CN207994334U - A kind of full polarization fibre mode-locked laser based on phase bias - Google Patents
A kind of full polarization fibre mode-locked laser based on phase bias Download PDFInfo
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- CN207994334U CN207994334U CN201820409970.0U CN201820409970U CN207994334U CN 207994334 U CN207994334 U CN 207994334U CN 201820409970 U CN201820409970 U CN 201820409970U CN 207994334 U CN207994334 U CN 207994334U
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Abstract
The utility model discloses a kind of full polarization fibre mode-locked laser based on phase bias.The first polarization maintaining optical fiber collimator, wavelength division multiplexer, polarization-maintaining gain fibre, the second polarization maintaining optical fiber collimator, the first polarization splitting prism, Faraday rotator, birefringece crystal, the second polarization splitting prism constitute nonlinear amplified loop mirror in the full polarization fibre mode-locked laser of the utility model, and nonlinear amplified loop mirror plays the role of fast saturable absorber in mode locked fiber laser；Pulse is divided into two-beam by polarization splitting prism in annular mirror, it rotates and rotates clockwise counterclockwise respectively, Faraday rotation and birefringece crystal constitute phase-shift unit, light beam and the second beam light generate certain phase difference, two-beam interferes realization nonlinear phase shift mode locking after closing beam, this greatly reduces the threshold value of mode locking startup, while improving whole stability and reliability, Optical Maser System is simplified, coupled power and efficiency are improved.
Description
Technical field
The utility model is related to Fiber laser technologies more particularly to a kind of full polarization fibre mode locking based on phase bias to swash
Light device.
Background technology
For mode locked fiber laser by feat of at low cost, stability is high, compact-sized, and peak power is high, ultrashort excellent of pulse
Gesture plays irreplaceable role in scientific research and industrial processes.But the laser that comparison is common, mode-locked laser
It is difficult to self-starting, easily by external interference, price is high, hampers its application.In recent years, the demand of ultrafast laser more expands.Especially
It is the high-end micro Process market of industry that rapidly increased in recent years to high-end picosecond and the demand sustainable growth of femto-second laser.So
And using industry as these fields of representative to ultrafast laser under various circumstances, the stability of operating proposes higher want
It asks, and the stability and reliability of technical grade ultrafast laser especially seed source are not well solved always.It utilizes
The seed source technology of optical fiber technology substitution solid itself has many advantages, swashs using full polarization is fine in optical fiber technology
Light device is more considered the effective ways that can resist environment transformation.
Non-linear loop speculum, saturable absorber, nonlinear polarization rotation are three kinds of masters in mode locked fiber laser
The mode locking mechanism wanted.The 8 font mode locked fiber lasers that non-linear loop speculum is constituted are because be non PM fiber structure, lock
Mould difficulty in starting often needs external push；Semiconductor saturable absorber has the service life in saturable absorber, is easily damaged；Its
His carbon-based saturable absorber, such as carbon nanotube, graphene etc. are easy to deteriorate in a natural environment, lose mode locking startup
Function.Nonlinear polarization rotation can provide reliable and stable mode locking Initiated Mechanism, provide very high mean power, Er Qieke
Using almost all of pulse shaping mechanism, obtain high repetition frequency or low-repetition-frequency, picosecond or femtosecond pulse row.But it is this
Mode locking mechanism determines that intracavitary can only use non PM fiber, mostly very sensitive to environment with it, after losing mode locking, mode locking
State is not easy to restore.
Non-linear loop speculum was once earliest mode-locking device, with its manufactured double loop optical fiber laser（8 fonts
Optical fiber laser）Mode locking pulse can be provided.But it is generally not self-starting.Reason is that its loop is zero offset.
And in zero offset, susceptibility very little of the loop speculum to nonlinear phase shift.Therefore a phase bias is needed.It is so-called
Phase bias refers to that the light of counterpropagate in same light path undergoes different phase shifts.
Jungwon Kim（Nintaus's member）Et al. the paper delivered on Optics Letters《Subfemtosecond
synchronization of microwave oscillators with mode-locked Er-fiber lasers 》In
Lightwave-Microwave phase discriminator, asymmetric phase-shifter is utilized, is used in combination it as the phase bias device in fiber optic loop.
The patent application of Menlo Systems companies《Laser with non-linear optical loop
mirror》.(US201500711322) phase-shifter and phase bias method of Jungwon Kim etc. is utilized, constitutes a kind of lock
Mode laser.
What Honzatko et al. was delivered in 2013 on Optics Letters《A mode-locked thulium-
doped fiber laser based on a nonlinear loop mirror》Paper and Huang et al. were in 2015 years
It is delivered on Optics Letters《Direct generation of 2W average-power and 232nJ
picosecond pulses from an ultra-simple Yb-doped double-clad fiber laser》Paper,
Without phase bias optical element, therefore modelocking threshold is high.
Utility model content
Technical problem to be solved in the utility model is：
In order to obtain mode locked fiber laser self-starting and mode locking steady in a long-term, overcome due to environment such as temperature, vibrations
Mode locking caused by the variation of parameter deteriorates, the utility model proposes a kind of full polarization fibre mode-locked laser based on phase bias
Device.
The utility model uses following technical scheme to solve above-mentioned technical problem：
A kind of full polarization fibre mode-locked laser based on phase bias is provided, the full polarization fibre laser includes：
Pumping source, the first polarization maintaining optical fiber collimator, the second polarization maintaining optical fiber collimator, wavelength division multiplexer, polarization-maintaining gain fibre, the first polarization
Amici prism, the second polarization splitting prism, Faraday rotator, birefringece crystal, speculum；
Wherein, the pump ports of the wavelength division multiplexer connect pumping source；The input port of the wavelength division multiplexer connects
The public port of first polarization maintaining optical fiber collimator, the wavelength division multiplexer connects polarization-maintaining gain fibre, the polarization-maintaining gain fibre
The other end connect the second polarization maintaining optical fiber collimator；Two guarantors of the first polarization maintaining optical fiber collimator and the second polarization maintaining optical fiber collimator
The fast axle of polarisation fibre is orthogonal and the slow axis of two polarization maintaining optical fibres is orthogonal；Through the first polarization maintaining optical fiber collimator and
The laser of two polarization maintaining optical fiber collimators output is a branch of through the synthesis of the first polarization splitting prism, closes Shu Jiguang and passes through faraday's rotation successively
Turn device, birefringece crystal, the second polarization splitting prism and speculum；The Faraday rotator rotates incident light polarization direction
45 degree；Fraction of laser light exports after the reflection of the second polarization splitting prism；Through the second polarization splitting prism laser through described anti-
Penetrate backtracking after mirror reflects.
Foregoing full polarization fibre mode-locked laser further includes further bandwidth control element or dispersion member
Part.
Foregoing full polarization fibre mode-locked laser, further, the bandwidth control element uses optical filter, if
It sets between the second polarization splitting prism and speculum, to limit spectrum.
Foregoing full polarization fibre mode-locked laser, further, the dispersion element use grating pair, setting to exist
Between second polarization splitting prism and speculum, to dispersion compensation.
Foregoing full polarization fibre mode-locked laser, further, the density range of the grating is 150/milli
Rice ~ 2000/millimeter.
Foregoing full polarization fibre mode-locked laser further includes further half wave plate, is arranged first
Between polarization maintaining optical fiber collimator and the first polarization splitting prism, to adjust clockwise transmission light beam and counterclockwise transmission light beam
Beam intensity ratio.
Foregoing full polarization fibre mode-locked laser, further, the fast axle and slow axis of the birefringece crystal are drawn
Enter asymmetric phase shift, leads to the phase shift difference for propagating and propagating counterclockwise light beam clockwise, the phase shift differenceBy birefringece crystal
Property and thickness determine, i.e.,, whereinFor the refractive index of e light,For the refractive index of o light,lFor
The thickness of birefringece crystal,λFor wavelength.
Foregoing full polarization fibre mode-locked laser, further, polarization maintaining optical fibre used uses bais single-mode light
Fibre, big mode field area polarization maintaining optical fibre, doping gain polarization maintaining optical fibre, big mode field area double clad polarization maintaining optical fibre and polarization-maintaining photonic crystal
It is one or more in optical fiber.
Foregoing full polarization fibre mode-locked laser, further, the Faraday rotator uses sheet type method
Circulator or magneto-optical crystal is drawn to be inserted into the Faraday rotator constituted in permanent magnet.
The utility model has the following technical effects using above technical scheme is compared with the prior art：
The full polarization fibre mode-locked laser based on phase bias of the utility model, pulse have inverse respectively in intracavitary oscillation
Hour hands rotate and propagate two-beam clockwise, and Faraday rotator and birefringece crystal constitute phase-shift unit, clockwise with and it is inverse
Hour hands propagate two-beam and generate certain phase difference, and light beam clockwise and light beam counterclockwise realize nonlinear phase shift after closing beam interferometer
Mode locking, this greatly reduces the threshold value of mode locking startup；Whole stability and can is improved using full polarization fibre structure simultaneously
By property；In the Faraday rotator generation constituted in permanent magnet, is inserted into using the Faraday rotator or magneto-optical crystal of film magneto-optic memory technique
For the free space isolator of conventional optical fiber type isolator or crystal magneto-optic memory technique, Optical Maser System is simplified.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment one；
Fig. 2 is the schematic diagram of the utility model embodiment two；
Fig. 3 is the schematic diagram of the utility model embodiment three；
Fig. 4 is the schematic diagram of the utility model embodiment four.
Specific implementation mode
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With meaning identical with the general understanding of the those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with the meaning of idealization or too formal come
It explains.
In the utility model, pumping source is connected to the pumping end of wavelength division multiplexer；By the first polarization maintaining optical fiber collimator and
Wavelength-division multiplex input terminal is connected by polarization maintaining optical fibre, and wavelength division multiplexer common end is connect with polarization-maintaining gain fibre, polarization-maintaining gain light
Fibre is connect with the second polarization maintaining optical fiber collimator by polarization maintaining optical fibre；
The energy of pulse as needed determines the pump power of pumping source；
By wavelength division multiplexer by pumping source laser coupled to intracavitary, by pump power be increased to optical fiber laser threshold value it
On, by being directed at opposite the first polarization maintaining optical fiber collimator and the second polarization maintaining optical fiber collimator, laser is made to vibrate；
Oscillation in laser forms random small-pulse effect；
It propagates pulse counterclockwise to be emitted from the first polarization maintaining optical fiber collimator, pulse penetrates the first polarization splitting prism, incident
To Faraday rotator；The polarization direction of incident light is rotated 45 degree by Faraday rotator, makes polarization direction and birefringece crystal
An axis it is parallel；Then it is incident to birefringece crystal, phase shift occursAfterwards, then pass through the second polarization splitting prism, s is inclined
The component that shakes is reflected through the second polarization splitting prism to be exported, and p-polarization component is done here with the p-polarization component clockwise for propagating light beam
The second polarization splitting prism is penetrated after relating to；
It propagates pulse clockwise to be emitted from the second polarization maintaining optical fiber collimator, by the first polarization splitting prism and biography counterclockwise
It is a branch of to broadcast light beam synthesis, is incident to Faraday rotator；The polarization direction of incident light is rotated 45 degree by Faraday rotator, is made partially
The direction that shakes is parallel with another axis of birefringece crystal；Then it is incident to birefringece crystal, phase shift occursAfterwards, then pass through
Second polarization splitting prism, s polarized components are reflected through the second polarization splitting prism to be exported, p-polarization component and propagation light counterclockwise
Beam p-polarization component penetrates the second polarization splitting prism after interfering here；
Through the laser beam of the second polarization splitting prism, it is incident to dispersion compensation device or bandwidth control element, most
After impinge perpendicularly on speculum；The backtracking after speculum reflects passes through dispersion compensation device or bandwidth successively again
Control element, the second polarization splitting prism, birefringece crystal；Laser, which again passes by after phase shift occurs for birefringece crystal, becomes oval
Polarised light again passes by Faraday rotator rear polarizer direction and rotates 45 degree again；The first polarization spectro is passed through in elliptical polarization pulse
After prism, s polarized components are reflected by the first polarization splitting prism into the second polarization maintaining optical fiber collimator, using polarization-maintaining
The amplification of gain fibre and pump light is emitted to form one counterclockwise from the first polarization maintaining optical fiber collimator into wavelength division multiplexer
Propagate cycle；P-polarization component is entered through the first polarization splitting prism in the first polarization maintaining optical fiber collimator, and it is multiple to enter back into wavelength-division
It is emitted to form a biography clockwise from the second polarization maintaining optical fiber collimator by the amplification of pump light and polarization-maintaining gain fibre with device
Broadcast cycle；The pulse propagated clockwise and anticlockwise is respectively formed circuit, and laser forms oscillation.
First polarization maintaining optical fiber collimator, wavelength division multiplexer, polarization-maintaining gain fibre, the second polarization maintaining optical fiber collimator, first are partially
Shake Amici prism, Faraday rotator, birefringece crystal, the second polarization splitting prism constitute nonlinear amplified loop mirror, it is non-thread
Property amplification annular mirror play the role of fast saturable absorber in mode locked fiber laser, Faraday rotation, birefringece crystal make
It obtains propagated laser clockwise and anticlockwise and generates certain phase difference, constitute phase bias, the reflectivity of pulse is put with non-linear
Two-beam nonlinear phase shift amount is related in big annular mirror, and reflectivity is the function of the phase shift difference of two-beam, introduces phase shift offset phase
Shifting amount is bigger, and reflectivity is higher, and phase-shift phase more antiradar reflectivity is lower, and the central part of pulse is strong, in nonlinear amplified loop mirror
The phase-shift phase of generation is big, so reflectivity is high, pulse is more prone to form oscillation, so that nonlinear amplified loop mirror is realized
The effect of fast saturable absorber, realizes Mode-locking For Lasers, forms ultrashort pulse output.
Embodiment one
As shown in Figure 1, the full polarization fibre mode-locked laser based on phase bias of the utility model includes：Pumping source 2,
First polarization maintaining optical fiber collimator 3, the second polarization maintaining optical fiber collimator 10, wavelength division multiplexer 1, polarization-maintaining gain fibre 11, first polarize
Amici prism 9, the second polarization splitting prism 6, Faraday rotator 8, birefringece crystal 7, grating pair 5, speculum 4；Wherein, wave
Division multiplexer 1 has pump ports, input port, public port；Pumping source 2 passes through polarization maintaining optical fibre and wavelength division multiplexer 1
Pump portsConnection；First polarization maintaining optical fiber collimator 3 and 1 input port of wavelength division multiplexerConnection；Polarization-maintaining gain fibre 11
With 1 public port of wavelength division multiplexerConnection.Two guarantors of the first polarization maintaining optical fiber collimator 3 and the second polarization maintaining optical fiber collimator 10
The fast axle of polarisation fibre is orthogonal and the slow axis of two polarization maintaining optical fibres is orthogonal；Wherein, pulse is in the first polarization maintaining optical fibre standard
The pulse polarization direction that straight device 3 exports is horizontal direction, the i.e. directions p.Oscillation forms random small-pulse effect in the laser, random small
Pulse is divided into fiber optic loop propagates and propagates counterclockwise two components clockwise；Pulse is propagated counterclockwise from the first polarization maintaining optical fibre
Collimator 3 is emitted, and pulse penetrates the first polarization splitting prism 9, is incident to Faraday rotator 8；Faraday rotator 8 will be incident
The polarization direction of light rotates 45 degree, makes the fast of polarization direction and birefringece crystal 7（Or slow axis）Axis is parallel；Then it is incident to two-fold
Crystal 7 is penetrated, phase shift occursAfterwards, it is incident to the second polarization splitting prism 6, s polarized components are anti-through the second polarization splitting prism 6
Output is penetrated, p-polarization component penetrates the second polarization splitting prism 6 after interfering here with the p-polarization component for propagating light beam clockwise；
It propagates pulse clockwise to be emitted from the second polarization maintaining optical fiber collimator 10, by the first polarization splitting prism 9 and propagation light counterclockwise
Shu Hecheng is a branch of, is incident to Faraday rotator 8；The polarization direction of incident light is rotated 45 degree by Faraday rotator 8, makes polarization
The slow axis in direction and birefringece crystal 7（Or fast axle）Parallel generation phase shiftAfterwards, it is incident to the second polarization splitting prism 6, s is inclined
The component that shakes is reflected through the second polarization splitting prism 6 to be exported, and p-polarization component and counterclockwise the p-polarization component of propagation light beam are here
The second polarization splitting prism 6 is penetrated after interference；Through the second polarization splitting prism 6 laser light incident to grating pair 5, it is last vertical
It is incident on speculum 4；The backtracking after the reflection of speculum 4, passes through grating pair 5, the second polarization splitting prism successively again
6, birefringece crystal 7；Laser, which again passes by after phase shift occurs for birefringece crystal 7, becomes elliptically polarized light, again passes by faraday
8 rear polarizer direction of circulator rotates 45 degree again；After the first polarization splitting prism 9, s polarized components are passed through for elliptical polarization pulse
First polarization splitting prism 9 is reflected into the second polarization maintaining optical fiber collimator 10, using polarization-maintaining gain fibre 11 and pumping
The amplification of light forms one from the outgoing of the first polarization maintaining optical fiber collimator 3 and propagates cycle counterclockwise into wavelength division multiplexer 1；P is inclined
The component that shakes is entered through the first polarization splitting prism 9 in the first polarization maintaining optical fiber collimator 3, into wavelength division multiplexer 1, using
The amplification of polarization-maintaining gain fibre 11 and pump light forms clockwise propagates from the outgoing of the second polarization maintaining optical fiber collimator 10 and follows
Ring；The pulse propagated clockwise and anticlockwise is respectively formed circuit, and laser forms oscillation.First polarization maintaining optical fiber collimator 3, wavelength-division are multiple
With device 1, polarization-maintaining gain fibre 11, the second polarization maintaining optical fiber collimator 10, the first polarization splitting prism 9, Faraday rotator 8, double
Refracting crystal 7, the second polarization splitting prism 6 constitute nonlinear amplified loop mirror, and nonlinear amplified loop mirror swashs in modelocked fiber
Play the role of fast saturable absorber in light device, Faraday rotation 8, birefringece crystal 7 swash so that propagating clockwise and anticlockwise
Light generates certain phase difference, constitutes phase bias, and two-beam is non-linear in the reflectivity and nonlinear amplified loop mirror of pulse
Phase-shift phase is related, and reflectivity is the function of the phase shift difference of two-beam, and the introducing bigger reflectivity of phase shift offset phase-shift phase is higher, phase shift
Amount more antiradar reflectivity is lower, and the central part of pulse is strong, and the phase-shift phase generated in nonlinear amplified loop mirror is big, so reflection
Rate is high, and pulse is more prone to form oscillation, so that nonlinear amplified loop mirror realizes the effect of fast saturable absorber, it is real
Existing Mode-locking For Lasers form ultrashort pulse output.
Embodiment two
As shown in Fig. 2, as shown in Figure 1, the full polarization fibre mode-locked laser packet based on phase bias of the utility model
It includes：Pumping source 2, the first polarization maintaining optical fiber collimator 3, the second polarization maintaining optical fiber collimator 10, wavelength division multiplexer 1, polarization-maintaining gain fibre
11, the first polarization splitting prism 9, the second polarization splitting prism 6, Faraday rotator 8, birefringece crystal 7, speculum 4 and band
Wide control element 12；Wherein, wavelength division multiplexer 1 has pump ports, input port, public port.It is adopted in the present embodiment
Replace grating pair with bandwidth control element, bandwidth control element uses optical filter 12, setting birefringece crystal and speculum it
Between, to limit spectrum, other are the same as embodiment one.
Embodiment three
As shown in figure 3, as shown in Figure 1, the full polarization fibre mode-locked laser packet based on phase bias of the utility model
It includes：Pumping source 2, the first polarization maintaining optical fiber collimator 3, the second polarization maintaining optical fiber collimator 10, wavelength division multiplexer 1, polarization-maintaining gain fibre
11, the first polarization splitting prism 9, the second polarization splitting prism 6, Faraday rotator 8, birefringece crystal 7, grating pair 5, reflection
Mirror 4 and half wave plate 13；Wherein, wavelength division multiplexer 1 has pump ports, input port, public port.This reality
It applies and uses half wave plate in example, to adjust the beam intensity ratio of transmitting beam clockwise and anticlockwise, be arranged in the first polarization-maintaining
Between optical fiber collimator and the first polarization splitting prism, other are the same as embodiment one.
Example IV
As shown in figure 4, as shown in Figure 1, the full polarization fibre mode-locked laser packet based on phase bias of the utility model
It includes：Pumping source 2, the first polarization maintaining optical fiber collimator 3, the second polarization maintaining optical fiber collimator 10, wavelength division multiplexer 1, polarization-maintaining gain fibre
11, the first polarization splitting prism 9, the second polarization splitting prism 6, Faraday rotator 8, birefringece crystal 7, speculum 4, bandwidth
Control element 12 and half wave plate 13；Wherein, wavelength division multiplexer 1 has pump ports, input port, public port.Grating pair is replaced using bandwidth control element in the present embodiment, bandwidth control element uses optical filter 12, is arranged in birefringence
Between crystal and speculum, to limit spectrum；Half wave plate is adjusting the light of transmitting beam clockwise and anticlockwise
Strong ratio, is arranged between the first polarization maintaining optical fiber collimator and the first polarization splitting prism, other are the same as embodiment one.
It is finally noted that the purpose for publicizing and implementing mode is to help to further understand the utility model, still
It will be appreciated by those skilled in the art that：In the spirit and scope for not departing from the utility model and the attached claims, respectively
Kind substitutions and modifications are all possible.Therefore, the utility model should not be limited to embodiment disclosure of that, the utility model
Claimed range is subject to the scope defined in the claims.
Claims (8)
1. a kind of full polarization fibre mode-locked laser based on phase bias, which is characterized in that the full polarization fibre laser
Including：Pumping source, the first polarization maintaining optical fiber collimator, the second polarization maintaining optical fiber collimator, wavelength division multiplexer, polarization-maintaining gain fibre,
One polarization splitting prism, the second polarization splitting prism, Faraday rotator, birefringece crystal, speculum；Wherein, the wavelength-division
The pump ports of multiplexer connect pumping source；The input port of the wavelength division multiplexer connects the first polarization maintaining optical fiber collimator, institute
The public port connection polarization-maintaining gain fibre of wavelength division multiplexer is stated, the other end of the polarization-maintaining gain fibre connects the second polarization-maintaining light
Fine collimator；The fast axle of two polarization maintaining optical fibres of the first polarization maintaining optical fiber collimator and the second polarization maintaining optical fiber collimator is orthogonal,
And the slow axis of two polarization maintaining optical fibres is orthogonal；It is exported through the first polarization maintaining optical fiber collimator and the second polarization maintaining optical fiber collimator
Laser synthesizes a branch of after the first polarization splitting prism, closes Shu Jiguang and passes through Faraday rotator, birefringece crystal, the successively
Two polarization splitting prisms and speculum；Incident light polarization direction is rotated 45 degree by the Faraday rotator；Fraction of laser light is through
It is exported after the reflection of two polarization splitting prisms；It is returned through the roads speculum reflection Hou Yuan through the laser of the second polarization splitting prism
It returns.
2. full polarization fibre mode-locked laser as described in claim 1, which is characterized in that further include bandwidth control element or
Dispersion element.
3. full polarization fibre mode-locked laser as claimed in claim 2, which is characterized in that the bandwidth control element is using filter
Mating plate is arranged between the second polarization splitting prism and speculum, to limit spectrum.
4. full polarization fibre mode-locked laser as claimed in claim 2, which is characterized in that the dispersion element uses grating
It is right, it is arranged between the second polarization splitting prism and speculum, to dispersion compensation.
5. full polarization fibre mode-locked laser as claimed in claim 2, which is characterized in that further include half wave plate, if
It sets between the first polarization maintaining optical fiber collimator and the first polarization splitting prism, to adjust clockwise transmission light beam and pass counterclockwise
Lose the beam intensity ratio of beam.
6. full polarization fibre mode-locked laser as described in claim 1, which is characterized in that the fast axle of the birefringece crystal
Introducing asymmetric phase shift with slow axis leads to phase shift difference。
7. full polarization fibre mode-locked laser as described in claim 1, which is characterized in that polarization maintaining optical fibre used uses polarization-maintaining
Single mode optical fiber, big mode field area polarization maintaining optical fibre, doping gain polarization maintaining optical fibre, big mode field area double clad polarization maintaining optical fibre and polarization-maintaining light
It is one or more in photonic crystal fiber.
8. full polarization fibre mode-locked laser as described in claim 1, which is characterized in that the Faraday rotator is using thin
Chip Faraday rotator or magneto-optical crystal are inserted into the Faraday rotator constituted in permanent magnet.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364923A (en) * | 2018-03-26 | 2019-10-22 | 雷小权 | A kind of full polarization fibre mode-locked laser based on phase bias |
| CN111969401A (en) * | 2020-08-31 | 2020-11-20 | 中国科学院合肥物质科学研究院 | Pulse energy increasing method of self-starting Figure-9 passive mode-locking optical fiber laser |
| CN113206430A (en) * | 2021-03-30 | 2021-08-03 | 华南师范大学 | Phase shifter, mode-locked laser and control method of mode-locked laser |
-
2018
- 2018-03-26 CN CN201820409970.0U patent/CN207994334U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364923A (en) * | 2018-03-26 | 2019-10-22 | 雷小权 | A kind of full polarization fibre mode-locked laser based on phase bias |
| CN111969401A (en) * | 2020-08-31 | 2020-11-20 | 中国科学院合肥物质科学研究院 | Pulse energy increasing method of self-starting Figure-9 passive mode-locking optical fiber laser |
| CN111969401B (en) * | 2020-08-31 | 2021-08-17 | 中国科学院合肥物质科学研究院 | Pulse energy increasing method of self-starting Figure-9 passive mode-locking optical fiber laser |
| CN113206430A (en) * | 2021-03-30 | 2021-08-03 | 华南师范大学 | Phase shifter, mode-locked laser and control method of mode-locked laser |
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