CN213714689U - Integrated polarization extinction ratio detection device - Google Patents

Abstract

The utility model provides an integration polarization extinction ratio detection device relates to optical communication technical field. Design integration polarization extinction ratio detection device, cavity formula motor can be with lens, optical detector built-in the motor stator, has shortened the distance that is surveyed to the light detection face, and the motor design of integration makes the device volume littleer. The utility model discloses a improve its device, reduce the optical distance that is surveyed the light, reduce the device volume, improve polarization extinction ratio measurement accuracy.

Description

Integrated polarization extinction ratio detection device

Technical Field

The utility model relates to an optical communication field particularly, relates to integration polarization extinction ratio detection device.

Background

Introduction to

The polarization extinction ratio test structure has a structural design with a longer optical path, the polaroid, the lens and the motor are all independent structures, the distance from the measured light to the light detection surface is longer, the device is large in size, and the requirement of multi-channel integrated measurement cannot be well met; the large optical path is not favorable for accurate measurement of the polarization extinction ratio.

In view of the above, the inventors of the present application invented an integrated polarization extinction ratio detection apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integration polarization extinction ratio detection device aims at improving device volume and measurement accuracy.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the motor comprises a motor, a polaroid, a lens, a light detector, a stator and a rotor, and is characterized in that the lens and the light detector are arranged in the motor, and the polaroid is driven by the rotor to rotate.

Further, the lens is located between the polarizer and the photodetector.

Further, the polaroid, the lens and the light detector are arranged in the motor close to one side of the motor.

Further, the rotor is connected with the limit switch.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the lens and the optical detector are arranged in the motor stator, so that the size of the device is reduced, the optical path of the measured light is shortened, and the test precision is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic diagram of the operation between the polarizer, the lens and the optical detector of the present invention.

Description of the main elements

1. A motor; 2. a polarizing plate; 3. a lens; 4. a light detector; 5. a limit switch; 6. a stator; 7. And a rotor.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

The motor 1, the polaroid 2, the lens 3, the optical detector 4, the stator 6 and the rotor 7 are included, and the motor is characterized in that the lens 3 and the optical detector 4 are installed in the motor 1, the polaroid 2 is driven by the rotor 7 to rotate, the lens 3 is located between the polaroid 2 and the optical detector 4, the polaroid 2, the lens 3 and the optical detector 4 are arranged in the motor 1 and close to one side of the motor, and the rotor 7 is connected with the limit switch 5.

As shown in fig. 2, the polarizer 2 is driven by the rotor 7 of the motor 1 to rotate, the measured light reaches the surface of the lens 3 through the rotating polarizer 2, and then reaches the light detector 4 through the lens 3, so as to complete the detection of light, which is only a preferred embodiment of the present invention, and is not used to limit the present invention, and to those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The integrated polarization extinction ratio detection device comprises a motor (1), a polarizing plate (2), a lens (3), an optical detector (4), a stator (6) and a rotor (7), and is characterized in that the lens (3) and the optical detector (4) are installed in the motor (1), and the polarizing plate (2) is driven by the rotor (7) to rotate.

2. The integrated polarization extinction ratio detection device according to claim 1, wherein the lens (3) is located between the polarizer (2) and the photodetector (4).

3. The integrated polarization extinction ratio detection device according to claim 1, wherein the polarizer (2), the lens (3) and the photodetector (4) are disposed within the motor (1) near one side thereof.

4. The integrated polarization extinction ratio detection device according to claim 1, wherein the rotor (7) is connected to a limit switch (5).

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