. The stiffener includes a sidewall extending from the bottom plate. The sidewall and the bottom plate cooperatively hold the circuit board. An insulative coating is coated on the sidewall to avoid short circuiting.

Abstract: A wavelength tunable laser emission device (1) comprises: a first waveguide (31) comprising an optical amplification means for producing a stimulated light emission, the first waveguide extending in a longitudinal direction of the emission device, a second waveguide (5) made of silicon on silicon dioxide and disposed parallel to the first waveguide spaced from the first waveguide in a vertical direction of the emission device so as to allow the existence of a hybrid optical mode coupled at one and the same time to the second waveguide and to the first waveguide, the second waveguide comprising a distributed reflector (9) along the second waveguide, the second waveguide comprising transverse zones (11, 12, 13, 14) doped differently so as to form a polar junction oriented in a transverse direction of the emission device. Electrodes (15, 16) coupled to the doped transverse zones modify an effective index seen by the hybrid optical mode.

Abstract: A coupler/splitter including two neighboring coplanar waveguide portions extending in a same direction, the first portion having a constant cross-section, the second portion having a variable cross-section so that the effective index of the second waveguide portion varies, in the upstream-to-downstream direction, from a first lower value to a second value higher than the effective index of the first portion, in adiabatic coupling conditions.

Abstract: The present invention concerns a method for controlling the emitting wavelength of a laser source (10) for a passive optical network, the laser source (10) comprising: a first Bragg mirror (12), a second Bragg mirror (14), a cavity (16) delimited by both Bragg mirrors (12, 14), the cavity (16) comprising an optical filter (18) and an active medium (20), the method comprising the steps of: measuring the temperature of the active medium (20), setting the temperature of the optical filter (18) in accordance with the measured temperature of the active medium (20), the temperature of the optical filter (18) being higher than the measured temperature.