CN209928073U - Optical fiber fixing device with continuously adjustable height angle - Google Patents
Optical fiber fixing device with continuously adjustable height angle Download PDFInfo
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- CN209928073U CN209928073U CN201920767360.2U CN201920767360U CN209928073U CN 209928073 U CN209928073 U CN 209928073U CN 201920767360 U CN201920767360 U CN 201920767360U CN 209928073 U CN209928073 U CN 209928073U
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Abstract
The utility model relates to an optical fiber fixing device with continuously adjustable height and angle, belonging to the technical field of semiconductor optical fiber lasers, comprising a base, wherein an optical fiber cushion block is arranged above the base, notches are arranged on the bases at two sides of the optical fiber cushion block, and the base is connected with a laser substrate; the top of the optical fiber cushion block is provided with an inclined slope surface, and the height of one end of the inclined slope surface is 1 mm higher than that of the opposite end. The light beam is emitted at a certain height after passing through the focusing coupling lens, and the position of the device is adjusted, so that the optical fiber can be fixed at a proper height and angle, and the damage and pollution of the end face of the optical fiber caused by the installation of the optical fiber ceramic sleeve and the metal sleeve can be reduced. The device is simple and easy to operate, and the height and the angle are continuously adjustable, so that the device has great practical value.
Description
Technical Field
The utility model relates to a height angle continuously adjustable's optic fibre fixing device belongs to semiconductor fiber laser technical field.
Background
At present, lasers are widely applied due to the advantages of small size, light weight and high efficiency, the development speed of laser technology is faster and faster, and the demand of high-power lasers is increasingly increased. The coupling optical fiber is fixed in the ceramic sleeve and the metal sleeve by optical fiber glue, and the metal sleeve is welded on the tube shell. However, in this manner, the ceramic ferrule and the metal ferrule are very easily mounted to damage or contaminate the fiber-optic endface, thereby increasing cost or the amount of fiber-optic endface cleaning.
In addition, the optical fiber is directly fixed on the strip-shaped cushion block, but the height or the angle of the optical fiber cannot be conveniently and quickly adjusted due to the height fixation of the cushion block, and the limitation of the fixing mode of directly fixing the optical fiber on the strip-shaped cushion block is large.
Disclosure of Invention
Not enough to prior art, the utility model provides a height angle continuously adjustable's optic fibre fixing device.
The technical scheme of the utility model as follows:
an optical fiber fixing device with continuously adjustable height and angle comprises a base, wherein an optical fiber cushion block is arranged above the base, an optical fiber is arranged above the optical fiber cushion block, notches are formed in the base on two sides of the optical fiber cushion block, screws penetrate through the notches, and the base is connected with a laser substrate through the screws; an inclined slope surface is arranged at the top of the optical fiber cushion block, and the height of one end of the inclined slope surface is 1 mm higher than that of the opposite end; the optical fiber protection device is characterized in that a bare optical fiber is arranged at one end of the optical fiber, the contact length between the optical fiber with the cladding and the optical fiber cushion block is at least two millimeters, and the optical fiber with the optical fiber cladding needs to be fixed on the optical fiber cushion block in a length of about 2 millimeters so as to protect the optical fiber.
The fiber is free of a ceramic ferrule and a metal pigtail. The device can find out the proper height and angle by moving or rotating the optical fiber cushion block, and fix the optical fiber, so that the light beam just hits on the end face of the optical fiber. The height of the optical fiber cushion block can be adjusted according to the approximate range of the height of the light beam of the light path, and meanwhile, the gradient of the optical fiber cushion block can be designed according to the actual light path.
Preferably, the base is rectangular, and the notches on the two sides of the optical fiber cushion block are linear notches or arc notches; the linear notches are symmetrically arranged along the center line of the base, and the width of the notch of each linear notch is larger than the diameter of each screw; the effect of continuously adjusting the pitching angle and the height can be achieved by rotating the optical fiber cushion block;
the arc-shaped notch is arranged along the midpoint of the base in a centrosymmetric manner. Under the condition that the centers of the notches are symmetrical, the optical fiber cushion blocks can be rotationally adjusted to change the vertical pitching angle of the optical fiber and the height of the end face of the optical fiber.
Preferably, the height of one end of the inclined slope surface is 3.5 mm, and the height of the opposite end is 4.5 mm. Spanning 1 mm, the height adjustment range of the fiber may be 3.5 mm to 4.5 mm, while the elevation adjustment range may also be substantially 5 ° up and 5 ° down. Whereas in practical fiber-optic coupling fixtures the elevation angle will generally not exceed this range with good height adjustment.
Preferably, a heat dissipation layer is arranged below the base, and the heat dissipation layer is an indium sheet. The base passes through the screw mounting on the laser instrument base plate, and for better heat dissipation, utilize good heat-conducting material such as indium piece to fill between optic fibre cushion and the laser instrument base plate to the heat dissipation.
The beneficial effects of the utility model reside in that:
the utility model provides an optic fibre fixing device with continuously adjustable height angle, the device can reduce ceramic bushing and metal caudal peduncle to the damage and the pollution of fiber end face in the optic fibre manufacture process greatly, saves the cost, and the fixed height of optic fibre and angle are continuous adjustable, and simple easy operation more has the universality. The optical fiber cushion block realizes the change of two dimensions of height and angle through self movement and rotation, and is suitable for small devices, especially for fixing optical fibers in the optical fiber coupling of a laser.
Drawings
FIG. 1 is a drawing of a fiber holding device with a linear slot.
FIG. 2 is a view of an optical fiber holding device with an arc-shaped notch.
In the figure: 1. the optical fiber module comprises a base, 2, a notch, 3, an optical fiber cushion block, 4, a bare optical fiber, 5, an optical fiber with a cladding, 6 and an optical fiber end face.
Detailed Description
The present invention will be further described, but not limited to, by the following examples in conjunction with the accompanying drawings.
Example 1:
an optical fiber fixing device with continuously adjustable height and angle comprises a base 1, wherein an optical fiber cushion block 3 is arranged above the base, an optical fiber is arranged above the optical fiber cushion block 3, notches 2 are formed in the base 1 on two sides of the optical fiber cushion block 3, screws penetrate through the notches 2, and the base 1 is connected with a laser substrate through the screws; the top of the optical fiber cushion block 3 is provided with an inclined slope surface, the height of one end of the inclined slope surface is 1 mm higher than that of the opposite end, the height of one end of the inclined slope surface is 3.5 mm, and the height of the opposite end is 4.5 mm. Spanning 1 mm, the height adjustment range of the fiber may be 3.5 mm to 4.5 mm, while the elevation adjustment range may also be substantially 5 ° up and 5 ° down. In the actual optical fiber coupling fixation, the depression elevation angle generally does not exceed the range on the premise of good height adjustment; the optical fiber protection device is characterized in that a bare optical fiber 4 is arranged at one end of the optical fiber, the contact length of an optical fiber 5 with a cladding and an optical fiber cushion block 3 is two millimeters, and the optical fiber with the optical fiber cladding is fixed on the optical fiber cushion block in a length of about 2 millimeters so as to protect the optical fiber.
The fiber is free of a ceramic ferrule and a metal pigtail. The device can find out proper height and angle by moving the position of the optical fiber cushion block, fix the optical fiber and enable the light beam to just hit the end face of the optical fiber. The height of the optical fiber cushion block can be adjusted according to the approximate range of the height of the light beam of the light path, and meanwhile, the gradient of the optical fiber cushion block can be designed according to the actual light path.
Example 2:
an optical fiber fixing device with a continuously adjustable height angle is structurally as described in embodiment 1, except that the base is rectangular, notches on two sides of the optical fiber cushion block are linear notches, as shown in fig. 1, the linear notches are symmetrically arranged along the center of the base in a central line manner, and the width of the notch of each linear notch is larger than the diameter of a screw; the fibre mat 3 can be rotated through a small angle to achieve continuous adjustment of pitch and thus in angle and height.
The optical fiber cushion block 3 is moved left and right, the height of the optical fiber can be changed to be suitable for the height of the light beam, and the light beam can be made to just hit the end face 6 of the optical fiber. The device is then fixed to the laser substrate by screws. If the height of the light beam after passing through the coupling lens is high, the optical fiber cushion block 3 can be slid to fix the bare fiber 4 at the high position of the optical fiber cushion block 3. If the light beam height is low after passing through the coupling lens, the optical fiber spacer block 3 can be slid to fix the bare fiber 4 at the lower position of the optical fiber spacer block 3. Thereby realizing continuous adjustment of the height of the optical fiber. Optic fibre also can realize the utility model discloses well bare fiber 4 snap-on has reduced the probability that fiber end face 6 was harmd and is polluted on optic fibre cushion 3. And fixing the bare optical fiber by using proper glue after the position of the optical fiber is adjusted.
Example 3:
the utility model provides an optical fiber fixing device of high angle continuously adjustable which structure is as in embodiment 1, the difference is, the notch of optical fiber cushion both sides is the arc notch, and the arc notch is central symmetry setting along the base mid point. Under the condition that the centers of the notches are symmetrical, the optical fiber cushion blocks can be rotationally adjusted to change the up-down pitching angle of the optical fiber.
As shown in figure 2, the device is a device with continuously adjustable height and angle, and the notch 2 of the device is a notch which is in central symmetry with the center of the base and can realize rotation by taking the center of a circle as the center. When the device is in the home position, the optical fiber is substantially horizontally fixed, and when the device is rotated in one of the left and right directions, the height of the end face 6 of the optical fiber is raised and the elevation angle becomes large. This applies to laser coupled beams where the beam is high and the beam is down. When the device is rotated in the other direction, the height of the fiber end face 6 is lowered and the angle of elevation of the fiber becomes smaller. This applies to the case where the laser coupled beam is low and there is an upward angle. The height and angle of the fiber end face 6 are changed simultaneously, and since this embodiment of the device has angular height adjustment uniqueness, the case of a single low elevation depression angle and high elevation angle can be changed by changing the height of the fiber mat 3.
The device can be used for conveniently adjusting the fixation of the coupling optical fiber of the whole light beam with the pitching non-horizontal light beam, and the focusing lens can be adjusted to perform fine adjustment after the optical fiber is fixed, so that a better coupling effect is achieved.
Example 4:
the structure of the optical fiber fixing device with the height and the angle continuously adjustable is as in embodiment 1, except that a heat dissipation layer is arranged below a base, and the heat dissipation layer is an indium sheet. The base passes through the screw mounting on the laser instrument base plate, and for better heat dissipation, utilize good heat-conducting material such as indium piece to fill between optic fibre cushion and the laser instrument base plate to the heat dissipation.
Claims (5)
1. An optical fiber fixing device with continuously adjustable height and angle is characterized by comprising a base, wherein an optical fiber cushion block is arranged above the base, an optical fiber is arranged above the optical fiber cushion block, notches are formed in the base on two sides of the optical fiber cushion block, screws penetrate through the notches, and the base is connected with a laser substrate through the screws; the top of the optical fiber cushion block is provided with an inclined slope surface, and the height of one end of the inclined slope surface is higher than that of the opposite end; and a bare optical fiber is arranged at one end of the optical fiber, and the contact length between the optical fiber with a cladding and the optical fiber cushion block is at least two millimeters.
2. The optical fiber fixing device with continuously adjustable height and angle as claimed in claim 1, wherein the base is rectangular, and the notches at both sides of the optical fiber cushion block are linear notches or arc notches; the linear notches are symmetrically arranged along the center line of the base, and the width of the notch of each linear notch is larger than the diameter of each screw;
the arc-shaped notch is arranged along the midpoint of the base in a centrosymmetric manner.
3. The apparatus of claim 1, wherein the inclined slope has a height at one end that is 1 mm higher than a height at an opposite end.
4. The apparatus of claim 3, wherein the inclined ramp has a height of 3.5 mm at one end and a height of 4.5 mm at an opposite end.
5. The optical fiber fixing device with continuously adjustable height and angle as claimed in claim 1, wherein a heat dissipation layer is arranged below the base, and the heat dissipation layer is an indium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920767360.2U CN209928073U (en) | 2019-05-27 | 2019-05-27 | Optical fiber fixing device with continuously adjustable height angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920767360.2U CN209928073U (en) | 2019-05-27 | 2019-05-27 | Optical fiber fixing device with continuously adjustable height angle |
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| Publication Number | Publication Date |
|---|---|
| CN209928073U true CN209928073U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920767360.2U Active CN209928073U (en) | 2019-05-27 | 2019-05-27 | Optical fiber fixing device with continuously adjustable height angle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366503A (en) * | 2020-11-09 | 2021-02-12 | 中国工程物理研究院激光聚变研究中心 | Super-continuum spectrum laser output device and system |
-
2019
- 2019-05-27 CN CN201920767360.2U patent/CN209928073U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112366503A (en) * | 2020-11-09 | 2021-02-12 | 中国工程物理研究院激光聚变研究中心 | Super-continuum spectrum laser output device and system |
| CN112366503B (en) * | 2020-11-09 | 2022-01-25 | 中国工程物理研究院激光聚变研究中心 | Super-continuum spectrum laser output device and system |
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