CN214336088U

CN214336088U - Michelson interferometer light source device convenient to adjust

Info

Publication number: CN214336088U
Application number: CN202120059205.2U
Authority: CN
Inventors: 陈健; 朱纯; 高辉; 朱云; 江正仙
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-10-01
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a Michelson interferometer light source device convenient to adjust, which comprises a helium-neon laser, wherein the helium-neon laser is an optical fiber output laser, the output end of the helium-neon laser is connected with an optical fiber, and the tail end of the optical fiber is provided with a laser emitting head; still include the link, the link includes connecting rod, pole setting sleeve pipe, pole setting, supporting platform, support. One end of the connecting rod is provided with a through hole and is fixed on the Michelson interferometer through a fastening screw, and the other end of the connecting rod is vertically connected with the vertical rod sleeve. The lower end of the vertical rod is inserted into the vertical rod sleeve and is fixed with the vertical rod sleeve through a locking bolt, and the upper end of the vertical rod is fixed with the center of the lower surface of the support platform. The support is fixed on the support platform, and the laser emitting head can be rotatably erected on the support. The utility model discloses make things convenient for the regulation of light source height, exit angle, facula position etc. is favorable to the follow-up adjustment of michelson interferometer.

Description

Michelson interferometer light source device convenient to adjust

Technical Field

The utility model belongs to the technical field of the optical experiment instrument, a light source device is related to, specifically is a convenient michelson interferometer light source device who adjusts.

Background

The Michelson interferometer is a commonly used optical experimental instrument in modern physics and metering technology, a helium-neon laser is commonly used in a laboratory as a light source of the Michelson interferometer, a laser beam is divided into two beams through a light splitting plate, the two beams vertically irradiate to a fixed reflector and a movable reflector on the Michelson interferometer respectively, and are reflected by mirror surfaces of the fixed reflector and the movable reflector and then are superposed to generate interference. In the experimental process, due to the lack of adjusting devices for the height, the emergent angle, the light spot position and the like of the light source, when the laser beam irradiates the light splitting plate, the fixed reflector and the movable reflector, the laser beam often deviates from the centers of the light splitting plate, the fixed reflector and the movable reflector easily, so that the interference pattern cannot be adjusted out or deviates from the center of a view field, and inconvenience is brought to the observation and measurement of experimental phenomena.

Disclosure of Invention

The utility model discloses a purpose is not enough to current michelson interferometer light source device's the aforesaid, provides a michelson interferometer light source device who conveniently adjusts.

In order to solve the technical problem, the utility model discloses a following technical scheme: a conveniently adjusted Michelson interferometer light source device comprises a He-Ne laser, wherein the He-Ne laser is an optical fiber output laser, the output end of the He-Ne laser is connected with an optical fiber, the tail end of the optical fiber is provided with a laser emitting head, and a self-collimating laser beam is emitted through the laser emitting head; the method is characterized in that:

the Michelson interferometer comprises a Michelson interferometer, a connecting frame and a connecting rod, wherein the connecting frame is used for being connected with the Michelson interferometer and comprises a connecting rod, an upright rod sleeve, an upright rod, a support platform and a support;

one end of the connecting rod is provided with a through hole and is matched with a fastening screw for being fixed with the Michelson interferometer, and the other end of the connecting rod is vertically connected with the vertical rod sleeve; the lower end of the upright rod is inserted into the upright rod sleeve and is fixed with the upright rod sleeve through a locking bolt, and the upper end of the upright rod is fixed with the center of the lower surface of the support platform; the support is fixed on the support platform, and the laser emitting head can be rotatably erected on the support.

For ease of assembly with a michelson interferometer, the link is "L" shaped.

During the experiment, will the utility model discloses a connecting rod one end is passed through fastening screw and is fixed on the surface of michelson interferometer, makes support platform be located the left side of michelson interferometer spectrometer, reciprocates the pole setting and adjusts support platform's height, rotates the orientation of pole setting adjustment support, rotates the first exit angle of adjusting the laser beam of laser outgoing, observes the facula position of the laser beam that shoots onto fixed speculum and movable reflector simultaneously, makes the laser beam that the laser outgoing sent shoot respectively to the dead center of fixed speculum and movable reflector behind the spectrometer. The utility model discloses make things convenient for the regulation of light source, be favorable to satisfying the michelson interferometer and produce the basic condition of interference style, establish the basis for the follow-up further fine-tuning of michelson interferometer, be favorable to improving experimental efficiency.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is the utility model discloses with michelson interferometer assembly drawing.

In the figure: 1. helium neon laser, 2 optical fiber, 3 laser emitting head, 4 support, 5 connecting rod, 6 vertical rod sleeve, 7 vertical rod, 8 support platform, 9 Michelson interferometer, 31 laser beam, 51 through hole, 52 fastening screw, 61 locking bolt, 91 light splitting plate, 92 fixed reflector and 93 movable reflector.

Detailed Description

Referring to fig. 1 and 2, a he-ne laser 1 is an optical fiber output laser, an output end of the he-ne laser 1 is connected with a laser emitting head 3 through an optical fiber 2, and a self-collimating laser beam 31 is emitted by the laser emitting head 3. The connecting frame comprises a connecting rod 5, a vertical rod sleeve 6, a vertical rod 7, a support platform 8 and a support 4.

The connecting rod 5 is L-shaped, one end of the connecting rod 5 is provided with a through hole 51 and a fastening screw 52, and the other end is vertically connected with the upright rod sleeve 6. The lower end of the vertical rod 7 is inserted into the vertical rod sleeve 6 and is fixed with the vertical rod sleeve 6 through a locking bolt 61, and the upper end of the vertical rod 7 is fixed with the center of the lower surface of the support platform 8. The laser emitting head 3 can be rotatably erected on the bracket 4, and the bracket 4 is fixed on the bracket platform 8.

Referring to fig. 3, one end of the connecting rod 5 is fixed on the surface of the left front part of the michelson interferometer 9 by a fastening screw 52, and the support platform 8 is located on the left side 91 of the spectroscope on the michelson interferometer 9. The laser emitting head 3 emits a laser beam 31 to a beam splitter 91 disposed at an angle of 45 degrees, and the laser beam is split into two beams by the beam splitter 91 and emitted to a fixed mirror 92 and a movable mirror 93, respectively.

Claims

1. A conveniently adjusted Michelson interferometer light source device comprises a He-Ne laser, wherein the He-Ne laser is an optical fiber output laser, the output end of the He-Ne laser is connected with an optical fiber, and the tail end of the optical fiber is provided with a laser emitting head; the method is characterized in that: the connecting frame comprises a connecting rod, a vertical rod sleeve, a vertical rod, a support platform and a support; one end of the connecting rod is provided with a through hole, and the other end of the connecting rod is vertically connected with the upright rod sleeve; the lower end of the upright rod is inserted into the upright rod sleeve and is fixed with the upright rod sleeve through a locking bolt, and the upper end of the upright rod is fixed with the center of the lower surface of the support platform; the support is fixed on the support platform, and the laser emitting head can be rotatably erected on the support.

2. A conveniently tunable michelson interferometer light source apparatus according to claim 1, wherein: the connecting rod is L-shaped.