35results about How to "Good coupling efficiency" patented technology

The invention relates to a space optical isolator based on an oxygen ion implantation terbium gallium garnet optical waveguide and the manufacturing method of an optical waveguide. The method mainly comprises the following steps of forming the optical waveguide in a TGG crystal and realizing a good optical isolation effect. Oxygen ions whose energy is 15 to 17 MeV and dosage is 1 to 10*10 <15> ions / cm <2> are used to bombard the surface of a terbium gallium garnet crystal so as to form an optical waveguide structure. A diamond is used to cut an optical waveguide surface so as to manufacture two parallel grooves, and then a ridge-type optical waveguide structure is formed. Two end surfaces which are vertical to a ridge-type optical waveguide are polished and are taken as an incident end surface and an outgoing end surface. Light is emitted from a laser, and through a polarization maintaining optical fiber, linearly polarized light is acquired; the light is transmitted to an incident optical fiber and is coupled to the optical waveguide through the incident end surface; through the outgoing end surface, the light is coupled to an outgoing optical fiber and is emitted through the polarization maintaining optical fiber; and the stable transmission of the light is realized and a light isolation effect is improved.

An integrated transformer is provided. The integrated transformer includes a first inductor and second inductors. The first inductor includes a first winding having a first outer turn and a second winding having a second outer turn. The second inductor includes a third winding having a third outer turn and a fourth winding having a fourth outer turn. The first and third outer turns substantially overlap, and the second and fourth outer turns substantially overlap. The first and second outer turns are connected to each other through a first segment and a second segment that together form a crossing structure, and the third and fourth outer turns are connected to each other through a third segment and a fourth segment that together form a crossing structure. The first and third segments arein the first metal layer, while the second and fourth segments are in the second metal layer.

An optical coupling lens is used for enabling an optical signal to be coupled between a photoelectric unit and an optical fiber. The optical coupling lens comprises a support unit and a lens unit. The support unit is used for supporting the lens unit. The support unit is provided with a first clamping portion and a second clamping portion. The second clamping portion is located at one end of the first clamping portion and is vertical to the first clamping portion basically. The second clamping portion is provided with an opening in the middle. The lens unit is provided with a first combination portion and a second combination portion. The second combination portion is provided with a bump corresponding to the opening. The cooperation of the first combination portion and the first clamping portion, the cooperation of the second combination portion and the second clamping portion, as well as the cooperation of the bump and the opening enable the lens unit to be fixed on the support unit. The invention also provides an optical communication module having the optical coupling lens.

The invention discloses a chip array and parallel optical fiber passively-coupled optical assembly which comprises an optical fiber array assembly, a coupling alignment positioning block, a lens array, a chip carrier and a photoelectric chip array. The optical fiber array assembly comprises a fixing base and a plurality of parallel optical fibers. The lens array comprises a lens body, a second lens array face, a first lens array face and a reflection face. The photoelectric chip array is pasted to the chip carrier, the coupling alignment positioning block is positioned on the chip carrier, the lens array is positioned on one side of the optical fiber array assembly, the lens array and the optical fiber array assembly are jointly positioned on the coupling alignment positioning block, the lens array and the coupling alignment positioning block are positioned in the mode that guiding columns are fixedly inserted in guiding holes, and the lens array and the fixing base are positioned in the mode that guiding columns are fixedly inserted in guiding holes. The chip array and parallel optical fiber passively-coupled optical assembly is simple in structure and low in manufacturing cost, high-accuracy and high-quality rapid coupling can be achieved through the chip array and parallel optical fiber passively-coupled optical assembly, and the chip array and parallel optical fiber passively-coupled optical assembly is suitable for various products with the parallel optical fiber technology.

The invention relates to a coupling method of an optical receiving sub-module of an optical module, comprising the following steps: S1, fixing TIA, PD, DMUX and an adapter on a housing; Electricity, connect the light source through the adapter, and set a glass block between the adapter and DMUX; S3, select one of the roads for coupling, first fix the position of one of the first lenses in the light propagation direction of the road, and then adjust the first lens position; S4, then adjust and determine the position of the second lens between the adapter and the glass block; S5, remove the auxiliary coupled glass block, set the third lens, SOA and fourth lens on the glass block Lens; S6, and then sequentially adjust and determine the positions of several other first lenses. In the initial stage of coupling, the present invention adopts the translation of the glass block to the optical path to replace the third lens, SOA and fourth lens for coupling, and the function of the glass block is equivalent to the third lens, SOA and fourth lens to simplify the coupling process.

The invention provides a sensing element substrate and a display device comprising the same. The sensing element substrate includes a substrate and a sensing element. The sensing element is located on the substrate and comprises a first electrode, a second electrode, a sensing layer, a conductive layer and a first insulating layer. The first electrode is located on the substrate. The second electrode overlaps the first electrode. The sensing layer is located between the second electrode and the first electrode. The conductive layer overlaps the second electrode and is electrically connected to the first electrode. The conductive layer has a first opening which overlaps the sensing layer. The first insulating layer is located between the conductive layer and the second electrode.

The present invention proposes a three-mode mode division multiplexer with low loss, low crosstalk and graded refractive index distribution, which consists of three identical transmission channels, one of which is the main transmission channel; the radius of the transmission channel is 20 μm, and the core and cladding of the transmission channel The refractive index difference is 0.0015, and the cladding refractive index is 1.442524; the refractive index from the center of the channel core to the cladding changes gradually; the mode LP01 is directly input into the main transmission channel; the mode LP11a and LP11b channels are respectively placed in the main transmission channel cross section x and y In the direction, the channel length is 33mm, and the distance from the main channel is 6μm; in the 1400nm‑1700nm band, the coupling efficiency of the multiplexer is better than ‑0.479dB; the three modes of refractive index gradient distribution, low loss and low crosstalk are realized Modulus multiplexing.

The invention provides an edge-emitting laser element, which comprises a substrate, an n-type buffer layer, a first n-type coating layer, a grating layer, a spacing layer, a lower light limiting unit, an active layer, an upper light limiting unit, a p-type coating layer, a tunneling junction layer and a second n-type coating layer, the tunneling junction layer has the efficacy of blocking the etching process to form the second n-type cladding layer into a predetermined ridge-shaped configuration pattern. After a part of the p-type coating layer is transposed into the n-type coating layer by using the tunnel junction layer, the series resistance of the EEL element is reduced, and the coupling of the light field and the active layer tends to the middle position of the active layer, so that the lower half part of the active layer can be effectively applied, and the light field is closer to the grating layer. The light coupling efficiency of the light field / grating is good, and then the critical current value is reduced.

The invention discloses an optical coupling lens which is used for realizing optical signal coupling between a light emitting element and a light receiving element. The optical coupling lens comprises a fixed device and a lens unit, wherein the fixed device is provided with a body; the body is provided with a through hole; the lens unit comprises an incident surface, an emitting surface and a reflecting surface; an included angle of 45 degrees is formed between the reflecting surface and the incident surface; the emitting surface is perpendicular to the incident surface; an optical signal emitted by the light emitting element enters the lens unit through the through hole and the incident surface, and is emitted from the emitting surface after being reflected by the reflecting surface; the light receiving element is used for receiving the optical signal emitted from the emitting surface. The invention further provides an optical communication module with the optical coupling lens.

The invention discloses a bacterial magnetic particle (BMP)-agglutinin complex and a preparation method and application thereof, belonging to the technical field of separation and purification. The preparation method comprises the following steps: performing surface modification and transformation on BMPs, and adding a cross-linking agent and agglutinin for coupling, thereby obtaining the BMP-agglutinin complex. The surfaces of the BMPs are modified, the influence of self-proteins of the BMPs on subsequent application is eliminated, more primary amino is provided for agglutinin coupling due to the addition of PE, the coupling efficiency is improved, and the dispersity of the BMPs is improved; the cross-linking agent (BS3) serves as a connecting arm, so that covalent coupling is realized between the BMPs and the agglutinin, and an agglutinin recognition sugar chain area is not damaged; and moreover, the concentration of a buffer solution is regulated, the preparation time is shortened, and the coupling efficiency is improved. The complex disclosed by the invention is used for enriching and separating specific glycoproteins, and compared with traditional affinity chromatography, the method disclosed by the invention has the advantages of fewer steps, short time and the like.