JP3096714U - Duplex transmission / reception module for optical signals - Google Patents

Abstract

(57) [Problem] To provide a duplex transmission / reception module of an optical signal capable of reducing production cost and obtaining accurate and efficient optical coupling. The light emitting module includes a main body, a light emitting module, a light receiving module, and an optical fiber connector disposed inside the main body. The light emitting module includes a metal support seat having a connection pin, and the metal support. Supported by the seat,
A laser diode grain having one electrode electrically connected to the metal support seat, a lead electrically connecting the other electrode of the laser diode grain to the connection pin, and a cover provided to cover the metal support seat. A metal housing is provided, and on the metal housing and at a position in front of the light emitting surface of the laser diode, an inclined surface is formed at one end in a cylindrical shape, and a spectral medium is vapor-deposited on the inclined surface. Focus means is provided.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to an optical signal transmitting / receiving module, and more particularly, to limiting an angle of an optical lens. It is possible to adjust the focus position for transmitting and receiving light without receiving control. The present invention relates to a duplex transmission / reception module for optical signals.

[0002]

[Prior art]

  Laser fiber particles (chips) have already been used in optical fiber communication systems. A unit that uses a light source or an optical sensor as the light detection means is applied. . As disclosed in FIG. 1A, a laser diode grain emits light by surface mounting. In addition to the module (1), the optical sensor is a surface-mounted light receiving module. (2) Conventional light emitting module (1) or light receiving module (2 ) Is a laser diode particle (4) (or an optical sensor) by means of a metal support seat (3). ), And one electrode of the laser diode grain (4) is electrically connected, Further, the leads (5) are electrically connected to the connection pins (6) of the metal supporting seat (3). Well In addition, the metal housing (7) is connected to the metal support seat (3) to cover the upper surface, On the upper surface of the metal housing (7), in front of the light emitting surface of the laser diode grain (4) A spherical focusing means (8) is provided at the position of, and through the focusing means (8) The light beam emitted by the laser diode particles (4) is emitted to the outside.

[0003]   In addition, as disclosed in FIGS. 1B and 1C, the light emitting module (1) and the light receiving module. The module (2) and the module (9) are fixed on the main body (9), and a duplex type transmission / reception module for optical signals is attached. Complete the surface mount of the module.

[0004]   The body (9) is provided with an optical lens (10) inside. Optical lens (10) is above A medium having different transmittance is deposited on the lower surface. Therefore, laser diode The light rays emitted by the particles are refracted and coupled by the optical lens (10) to form an optical fiber. The light rays reaching the optical fiber (11) and received by the optical fiber (11) are The light is totally reflected by the lens (10) and reaches the optical sensor of the light receiving module (2).

[0005]   The optical lens (10) is fixed on the supporting leg (13) of the supporting member (12), and After the joining of the two is completed, the support member (12) is inserted into the main body (9) and The optical lens (10) is adjusted to the optimum angle, and light is reflected or refracted. To do so. That is, after inserting the support member (12) into the main body (9), the optical lens ( 10) must be adjusted to the optimum angle, which is extremely inconvenient when actually used. Is.

[0006]

[Problems to be solved by the device]

  This device is easy to assemble, reduces production cost and is accurate and efficient. Providing a duplex type transceiver module for optical signals that provides good optical coupling The task is to serve.

[0007]

[Means for Solving the Problems]

Therefore, the present inventor has conducted extensive studies in view of the drawbacks found in the conventional technology, A main body, a light receiving module disposed inside the main body, an optical fiber connector, A light emitting module and a focusing means provided in the light emitting module. According to the present invention, the structure of an optical signal duplex type transceiver module consists of Focusing on the point that the problem can be solved, the present invention has been completed based on such knowledge.

[0008] That is, the light emitting module includes a metal support seat having the connection pin and a metal support seat. A laser diode supported by the base and one electrode electrically connected to the metal support base. To electrically connect the connection pin with the other electrode of the laser diode grain. Consists of a lead and a metal housing provided so as to cover the metal support seat. And on the metal housing and in front of the light emitting surface of the laser diode. Is provided at the position of, and a slanted surface is formed at one end with a cylindrical shape, and And a focusing means formed by depositing a spectral medium, and illuminating the light emitting module. The emitted light beam is focused through the focusing means and coupled to the optical fiber. The beam received by the optical fiber is totally reflected by the focusing means. It should be configured so that the light is received, focused, and coupled to the light receiving module. And the optical signal duplex transmission / reception module that solves the problem of this invention. Is obtained.

[0009]   The present invention will be specifically described below. An optical signal duplex transmission / reception module according to claim 1, A light receiving module and an optical fiber connector arranged inside the main body, A metal support seat having a connection pin and one electrode supported by the metal support seat A laser diode grain electrically connected to the metal support seat, and a laser diode grain of the laser diode grain. Cover the metal support seat and the lead that electrically connects the other electrode and the connection pin. A light emitting module consisting of a metal housing provided in   Provided on the metal housing and in front of the light emitting surface of the laser diode The columnar shape has an inclined surface at one end, and the spectroscopic medium is vaporized on the inclined surface. It has a focus means that is worn,   The light beam emitted by the light beam emitting module is focused by the focusing means. And couples the light beam received by the optical fiber to the optical fiber. The light is totally reflected by the focusing means and focused, and then coupled to the light receiving module. Configured to run.

[0010] An optical signal duplex transmitting / receiving module according to claim 2 is the same as in claim 1. The focusing means in the above is made of an optical material having a high refractive index.

[0011]

[Embodiment of device]

  This invention relates to the transmission and reception of light without the restriction and control of the angle of the optical lens. A duplex type transmission / reception module for optical signals whose focus position can be adjusted. And a fiber optic connector, and The light receiving module provided, the light beam emitting module, and the light beam emitting module It is composed of a cylindrical focusing means provided in the metal housing.   The structure and characteristics of such a duplex signal transmission / reception module for optical signals will be described in detail. For this purpose, specific examples will be given and described in detail below with reference to the drawings.

[0012]

【Example】

  As disclosed in FIGS. 2 and 3, an optical signal duplex transmission / reception module of the present invention is disclosed. The tool (20) includes a main body (21) and a light receiving module arranged inside the main body (21). Module (23), light emitting module (30), and optical fiber connector (22) is provided. The optical fiber connector (22) is made of ceramic material, The optical fiber (24) is installed on the concentric axis, and the light emitting module (30) emits light. The light beam to be coupled is coupled to the optical fiber (24). Also, the optical signal received Coupling to the optical sensor of the light receiving module (23) via the optical fiber (24). To go.

[0013]   FIG. 4 discloses a cross-sectional view thereof as an example of the light emitting module (30). light The line emitting module (30) is provided with a metal support seat (31) for laser diode particles ( 32) and electrically contact one electrode of the laser diode grain (32). And the connection pin (34) of the metal support seat (31) via the lead (33). ) And the other electrode of the laser diode. It In addition, the metal support seat (31) is covered and coupled with the metal housing (35).

[0014]   A mounting hole (36) is formed in the metal housing (35) and has a high refractive index. A cylindrical focus means (37) made of an optical material is attached to the mounting hole (36). ). The light emitted by the light emitting module (30) is emitted from the focus hand. Focus the beam at a certain distance from the front end of the step (37) and form a beam so that it becomes a beam. And is coupled to the core of the optical fiber (24).

[0015]   An inclined surface (38) is formed at one end of the focusing means (37), and the inclined surface (38) is formed. ) Is vapor-deposited with the spectral medium (39) and is irradiated by the light emitting module (30). After the light is focused, try to focus it at a distant location. Ray received Is totally reflected on the inclined surface (38) because the spectral medium (39) has different transmittance. Occurs and concentrates at a distant position.

[0016]   As disclosed in FIGS. 3 and 5, the rays emitted from the ray emitting module are Focused by the focusing means (37) and coupled to the optical fiber (24). And the received light of the optical fiber (24) is totally reflected by the spectroscopic medium (39). The light is focused and focused on the light sensor of the light receiving module (23). To run.

[0017]   That is, the light emitting module (30) according to the present invention comprises a focusing means (37). ) Is provided in front of the light emitting surface of the laser diode grain (32), and the light emitting module ( The light beam emitted by (30) is focused through the focusing means (37), Coupling to the core of the fiber (24). Also, focusing means (37) A spectroscopic medium (39) is vapor-deposited on the inclined surface of. Therefore, the light beam received by the optical fiber Is totally reflected and focused by the spectral medium (39), and the light receiving module (2 Coupling to the optical sensor of 3). In other words, the furka in this device The means (37) are inexpensive to manufacture, easy to install, accurate and efficient light. It provides the coupling.

[0018]   The above is a preferred embodiment of the present invention, which limits the scope of implementation of the present invention. Not a thing. Therefore, it is a modification or change that can be Anything done in the spirit of the idea and having an equal effect on this device All of them belong to the scope of claims for utility model registration of this invention.

[0019]

[Effect of device]

The optical signal duplex transceiver module according to the present invention is accurate and efficient. Not only a good optical coupling can be obtained, it is easy to assemble in the manufacturing process, It has the effect of reducing production costs.

[Brief description of drawings]

FIG. 1A is a cross-sectional view of a conventional light emitting module.

FIG. 1B is an explanatory diagram showing attachment of an optical lens in a conventional optical signal receiving module.

FIG. 1C is a cross-sectional view of a conventional optical signal transmitting / receiving module.

FIG. 2 is a perspective view of an optical signal transmitting / receiving module according to the present invention.

3 is a cross-sectional view of the optical signal transmitting / receiving module disclosed in FIG.

FIG. 4 is a cross-sectional view of a light emitting module in the optical signal transmitting / receiving module disclosed in FIG.

FIG. 5 is an explanatory view showing a focus state in the optical signal transmitting / receiving module according to the present invention.

[Explanation of symbols]

1 Ray emission module 10 Optical lens 11 optical fiber 12 Support member 13 Support legs 2 Light receiving module 20 duplex type transceiver module 21 body 22 Optical fiber connector 23 Light receiving module 24 optical fiber 3 Metal support seat 30 ray emitting module 31 Metal support seat 32 laser diode grains 33 Lead 34 Connection pin 35 metal housing 36 mounting holes 37 Focusing means 38 Inclined surface 39 Spectral media 4 Laser diode grains 5 leads 6 connection pins 7 Metal housing 8 Focusing means 9 body

Claims (2)

[Scope of utility model registration request] 1. A main body, a light receiving module and an optical fiber connector arranged inside the main body, a metal support seat provided inside the main body and having a connection pin, and supported by the metal support seat, and A laser diode grain in which one electrode is electrically connected to the metal support seat, and a lead that electrically connects the other electrode of the laser diode grain and the connection pin,
A light emitting module including a metal housing provided so as to cover the metal support seat, and a light emitting module provided on the metal housing and in front of a light emitting surface of the laser diode, and has a cylindrical shape and an inclined surface at one end. And a focusing means formed by vapor-depositing a spectral medium on the inclined surface. The light beam emitted from the light beam emitting module is focused through the focusing means and coupled to an optical fiber. A duplex transmission / reception module for optical signals, characterized in that a light beam received by a fiber is totally reflected by the focusing means to be focused and coupled to the light receiving module. 2. The duplex signal transmitting / receiving module according to claim 1, wherein the focusing unit is made of an optical material having a high refractive index.