CN208445100U - A kind of realization vector orphan and the controllable output optical fibre laser of scalar orphan - Google Patents

A kind of realization vector orphan and the controllable output optical fibre laser of scalar orphan Download PDF

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Publication number
CN208445100U
CN208445100U CN201821339502.7U CN201821339502U CN208445100U CN 208445100 U CN208445100 U CN 208445100U CN 201821339502 U CN201821339502 U CN 201821339502U CN 208445100 U CN208445100 U CN 208445100U
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China
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orphan
scalar
single mode
optical fibre
output optical
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CN201821339502.7U
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Chinese (zh)
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孙国勇
王超
林凯琳
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Shantou University
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Shantou University
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Abstract

The utility model embodiment discloses a kind of realization vector orphan and the controllable output optical fibre laser of scalar orphan, including sequentially connected material saturable absorber, the first Polarization Controller, single mode conical fiber, the second Polarization Controller, single mode conical fiber both ends are fixedly installed on smooth metal plate, and the cone area of the single mode conical fiber separates and contacts with the smooth metal plate by pressing mechanism.Using the utility model, use the single mode conical fiber of low cost, preparation is simple, it is easy to operate, this flexible laser device provide it is stable and can self-starting modelocking ultrashort vector sum scalar clock, and it can easily achieve the changeable operation of synperiodic vector sum scalar orphan output, this laser is as a kind of convenient experiment porch, for studying by periodic boundary condition and easily operated nonlinear wave, and be applied in various optical fields, this is convenient and attractive for practical application.

Description

A kind of realization vector orphan and the controllable output optical fibre laser of scalar orphan
Technical field
The utility model relates to optical-fiber laser fields more particularly to a kind of realization vector orphan and scalar orphan controllably to export Optical fiber laser.
Background technique
Optical fiber laser be a kind of, high-gain low with laser threshold, good heat dissipation, wide absorption and radiation and with The advantages that other fiber plants are compatible, small in size, stability is high, can satisfy and use under conditions of the overwhelming majority.
When the optical fiber based on material saturable absorber (such as single-walled carbon nanotube, graphene or other topological materials) Laser, resonant cavity is interior there is no when biggish Polarization Dependent Loss, and the pulse of the output of the laser is vector orphan.And In the resonant cavity of one optical fiber laser, when there are biggish Polarization Dependent Loss, artificial saturable absorption effect is greater than material Expect the influence of saturable absorber, the pulse of optical fiber laser output will be scalar orphan.When this no polarization dependent loss When single mode conical fiber and smooth metal plate contact, in conical fiber perpendicular to the loss of the mode component of contact surface be parallel to The loss of the mode component of contact surface is different, so can generate Polarization Dependent Loss at this time.
Utility model content
The technical problem to be solved by the embodiment of the utility model is, providing a kind of realization vector orphan and scalar orphan Controllable output optical fibre laser.The controllable output of vector orphan and scalar orphan can be achieved.
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of realization vector orphan and scalar orphan Controllable output optical fibre laser, including sequentially connected material saturable absorber, the first Polarization Controller, single mode cone of light Fine, the second Polarization Controller, single mode conical fiber both ends are fixedly installed on smooth metal plate, the single mode conical fiber Cone area separate and contact with the smooth metal plate by pressing mechanism.
Further, cone area's minimum diameter is 2 μm -9 μm.
Further, the length of the single mode conical fiber is 3.5cm-7cm.
Further, the mechanism that presses includes lifting platform, be disposed with downwards below the lifting platform rubber with And metallic film.
Further, the lifting platform vertical sliding motion is set on lift rail, and driving institute is provided on the lift rail The micrometer caliper of lifting platform is stated, the lift rail bottom is provided with the spring for acting on the lifting platform.
It further, further include sequentially connected pump light source, wavelength division multiplexer, doped fiber, the doped fiber It is connect with the material saturable absorber.
Further, further include the unrelated isolator of sequentially connected polarization, single mode optical fiber, output coupler, it is described partially The unrelated isolator that shakes is connected with second Polarization Controller.
Implement the utility model embodiment, has the following beneficial effects: the utility model optical fiber laser using low cost Single mode conical fiber, preparation is simple, easy to operate, this flexible laser device provide it is stable and can self-starting modelocking it is ultrashort Vector sum scalar clock, and can easily achieve the changeable operation of vector sum scalar orphan's sequence output in equal periods, This laser is as a kind of convenient experiment porch, for studying by periodic boundary condition and easily operated nonlinear wave, and It is applied in various optical fields, is conducive to practical application.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model;
Fig. 2 is the switch structure diagram that cone area and the metal plate of conical fiber are separated and contacted;
Fig. 3 is the structural schematic diagram of conical fiber;
Fig. 4 is the mounting structure schematic diagram of conical fiber.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type is described in further detail.
A kind of realization vector orphan of the utility model embodiment and the controllable output optical fibre laser of scalar orphan, are successively wrapped Include pump light source 1, wavelength division multiplexer 2, doped fiber 3, material saturable absorber 4 (such as single-walled carbon nanotube), the first polarization Controller 5, single mode conical fiber 6, the second Polarization Controller 7, the unrelated isolator 8 of polarization and single mode optical fiber 9 and output coupling Device 10.
In the present embodiment, using the pump light source of 980nm wavelength.The doped fiber used is intracavitary as laser resonator Activated material.It is designed by the structure of Polarization Controller 1 and 2 sandwich conical fiber of Polarization Controller, and drawn intracavitary Enter saturable absorber, so that the novel laser can be realized the controllable output of vector sum scalar orphan.
Single mode conical fiber is by fiber-draw to 3.5cm-7cm length, so that the cone area minimum diameter of conical fiber About 2 μm -9 μm, as shown in figure 3, determining single mode conical fiber no polarization dependent loss, and loss itself is less than 0.5dB.It will Conical fiber is fixed on smooth metal plate, and generating when conical fiber is contacted to smooth metal plate is about that the polarization of 15dB is related Loss and the overall losses less than 3dB.
As shown in Fig. 2, the both ends 61,62 of single mode conical fiber 6 are fixedly installed on smooth metal plate 11, which can lead to The fixed embodiment of gluing is crossed, when the cone area 63 of single mode conical fiber is separated with smooth metal plate, intracavitary there is no possess The device of biggish Polarization Dependent Loss, the Ultra-short Fiber Laser realize that mode locking, output vector are lonely with single-walled carbon nanotube Son;When single mode conical fiber and smooth metal plate contact, there is the related damage of polarization in the Ultra-short Fiber Laser resonant cavity Consumption, artificial saturable absorption effect occupy advantage, at this point, nonlinear polarization rotation meeting suppressor pulse polarization, to export Scalar orphan.
In order to realize that the cone area of single mode conical fiber is separated with smooth metal plate, the cone area of single mode conical fiber is by pressing Mechanism is separated and is contacted with the smooth metal plate 11, and pressing mechanism includes lifting platform 12, is set gradually downwards below lifting platform There are rubber 13 and metallic film 14.
12 vertical sliding motion of lifting platform is set on lift rail 15, and the spiral that driving lifting platform 12 is provided on lift rail 15 is surveyed Micro- device 16.
Lift rail 15 is provided with the spring 17 that lifting platform 12 Yu 15 slipper of lift rail are acted on from bottom
There are a power straight up to lifting platform 12 for spring 17, and micrometer caliper can be perpendicular to the application of lifting platform 12 Straight downward pressure.By adjusting micrometer caliper scale, adjustable micrometer caliper applies the big of strength to lifting platform 12 It is small.It is adjusted up when by micrometer caliper scale, micrometer caliper, which applies pressure to lifting platform 12, to be reduced, and spring can make to rise 12 upward sliding of platform drops;It is adjusted downwards when by the scale of micrometer caliper, when micrometer caliper applies pressure to lifting platform 12, bullet Spring can be compressed, 12 slide downward of lifting platform.
The utility model the advantage is that:
(1) the utility model realizes the lock of optical fiber laser using standard single mode conical fiber and material saturable absorber Mould output, entire light channel structure is simple, and is by the same output port in the switching that vector orphan and scalar orphan export Realize output, the vector orphan and scalar orphan of output are to wait the periods;
(2) the utility model is current most simple, the most effective side for realizing vector orphan and scalar orphan and controllably exporting Method, and the optical fiber laser has the characteristics that self-starting modelocking;
(3) the utility model is able to achieve short pulse output, and the pulse duration of output is picosecond, it might even be possible to be realized The output of femtosecond short pulse;
(4) the utility model is small in size, stability is high, structure is simple, is very easy to when production, single mode cone of light Fibre can draw cone one-pass molding by scanning.
Certainly the above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with this The people of technology can understand the content of the utility model and implement accordingly, and the protection model of the utility model can not be limited with this It encloses.Any modifications made in accordance with the spirit of the main technical solutions of the utility model should all cover the guarantor in the utility model Within the scope of shield.

Claims (7)

1. a kind of realization vector orphan and the controllable output optical fibre laser of scalar orphan, which is characterized in that including sequentially connected Material saturable absorber, the first Polarization Controller, single mode conical fiber, the second Polarization Controller, the single mode conical fiber Both ends are fixedly installed on smooth metal plate, and the cone area of the single mode conical fiber is by pressing mechanism and the smooth metal plate Separation and contact.
2. realization vector orphan according to claim 1 and the controllable output optical fibre laser of scalar orphan, which is characterized in that Cone area's minimum diameter is 2 μm -9 μm.
3. realization vector orphan according to claim 2 and the controllable output optical fibre laser of scalar orphan, which is characterized in that The length of the single mode conical fiber is 3.5cm-7cm.
4. realization vector orphan according to claim 3 and the controllable output optical fibre laser of scalar orphan, which is characterized in that The mechanism that presses includes lifting platform, is disposed with rubber and metallic film below the lifting platform downwards.
5. realization vector orphan according to claim 4 and the controllable output optical fibre laser of scalar orphan, which is characterized in that The lifting platform vertical sliding motion is set on lift rail, and the spiral micrometer for driving the lifting platform is provided on the lift rail Device, the lift rail bottom are provided with the spring for acting on the lifting platform.
6. realization vector orphan according to claim 1-5 and the controllable output optical fibre laser of scalar orphan, It is characterized in that, further includes sequentially connected pump light source, wavelength division multiplexer, doped fiber, the doped fiber and the material Saturable absorber connection.
7. realization vector orphan according to claim 6 and the controllable output optical fibre laser of scalar orphan, which is characterized in that It further include the unrelated isolator of sequentially connected polarization, single mode optical fiber, output coupler, the unrelated isolator of the polarization and described the Two Polarization Controllers are connected.
CN201821339502.7U 2018-08-17 2018-08-17 A kind of realization vector orphan and the controllable output optical fibre laser of scalar orphan Expired - Fee Related CN208445100U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829164A (en) * 2019-11-19 2020-02-21 长春理工大学 All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulses
CN114268008A (en) * 2021-12-23 2022-04-01 中国地质大学(武汉) Vector soliton laser

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829164A (en) * 2019-11-19 2020-02-21 长春理工大学 All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulses
CN110829164B (en) * 2019-11-19 2021-07-13 长春理工大学 All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulses
CN114268008A (en) * 2021-12-23 2022-04-01 中国地质大学(武汉) Vector soliton laser
CN114268008B (en) * 2021-12-23 2023-10-17 中国地质大学(武汉) Vector soliton laser

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Granted publication date: 20190129