Small optical device

An optical device, a small technology, applied in the field of optical devices, can solve the problems of inability to emit light beams, unfavorable network technology development, large volume, etc., and achieve the effect of being conducive to miniaturization, wide application scenarios, and compact size

Pending Publication Date: 2020-07-03
广东三石园科技有限公司
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Problems solved by technology

Because this optical device needs to be equipped with two beam splitters, the device is bulky and the production cost of optical equipment is high, which is not conducive to the development of network technology
[0005] For this reason, the Chinese invention patent application with the publication number CN108089352A discloses an optoelectronic device, which is provided with three optical fibers in the fiber head, and a beam splitting crystal, a half-wave plate, and a focusing optical rotation assembly are arranged on one side of the fiber head As well as multiple devices such as angle wedges, the focusing and optical rotation components of this device include Faraday rotators and other de

Method used

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  • Small optical device
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Examples

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no. 1 example

[0041] see figure 1 , The small optical device of this embodiment has an optical fiber head 11, a collimating lens 12, a beam splitter 13, an angle wedge 15, and a photoelectric converter 17. In this embodiment, the fiber optic head 11 and the collimating lens 12 constitute a collimator, and three optical fibers are arranged in the fiber optic head 11, which are respectively the optical fiber 21, the optical fiber 22 and the optical fiber 23, so the optical fiber head 11 adopts an optical fiber array. Preferably, the externally transmitted optical signal is incident into the small optical device through the optical fiber 21 and can exit from the optical fiber 22 and the optical fiber 23 . Moreover, the optical fiber 21 , the optical fiber 22 and the optical fiber 23 all extend outward from the first end of the optical fiber head 11 , and the collimating lens 12 is arranged opposite to the optical fiber head 11 , and the collimating lens 12 may be a self-focusing lens.

[0042...

no. 2 example

[0058] see Figure 4 , the small optical device of this embodiment includes a fiber head 31 , a collimator lens 32 , a beam splitter 33 and a mirror 35 . There are three optical fibers inside the optical fiber head 31 , which are optical fiber 41 , optical fiber 42 and optical fiber 43 , so the optical fiber head 31 of this embodiment uses an optical fiber array. The optical fiber 41 , the optical fiber 42 and the optical fiber 43 all extend outward from the first end of the optical fiber head 31 , and the collimating lens 32 is arranged opposite to the optical fiber head 31 , and the two form a collimator. Preferably, both end surfaces of the collimator lens 32 are coated with an anti-reflection film.

[0059] The beam splitter 33 is arranged on the side of the collimator lens 32 away from the fiber head 31 , and the beam splitter 33 is arranged on the optical path of the three optical fibers 41 , 42 , 43 . The end surface of the beam splitter 33 away from the fiber head 31...

no. 3 example

[0069] see Figure 7 , the small optical device of this embodiment has a first optical fiber head 51 , a first collimating lens 52 , a beam splitter 54 , a second collimating lens 56 , a second optical fiber head 57 and an optical fiber connecting head 58 . Wherein, three optical fibers are arranged in the first optical fiber head 51 , namely optical fiber 61 , optical fiber 62 and optical fiber 63 , therefore, the first optical fiber head 51 is an optical fiber array. The light beam input from the outside can be incident into the small optical device through the optical fiber 61 , or can be incident through the optical fiber 62 or the optical fiber 63 . In this embodiment, the optical fiber 61 , the optical fiber 62 and the optical fiber 63 all extend outward from the first end of the first optical fiber head 51 .

[0070] The first collimator lens 52 is arranged opposite to the first fiber optic head 51, the first collimator lens 52 and the first fiber optic head 51 constit...

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PUM

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Abstract

The invention provides a small optical device, which comprises an optical fiber head, wherein at least three optical fibers are arranged in the optical fiber head, and the plurality of optical fibersextend out of the first end of the optical fiber head; the second end of the optical fiber head is provided with a collimating lens, the end, which is away from the optical fiber head, of the collimating lens is provided with a first reflection transmission film, and the side, which is away from the collimating lens, of the first reflection transmission film is provided with a reflection device. According to the invention, the miniaturization of the optical device can be realized, and the small optical device can realize functions of optical isolation, light splitting and the like, can be usedfor wavelength monitoring and optical power monitoring of light beams at the same time, and can also be used for light splitting of light beams with different wavelengths.

Description

technical field [0001] The invention relates to an optical device, in particular to a small optical device with small volume and light splitting function. Background technique [0002] With the development of network communication, the data transmission speed of the optical fiber network is getting faster and faster, and the requirement for the capacity of the optical fiber network is also getting higher and higher. The existing optical fiber network transmission system uses a large number of various optical devices, such as isolators, beam splitters, depolarizers, etc. With the development of technology, various devices need to be used comprehensively to achieve the required functions. Therefore, the existing Fiber optic networks make extensive use of various optical hybrid devices. [0003] Existing optical hybrid devices are mainly devices with optical fibers at both ends. This is the most common optical device. The total length of this optical hybrid device exceeds 25 m...

Claims

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Application Information

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IPC IPC(8): G02B6/32G02B6/42
CPCG02B6/32G02B6/4214
Inventor 罗远智邱炳龙陈向阳
Owner 广东三石园科技有限公司
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