42results about How to "Reduce the difficulty of coupling" patented technology

The invention provides a plastic fibre rotating connector. One end of the fixed end sleeve of a fixed head is embedded with a fixed end fibre and the other end thereof is embedded with a fixed end lens; the end surfaces of the fixed end fibre and the fixed end lens are closely matched with each other in a contacting way; a fixed metal sleeve is arranged outside the fixed end sleeve. A movable endfibre is embedded at one end of the movable end sleeve of the rotating head and a movable end lens is embedded at the other end thereof; the end surfaces of the movable end fibre and the movable end lens are closely matched with each other in a contacting way; a rotating metal sleeve is arranged outside the movable end sleeve. The fixed end fibre and the movable end fibre are plastic fibres; the fixed end fibre sleeve is arranged outside at the end of the fixed end fibre which is embedded into the fixed end sleeve; the movable end fibre sleeve is arranged outside at the end of the movable endfibre which is embedded into the movable end sleeve. The plastic fibre rotating connector of the invention solves the technical problems that: in the background technique, the numerical aperture and core diameter of the fibre are small, the requirements on the mechanical processing precision and the assembly coupling precision are extremely rigid, the coupling difficulty is large and the cost is high. The plastic fibre rotating connector is especially applicable to local area network with a plurality of connecting points, and the short-distance information transmission system.

The present invention provides a method for adjusting the wavelength of an optical module by using astigmatism. The optical module includes a plurality of lasers, an optical multiplexer for combining the light of the multiple lasers into one path, and an optical fiber adapter coupled with the optical multiplexer. The method includes the following steps : (1) after fixing the laser, optical multiplexer and fiber optic adapter, obtain the wavelength of each laser; (2) compare the obtained wavelength of each laser with the corresponding center wavelength, and obtain the difference with the center wavelength; (3) Obtain the average value of the difference between the wavelength and the center wavelength of each laser, and obtain the compensation temperature corresponding to the average value of the wavelength difference according to the corresponding relationship between the temperature of the laser and the wavelength; temperature compensation. The invention avoids increasing repair cost and time, avoids increasing production cost and difficulty, and has a simple debugging method.

The invention provides a regular hexagonal annular microstrip line double-pass charged tuning filter, which includes a dielectric substrate and a hexagonal annular microstrip line structure on the upper surface of the dielectric substrate; the regular hexagonal ring includes an outer ring and an inner ring, A pair of 50 ohm input and output microstrip lines, a pair of V-shaped microstrip lines, an opening on one side of the regular hexagonal outer ring, an opening on the left and right sides of the regular hexagonal inner ring, and four pairs of parallel wires are drawn from the opening. Microstrip lines, two pairs of parallel microstrip lines point to the center of the inner ring, and the microstrip line that is far away from the 50 ohm input and output microstrip lines is connected to the external bias circuit, and the other two pairs of parallel microstrip lines are far away from the inner ring. The center of the ring is connected to the outer ring. When different bias voltages are used, the first passband of the filter is continuously adjustable under the action of the varactor diode, and the second passband remains unchanged. The filter of the invention has the characteristics of small size, low insertion loss, continuously adjustable center frequency, high out-of-band suppression, fast tuning speed, convenient tuning and the like.

The invention is applied to the technical filed of optical communication, and provides a pluggable type adapter assembly for coupling of a collimating optical path. The pluggable type adapter assembly comprises an adapter 501, a lens assembly 502 and a protective sleeve 503. The lens assembly 502 is disposed inside the pipe-type protective sleeve 503, and one end of the adapter 501 is respectively connected with the lens assembly 502 and the protective sleeve; the end, which is connected with the protective sleeve 503, of an adapter metal piece 104 is a force fit end, the for fit end of the adapter metal piece 104 is in the form of a cylinder, and the diameter of the cylinder matches the internal diameter of the protective sleeve 503 to enable the adapter metal piece 104 to be inserted into the pipe-type protective sleeve 503; a ceramic insertion core 102 and a fiber 103 extend to the outside of the adapter metal piece 104 in terms of length and are connected with the lens assembly 502 inside the protective sleeve 503; and the lens assembly 502 comprises a third collimating lens 701 and a lens sleeve 702 which have the same in axial direction. According to the invention, when the pluggable type adapter assembly is coupled to a device shell assembly, parallel coupling of collimating light is realized, the efficiency during the parallel coupling of the collimating light is high, the coupling difficulty is low, and the coupling tolerance is large.