TWM497791U - Optical transceiver device without reflective surfaces - Google Patents

Description

Optical transceiver without reflection surface

The present invention relates to an optical transceiver, and more particularly to an optical transceiver that does not require a 45 degree reflective surface.

In the field of optical communication, optical transceiver modules are moving toward high bandwidth, low power consumption, and miniaturization. Among them, VCSEL (Vertical Cavity Surface Emitting Laser) has low cost and is suitable for formation. The characteristics of 1D or 2D arrays, therefore, the optical transceiver module with VCSEL laser array becomes one of the preferred schemes for extending the connection bandwidth. Please refer to the first figure for the current common, VCSEL laser. The optical transceiver module 1 of the array is provided with a plurality of VCSEL lasers 11 mounted on a flexible carrier 10, and the VCSEL laser 11 is provided with a plastic cap 12 on the side of the cover. There are a plurality of optical fiber interfaces 121 corresponding to the VCSELs 11 of the VCSEL. Therefore, please refer to the second figure, so that the optical fiber interface 121 can be connected to the optical fiber 2, and the light emission of the VCSEL laser 11 The angle is vertically upward, so the plastic cap 12 is provided with a 45-degree reflecting surface 13 at a position above the VCSEL laser 11, which can reflect the optical signal of the VCSEL laser 11 and align with the optical fiber 2 to achieve optical path coupling, such as As shown in the second figure, each of the optical fiber interfaces 121 A plurality of lenses 14 corresponding to the VCSEL lasers 11 are respectively disposed between the 45-degree reflecting surfaces 13 for adjusting the optical path coupling effect. In addition, the optical transceiver module 1 is usually soldered when actually used. On a circuit board 15.

Referring to the first and second figures, the optical transceiver module 1 with a VCSEL laser array can be used to receive the illuminating signal, but because of the use of the flexible carrier 10 and the plastic cap 12, The airtight state cannot be achieved between the two, resulting in poor weather resistance of the internal components, such as moisture and dust resistance, which limits the application range of the product. In addition, the 45 degree reflective surface 13 must be provided, resulting in an increase in the manufacturing process and labor costs of the product. Therefore, how to improve the above-mentioned deficiencies, that is, the technical difficulties that the applicant of this case wants to solve.

In view of the existing optical transceiver module using VCSEL laser array, it has no airtight effect and needs to be provided with a 45-degree reflective surface, resulting in poor weather resistance performance, increased manufacturing process and labor cost, etc. Therefore, the purpose of this creation is to develop An optical transceiver having a sealing effect and eliminating the need to provide a 45 degree reflecting surface.

In order to achieve the above objective, the present invention provides a non-reflective surface optical transceiver device, comprising: an optical module, the optical module is provided with a metal base, and the metal base is provided with a plurality of optical transceiver components, and The optical module is provided with a metal cap, the metal cap is covered with the optical transceiver component, and the metal cap is coupled to the metal base. The upper surface of the metal cap is respectively provided with a plurality of optical transceivers. a fiber optic interface corresponding to the component; a flexible circuit board, the one end of the flexible circuit board is connected to the optical module; a circuit board, the optical module and the flexible circuit board are disposed on the circuit board, and the flexible circuit The other side of the board is connected to the circuit board, and the optical module is configured to bend the flexible circuit board so that the metal base is vertically disposed on the circuit board, and the optical transceiver components and the optical fibers are The interface is arranged in parallel with the board.

With the above structure, the present invention can directly convert the light emission angle or the light receiving angle of the optical transceiver component into a horizontal level, so that it is not necessary to provide a 45-degree reflection surface, and at the same time, good gas can be achieved. The dense effect can improve the weather resistance of the product, so that the creation can improve the application range of the product and reduce the manufacturing process and labor cost.

[Use]

1‧‧‧Optical transceiver module

10‧‧‧Soft carrier board

11‧‧‧VCSEL laser

12‧‧‧ plastic cap

121‧‧‧Fiber interface

13‧‧45 degree reflecting surface

14‧‧‧ lens

15‧‧‧Circuit board

2‧‧‧Fiber

[this creation]

3‧‧‧Light Module

31‧‧‧Metal base

32‧‧‧Metal cap

321‧‧‧Fiber interface

33‧‧‧Optical transceiver components

34‧‧‧Plastic closure

341‧‧‧ lens

4‧‧‧Soft circuit board

5‧‧‧Circuit board

6‧‧‧Fiber

The first figure is a front view of a conventional optical transceiver module.

The second figure is a side view of a conventional optical transceiver module disposed on a circuit board.

The third picture is a three-dimensional diagram of the creation.

The fourth picture is a schematic diagram of the structure of the optical module of the present creation.

The fifth picture is a schematic diagram of the combination of the creation and the fiber connection.

As shown in the third figure, the present invention provides a non-reflective surface optical transceiver device, comprising: a light module 3, the light module 3 is provided with a metal base 31, please refer to the fourth figure The metal base 31 is provided with a plurality of optical transceiver components 33. The optical transceiver components 33 can be VCSEL lasers or photodetectors (Photo Detectors, such as photodiodes) or combinations thereof. The VCSEL laser array and/or the photodetector array are generally four or twelve. The optical transceivers 33 are covered with a plastic cover 34. The plastic cover 34 is provided. The lens 341 corresponding to each of the optical transceiver components 33 can be further disposed to adjust the optical path coupling effect of the optical transceiver component 33. The optical module 3 is provided with a metal cap 32. The metal cap is provided. 32, the plastic cover 34 and the optical transceiver components 33 are disposed, that is, the plastic cover 34 is located between the metal cap 32 and each of the optical transceiver components 33, and the metal cap 32 and the metal base 31 are further Both can be connected by sealing or welding For the specific process, the conventional coaxial package (TO CAN, Transmitter Outline CAN) technology can be referred to, and the details are not described herein. In addition, the upper surface of the metal cap 32 is respectively provided with a plurality of optical transceiving elements 33. Corresponding fiber interface 321 , by which, in conjunction with referring to FIG. 5 , the fiber interface 321 can be connected to the fiber 6 , and the fiber 6 can be more specifically a multimode fiber; a flexible circuit board ( a flexible printed circuit (FPC) 4, the flexible circuit board 4 is connected to the optical module 3, and the flexible circuit board 4 is electrically connected to the optical transceiver components 33 of the optical module 3; 5, the optical module 3 and the flexible circuit board 4 are disposed on the circuit board 5, and the other side of the flexible circuit board 4 is connected to the circuit board 5, and the optical module 3 is transmitted through the flexible circuit The plate 4 is bent, so that the metal base 31 can be vertically disposed on the circuit board 3, and the optical transceiver components 33 and the optical fiber interfaces 321 and the circuit board 5 are arranged in parallel; please refer to As shown in FIG. 3 and FIG. 4 , the present invention is provided between the optical module 3 and the circuit board 5 . The flexible circuit board 4 can be placed on the circuit board 5 by bending the flexible circuit board 4, and the light emission angle or receiving angle of the optical transceiver component 33 can be directly converted from vertical to horizontal. Therefore, it is not necessary to provide a 45-degree reflecting surface 13 as in the conventional use, and at the same time, by using the rigid metal base 31 and the metal cap 32 by the optical module 3, a good airtight effect can be achieved, and the product can be improved. Weather resistance, which in turn enables the creation of products to improve the application range and reduce the manufacturing process and labor costs.

3‧‧‧Light Module

31‧‧‧Metal base

32‧‧‧Metal cap

321‧‧‧Fiber interface

33‧‧‧Optical transceiver components

34‧‧‧Plastic closure

341‧‧‧ lens

4‧‧‧Soft circuit board

5‧‧‧Circuit board

Claims (5)

A non-reflective surface optical transceiver device includes: an optical module, the optical module is provided with a metal base, the metal base is provided with a plurality of optical transceiver components, and the optical module is provided with a metal cap The metal cap covers the optical transceiver component, and the metal cap is coupled to the metal base. The upper surface of the metal cap is respectively provided with a plurality of optical fiber interfaces corresponding to the optical transceiver components; a flexible circuit a circuit board, the flexible circuit board is connected to the optical module, and the flexible circuit board is electrically connected to each optical transceiver component of the optical module; a circuit board, the optical module and the flexible circuit board are disposed on The circuit board is connected to the circuit board at the other side of the flexible circuit board, and the optical module is vertically disposed on the circuit board by bending the flexible circuit board. The optical transceiver components and the optical fiber interfaces are arranged in parallel with the circuit board. The non-reflective surface optical transceiver device of claim 1, wherein the optical module is provided with a plastic cover, the plastic cover covers the optical transceiver components, and the plastic cover is located at the metal cap Between the cover and each of the optical transceiver components. The non-reflective surface optical transceiver of claim 2, wherein the plastic cover is provided with a plurality of lenses respectively corresponding to the optical transceiver elements. The non-reflective surface optical transceiver of claim 1, wherein the optical fiber interface is connected to a multimode optical fiber. The non-reflective surface optical transceiver of claim 1, wherein the optical transceiver components are VCSEL lasers or photodetectors or a combination thereof.