CN220568963U - Efficient optical fiber space optical path coupling device - Google Patents
Efficient optical fiber space optical path coupling device Download PDFInfo
- Publication number
- CN220568963U CN220568963U CN202322283676.3U CN202322283676U CN220568963U CN 220568963 U CN220568963 U CN 220568963U CN 202322283676 U CN202322283676 U CN 202322283676U CN 220568963 U CN220568963 U CN 220568963U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- coupling
- light
- collimating
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 153
- 230000008878 coupling Effects 0.000 title claims abstract description 121
- 238000010168 coupling process Methods 0.000 title claims abstract description 121
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 121
- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 claims description 32
- 238000012360 testing method Methods 0.000 claims description 13
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012984 biological imaging Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a high-efficiency optical fiber space optical path coupling device, which relates to the field of optical fiber lasers and comprises a base, wherein the left side and the right side of the top of the base are symmetrically and rotatably connected with adjusting devices, optical fiber coupling collimators are symmetrically and fixedly connected in inner cavities of the two adjusting devices, each optical fiber coupling collimator comprises a collimating head clamp and a signal optical fiber collimating head, the signal optical fiber collimating heads are connected with optical fibers, the signal optical fiber collimating heads are arranged in the center of the collimating head clamp and are connected with the signal optical fibers, and the coupling adjusting light-passing optical fiber collimating heads are arranged around the signal optical fiber collimating heads and are connected with the coupling adjusting light-passing optical fibers. The high-efficiency optical fiber space optical path coupling device ensures that optical fiber and space optical path coupling can be adjusted to an optimal state under the condition that any condition in a cavity of a short-cavity laser is not damaged.
Description
Technical Field
The utility model relates to the field of fiber lasers, in particular to a high-efficiency fiber space optical path coupling device.
Background
The optical fiber has become the indispensable guided wave mode of light transmission, the compact laser composed of gain optical fiber and space optical element is widely used, such as the high-repetition frequency femtosecond pulse laser constructed by short cavity has important application in the aspects of light frequency measurement, high-speed light sampling, laser ranging, optical communication and nonlinear biological imaging, etc., for the short cavity structure laser combining optical fiber and space optical path, the space optical path adopts micro optical element to shorten the cavity length, while the optical fiber part shortens the cavity length by shortening the optical fiber length, in order to ensure the gain of the laser, the most effective method for shortening the optical fiber length in the cavity is to remove all passive optical fibers in the cavity.
The optical fiber and the spatial light path are coupled through a collimator, the collimator outputs light in the optical fiber in a collimation way, and simultaneously the spatial collimated light beam is coupled into the optical fiber, the coupling adjustment of the collimator is an important link for building the optical fiber-spatial light path laser cavity, the coupling efficiency determines the size of the loss in the cavity, and the general coupling adjustment method is that one end of the collimator is connected with a test light source, the other end of the collimator is connected with a power meter, and the coupling efficiency is adjusted by adjusting the spatial position of the collimator.
For a laser with a short cavity structure, as all the optical fiber parts are gain optical fibers, noise signal light can be introduced when the test light source is connected, and the coupling cannot be detected and regulated; in addition, if a passive optical fiber port is added to devices such as wavelength division multiplexing integrated in a coupler to adjust coupling, the laser cavity is more complex and cavity loss is increased.
Therefore, it is necessary to provide an efficient optical fiber space optical path coupling device to solve the above-mentioned problems.
Disclosure of Invention
The utility model mainly aims to provide an efficient optical fiber space optical path coupling device which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an efficient optic fibre space light path coupling device, includes the base, the left and right sides symmetry rotation at base top is connected with adjusting device, two symmetrical fixedly connected with optic fibre coupling collimator in adjusting device's the inner chamber, two the optic fibre coupling collimator all includes collimation head anchor clamps, signal light optic fibre collimation head and coupling adjustment light-passing optical fibre collimation head, signal light optic fibre collimation head is connected with optic fibre, signal light optic fibre collimation head is installed at the central authorities of collimation head anchor clamps and is connected with signal light optic fibre, coupling adjustment light-passing optical fibre collimation head is installed around signal light optic fibre collimation head and is connected with coupling adjustment light-passing optic fibre.
Preferably, the signal light optical fiber collimation heads in the two groups of optical fiber coupling collimators are in one-to-one correspondence in space, the coupling adjustment light-passing optical fiber collimation heads in the optical fiber coupling collimators on the left side are connected with test light sources, the coupling adjustment light-passing optical fiber collimation heads in the optical fiber coupling collimators on the right side are connected with power meters, and each dimension of the adjusting device is distributed to the coupling adjustment light-passing optical fiber collimation heads.
Preferably, for each optical fiber coupling collimator, the coupling adjustment light-transmitting optical fiber collimator is at least two.
Preferably, the signal light optical fiber and the signal light optical fiber collimating head are internally transmitted with signal light, and the coupling adjustment light-passing optical fiber collimating head are internally transmitted with test light.
Preferably, the signal light optical fiber alignment head is arranged in the center of the alignment head clamp, and the coupling adjustment light-transmitting optical fiber alignment head is arranged around the signal light optical fiber alignment head.
Advantageous effects
Compared with the prior art, the utility model has the following beneficial effects:
1. the efficient optical fiber space optical path coupling device can be used for constructing a novel coupling device by adding an additional coupling adjustment light-passing optical fiber collimating head near a signal light optical fiber collimating head for transmitting signal light for optical fiber space optical coupling adjustment, and the optical fiber-space optical coupling efficiency of the transmitted signal light can be adjusted to be the highest by adopting an auxiliary coupling adjustment light-passing optical fiber collimating head.
Drawings
FIG. 1 is a schematic view of the front face of the present utility model;
FIG. 2 is a schematic diagram of the structure of a fiber coupled collimator of the present utility model;
FIG. 3 is a schematic diagram of a coupled debug system of the present utility model;
fig. 4 is a schematic diagram of the structure of a short cavity laser based on the device in the present utility model.
In the figure: 1. an adjusting device; 2. a base; 3. an optical fiber coupling collimator; 4. a collimator head fixture; 5. a signal light optical fiber collimation head; 6. coupling and adjusting the light-transmitting optical fiber collimating head; 7. a signal light optical fiber; 8. coupling and adjusting the light-transmitting optical fiber; 9. a spatial light path; 10. testing a light source; 11. a power meter; 12. an optical fiber space optical path system; 13. an optical fiber.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in figure 1, a high-efficiency optical fiber space optical path coupling device comprises a base 2, wherein the left side and the right side of the top of the base 2 are symmetrically and rotatably connected with an adjusting device 1, optical fiber coupling collimators 3 are symmetrically and fixedly connected in the inner cavities of the two adjusting devices 1, the two optical fiber coupling collimators 3 respectively comprise a collimating head clamp 4, a signal optical fiber collimating head 5 and a coupling adjusting light-passing optical fiber collimating head 6, the signal optical fiber collimating head 5 is connected with an optical fiber 13, the signal optical fiber collimating head 5 is arranged in the center of the collimating head clamp 4 and is connected with a signal optical fiber 7, the coupling adjusting light-passing optical fiber collimating head 6 is arranged around the signal optical fiber collimating head 5 and is connected with a coupling adjusting light-passing optical fiber 8, the signal optical fiber collimating heads 5 in the two groups of optical fiber coupling collimators 3 are in one-to-one spatial correspondence, the coupling adjusting light-passing optical fiber collimating heads 6 in the left side optical coupling collimator 3 are connected with a test light source 10, the coupling adjustment light-passing optical fiber collimating head 6 in the right optical fiber coupling collimator 3 is connected with a power meter 11, each dimension of the adjusting device 1 is distributed to the coupling adjustment light-passing optical fiber collimating heads 6, at least two coupling adjustment light-passing optical fiber collimating heads 6 are arranged in each optical fiber coupling collimator 3, signal light is transmitted in the signal light optical fiber 7 and the signal light optical fiber collimating heads 5, test light is transmitted in the coupling adjustment light-passing optical fiber 8 and the coupling adjustment light-passing optical fiber collimating heads 6, the signal light optical fiber collimating heads 5 are arranged in the center of the collimating head clamp 4, the coupling adjustment light-passing optical fiber collimating heads 6 are arranged around the signal light optical fiber collimating heads 5, the additional coupling adjustment light-passing optical fiber collimating heads 6 are added near the signal light optical fiber collimating heads 5 for optical fiber space optical coupling adjustment through which the signal light is transmitted, a novel coupling device can be constructed, the optical fiber-space coupling of the transmitted signal light can be adjusted by adopting the auxiliary coupling adjustment light-passing optical fiber collimating head 6, and the coupling efficiency is maximized.
First embodiment:
the pair of fiber coupling collimators 3 are respectively installed in the pair of adjusting devices 1, the signal light fiber collimation heads 5 in the fiber coupling collimators 3 are ensured to correspond to each other in space one by one, the coupling adjustment light-passing optical fibers 8 in one end of the fiber coupling collimators 3 are connected with the test light source 10, the coupling adjustment light-passing optical fibers 8 in the other end of the fiber coupling collimators 3 are connected with the power meter 11, each dimension of the adjusting device 1 is distributed to each coupling adjustment light-passing fiber collimation head 6, and each dimension of the adjusting device 1 is adjusted so that the coupling efficiency of the coupling adjustment light-passing fiber collimation heads 6 is the highest, and at the moment, the coupling efficiency of the signal light fiber collimation heads 5 is also the highest. The signal light and the test light for coupling adjustment are transmitted separately, the signal light is transmitted in a signal light optical fiber 7 and a signal light optical fiber collimating head 5, the test light for coupling adjustment is transmitted in a coupling adjustment light-passing optical fiber 8 and a coupling adjustment light-passing optical fiber collimating head 6, the signal light optical fiber collimating head 5 and the coupling adjustment light-passing optical fiber collimating head 6 are both arranged in the same collimating head clamp 4, the signal light optical fiber collimating head 5 is arranged in the center of the collimating head clamp 4, the coupling adjustment light-passing optical fiber collimating head 6 is arranged around the signal light optical fiber collimating head 5, and the number of the signal light optical fiber collimating heads can be 2 or more;
the device is applied to an ultra-short cavity fiber laser, two ends of a gain fiber are respectively connected with a pair of signal light fiber collimating heads 5, the signal light fiber collimating heads 5 are respectively arranged in a pair of adjusting devices 1 to form a complete short cavity laser, and the coupling efficiency of the signal light fiber collimating heads 5 in a laser cavity is highest by adjusting the fiber coupling adjusting devices 1, so that the normal operation of the short cavity laser is ensured.
It should be noted that, the present utility model is a high-efficiency optical fiber space optical path coupling device, when in use, a pair of optical fiber coupling collimators 3 are firstly installed in a pair of adjusting devices 1 respectively, one end of the optical fiber coupling collimators 3 is connected with a test light source 10 with the same wavelength of signal light, the other end of the optical fiber coupling collimators 3 is rotated, so that the signal light optical fiber collimation heads 5 in the two end of the optical fiber coupling collimators 3 and the coupling adjustment light-passing optical fiber collimation heads 6 are in one-to-one correspondence in space, then, the corresponding coupling adjustment light-passing optical fibers 8 in the other end of the optical fiber coupling collimators 3 are connected with power meters 11, each adjustment dimension of the adjusting devices 1 is distributed to each coupling adjustment light-passing optical fiber collimation head 6, a group of dimensions of the adjusting devices 1 are adjusted to make the corresponding coupling adjustment light-passing optical fibers 8 connected with the power meters 11 with the highest indication number, and the other group of dimensions are adjusted repeatedly, so that the coupling efficiency of the light-transmitting optical fiber collimating head is the highest, the coupling efficiency of the signal optical fiber collimating head 5 is the highest, the ultra-short cavity optical fiber laser shown in figure 4 can be constructed in advance before an optical fiber space optical path coupling adjusting system is built, two ends of one gain optical fiber 13 are respectively connected with a pair of signal optical fiber collimating heads 5, the gain optical fiber 13 serves as a signal optical fiber 7, the signal optical fiber collimating heads 5 are respectively arranged in a pair of adjusting devices 1 to form a complete short cavity laser, and at the moment, the coupling adjustment of the signal optical fiber collimating heads 5 in a laser cavity is finished through a novel optical fiber space optical path coupling device under the condition of not changing the structure and parameters of the laser cavity, so that the normal operation of the short cavity laser is ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an efficient optic fibre space light path coupling device, includes base (2), its characterized in that: the optical fiber collimator is characterized in that adjusting devices (1) are symmetrically connected to the left side and the right side of the top of the base (2) in a rotating mode, optical fiber coupling collimators (3) are symmetrically and fixedly connected to the inner cavities of the adjusting devices (1), the two optical fiber coupling collimators (3) comprise a collimating head clamp (4), a signal optical fiber collimating head (5) and a coupling adjusting light-passing optical fiber collimating head (6), the signal optical fiber collimating head (5) is connected with an optical fiber (13), the signal optical fiber collimating head (5) is installed in the center of the collimating head clamp (4) and connected with a signal optical fiber (7), and the coupling adjusting light-passing optical fiber collimating head (6) is installed around the signal optical fiber collimating head (5) and connected with the coupling adjusting light-passing optical fiber (8).
2. The efficient fiber space optical path coupling device of claim 1, wherein: the signal light optical fiber collimation heads (5) in the two groups of optical fiber coupling collimators (3) are in one-to-one correspondence in space, the coupling adjustment light-passing optical fiber collimation heads (6) in the optical fiber coupling collimators (3) on the left side are connected with test light sources (10), the coupling adjustment light-passing optical fiber collimation heads (6) in the optical fiber coupling collimators (3) on the right side are connected with power meters (11), and each dimension of the adjusting device (1) is distributed to the coupling adjustment light-passing optical fiber collimation heads (6).
3. The efficient fiber space optical path coupling device of claim 1, wherein: for each optical fiber coupling collimator (3), at least two optical fiber coupling collimator heads (6) are used for coupling and adjusting light.
4. The efficient fiber space optical path coupling device of claim 1, wherein: the signal light is transmitted in the signal light optical fiber (7) and the signal light optical fiber collimating head (5), and the test light is transmitted in the coupling adjustment light-passing optical fiber (8) and the coupling adjustment light-passing optical fiber collimating head (6).
5. The efficient fiber space optical path coupling device of claim 1, wherein: the signal light optical fiber collimation head (5) is arranged in the center of the collimation head clamp (4), and the coupling adjustment light-passing optical fiber collimation head (6) is arranged around the signal light optical fiber collimation head (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283676.3U CN220568963U (en) | 2023-08-24 | 2023-08-24 | Efficient optical fiber space optical path coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322283676.3U CN220568963U (en) | 2023-08-24 | 2023-08-24 | Efficient optical fiber space optical path coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220568963U true CN220568963U (en) | 2024-03-08 |
Family
ID=90103173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322283676.3U Active CN220568963U (en) | 2023-08-24 | 2023-08-24 | Efficient optical fiber space optical path coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220568963U (en) |
-
2023
- 2023-08-24 CN CN202322283676.3U patent/CN220568963U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205280985U (en) | Parallel emission of light subassembly of multichannel wavelength | |
| KR100283952B1 (en) | Aligning device of optical waveguide device and optical fiber block and coupling method | |
| CN103017687B (en) | Orthogonal polarization fiber bragg grating vector torsion sensing device and detection method thereof | |
| CN100521411C (en) | Low noise tunable single frequency fiber laser for full-optical communication and its test system | |
| CN101483310A (en) | Polarization stablizing laser | |
| CN110838670B (en) | Dispersion-controlled all-fiber supercontinuum generation device and application | |
| CN107681423A (en) | Optical fiber laser | |
| CN210640481U (en) | Multi-wavelength mode-locked fiber laser based on nonlinear multi-mode interference effect | |
| CN220568963U (en) | Efficient optical fiber space optical path coupling device | |
| CN102494816B (en) | Pressure sensing method based on photonic crystal fibers and sensor | |
| CN104536092A (en) | Monolithic integration type multi-core optical fiber branching device and preparing method thereof | |
| CN112946822A (en) | High-isolation multi-wavelength transceiver and preparation process thereof | |
| CN1099740C (en) | Multi-port coupled output femtosecond fiber laser | |
| CN212341524U (en) | Space removes collimater making devices who disturbs mould | |
| CN113934011A (en) | Polarization controller, titanium diffusion straight waveguide tail fiber polarization crosstalk test system and method | |
| CN202075526U (en) | Optical isolator | |
| KR100299124B1 (en) | Apparatus for aligning 1xN WDM DEMUX-to-fiber block and 1xN WDM DEMUX therefor | |
| CN111290193A (en) | Frequency doubling device and all-fiber autocorrelation instrument | |
| CN201251670Y (en) | Device for Improving Laser Signal-to-Noise Ratio | |
| CN1702441A (en) | Apparatus and method for testing fiber optic insulator | |
| CN203241570U (en) | Prismatic loopback type fixed optical fiber attenuator | |
| CN101324735A (en) | Device for improving laser signal-to-noise ratio | |
| CN217543552U (en) | Polarization controller and titanium diffusion straight waveguide tail fiber polarization crosstalk test system | |
| CN213338123U (en) | Single-fiber bidirectional optical module | |
| CN214375390U (en) | Silicon optical isolator engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |