CN108879302B - Optical frequency comb generator based on optical parametric oscillation - Google Patents
Optical frequency comb generator based on optical parametric oscillation Download PDFInfo
- Publication number
- CN108879302B CN108879302B CN201810782495.6A CN201810782495A CN108879302B CN 108879302 B CN108879302 B CN 108879302B CN 201810782495 A CN201810782495 A CN 201810782495A CN 108879302 B CN108879302 B CN 108879302B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- thulium
- doped optical
- doped
- laser
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06716—Fibre compositions or doping with active elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/1083—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering using parametric generation
Abstract
The invention discloses an optical frequency comb generator based on optical parametric oscillation, which comprises a pump light source circuit, a thulium-doped optical fiber amplification circuit and an optical frequency comb generation circuit, wherein the pump light source circuit, the thulium-doped optical fiber amplification circuit and the optical frequency comb generation circuit are sequentially connected. The invention provides basic conditions for the generation of laser light sources with 2 mu m wave bands and intermediate infrared wave bands, and core technology of optical parametric oscillation, determines the generated wave band range and the optical frequency comb interval size, and has great application potential in the fields of laser medical treatment, sensing, radar, space communication and the like.
Description
Technical Field
The invention belongs to the technical field of laser light sources, and particularly relates to an optical frequency comb generator based on optical parametric oscillation.
Background
The optical parametric oscillation is a coherent light source with tunable wavelength. In the optical resonant cavity, an optical parameter generates oscillation under certain conditions. The optical parametric oscillation can convert laser light of one frequency into coherent output of a signal and an idle frequency, and can realize tuning in a wide frequency range, and is one of important means for generating tunable laser light. Optical parametric oscillation is currently the only way to generate a wide range of continuously tunable wavelength (wavelengths from infrared to visible and even ultraviolet) lasers. An Optical Parametric Oscillator (OPO) is a widely tuned coherent light source that overcomes the limitations of the output wavelengths of solid and gas lasers and is capable of producing laser light from ultraviolet to far infrared. A laser beam of relatively high frequency and intensity and a beam of relatively low frequency and intensity are passed through the nonlinear medium simultaneously, with the result that the signal wave is amplified, while a third light wave (called idler wave) is also generated. The frequency of the idle wave is exactly equal to the frequency of the unpumped light, and this nonlinear optical phenomenon is called optical parametric amplification. If the nonlinear medium is placed in the optical resonant cavity, the pumping light wave, the signal light wave and the idle light wave pass through the nonlinear medium repeatedly, and when the gain of the signal light wave and the idle light wave obtained by parametric amplification is larger than the loss of the signal light wave and the idle light wave in the resonant cavity, laser oscillation is formed in the resonant cavity.
Optical Frequency Comb (OFC) refers to a spectrum composed of a series of frequency components that are uniformly spaced and have a coherent stable phase relationship on a frequency spectrum, and has wide applications in the fields of optical arbitrary waveform generation, multi-wavelength ultrashort pulse generation, dense wavelength division multiplexing, and the like. The frequency comb is applied to the existing optical fiber cable, so that once the frequency comb is applied, the transmission efficiency of the optical fiber cable can be greatly improved, the speed limit of the internet can be eliminated, and most importantly, the related cost can be reduced in a large scale.
The 2-micron waveband laser works in a human eye safe waveband, is human eye safe laser, has the advantages of high efficiency and good beam quality, can be widely applied to the fields of laser medical treatment, sensing, radar, space communication and the like, and can also be used as a pumping source for infrared parametric oscillation in 3-5 microns.
Moreover, the light wave generated by the conventional laser has the disadvantages of low yield, complex circuit structure, poor performance stability, etc., and further research and improvement are needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an optical frequency comb generator based on optical parametric oscillation. The invention not only realizes the generation of new wavelength of 2 mu m wave band, but also generates optical frequency comb with wave band wider than 140nm, and adopts all-fiber device, which has the advantages of simple structure, stable performance, easy operation, small volume, low cost, etc., is easier to modularize and integrate, and is convenient for being applied in photoelectric system as light source in the future. The optical frequency comb generator based on optical parametric oscillation has the advantages of high gain, wide waveband range and the like.
The invention adopts the following technical scheme:
the utility model provides an optical frequency comb generator based on optical parametric oscillation, includes pump light source circuit, mixes thulium optical fiber and amplifies light path and optical frequency comb and produce the light path, pump light source circuit, mix thulium optical fiber and amplify light path and optical frequency comb and produce the light path and connect gradually.
As a preferred technical solution, the pump light source optical path includes: 1550nm pump laser, wavelength division multiplexer, single mode thulium-doped optical fiber, circulator, polarization controller, coupler, tunable filter, pump laser, wavelength division multiplexer, single mode thulium-doped optical fiber, circulator, polarization controller, coupler, tunable filter connect gradually, tunable filter with wavelength division multiplexer connects.
As a preferred technical scheme, the optical fiber laser device further comprises a polarization-maintaining thulium-doped optical fiber and a reflector, wherein the circulator, the polarization-maintaining thulium-doped optical fiber and the reflector are sequentially connected.
As a preferred technical scheme, the optical fiber amplifier further comprises an isolator, wherein the coupler is connected with the isolator, and the isolator is connected with the thulium-doped optical fiber amplification optical path as an output end of the pump light source optical path.
As a preferred technical scheme, the light splitting ratio of the coupler is 70: 30.
As a preferred technical solution, the thulium doped optical fiber amplifying optical path includes: the first-stage thulium-doped optical fiber amplifier, the isolator and the second-stage thulium-doped optical fiber amplifier are sequentially connected.
As a preferred technical scheme, the primary thulium-doped optical fiber amplifier comprises a wavelength division multiplexer, a 980nm pump laser and a thulium-doped optical fiber, wherein the 980nm pump laser, the wavelength division multiplexer and the thulium-doped optical fiber are sequentially connected, and the wavelength division multiplexer is connected with an output end of the pump light source optical path;
and/or the output power of the first-stage thulium-doped optical fiber amplifier is about 100 mW.
As a preferred technical solution, the two-stage thulium-doped fiber amplifier includes a wavelength division multiplexer, a 980nm pump laser, and a thulium-doped fiber, the 980nm pump laser, the wavelength division multiplexer, and the thulium-doped fiber are sequentially connected, the wavelength division multiplexer is connected to the isolator, and the thulium-doped fiber is connected to the optical frequency comb generation optical path as an output end of the thulium-doped fiber amplification optical path;
and/or the output power of the second-stage thulium-doped optical fiber amplifier is about 400-500mW
As a preferred technical solution, the optical frequency comb generation optical path includes: the optical fiber amplifier comprises a coupler, a polarization controller, a high nonlinear optical fiber and a spectrometer, wherein the input end and the output end of the coupler are respectively connected with the output end of the thulium-doped optical fiber amplification light path and the spectrometer; the coupler, the polarization controller and the high nonlinear optical fiber are connected end to form a loop.
As a preferred technical solution, the length of the high nonlinear optical fiber is 400 m; and/or the high nonlinear optical fiber has a zero dispersion wavelength of 1550 nm; and/or the splitting ratio of the coupler is 90: 10.
The invention has the following components and working principles:
the thulium-doped optical fiber amplification light path comprises a first-stage thulium-doped optical fiber amplifier (including a 980nm pump laser, a wavelength division multiplexer and a thulium-doped optical fiber), an isolator and a second-stage thulium-doped optical fiber amplifier (including a 980nm pump laser, a wavelength division multiplexer and a thulium-doped optical fiber), and a light frequency comb generation light path comprises a 90:10 coupler, a polarization controller, a high nonlinear optical fiber and a spectrometer; the pump laser is output from the thulium-doped tunable fiber laser, then is connected with a fiber isolator, then is input into a primary thulium-doped fiber amplifier consisting of a 980nm pump laser, a thulium-doped fiber and a wavelength division multiplexer, then is input into a secondary thulium-doped fiber amplifier consisting of the 980nm pump laser, the thulium-doped fiber and the wavelength division multiplexer, then is split by a 90:10 coupler, wherein 90% of the laser enters a resonant cavity, passes through a polarization controller and a section of 400m high nonlinear fiber and then passes through the 90:10 coupler again for circulation, and the rest 10% of the laser is input into a spectrometer. The invention relates to an optical frequency comb generator based on optical parametric oscillation, which mainly comprises four sections of thulium-doped optical fibers, three wavelength division multiplexers, two 980nm pump lasers, two couplers, two polarization controllers, two couplers, a Fabry-Perot tunable filter, a 1550nm pump laser, a circulator, a reflector, a section of high nonlinear optical fiber and a spectrometer; the invention mainly comprises three parts of light paths: the optical path is generated by a pump light source circuit, a thulium-doped optical fiber amplification optical path and an optical frequency comb, firstly, a 1550nm pump laser in a first part of the pump light source circuit is used as a sending end to output pump laser, then the 1550nm laser is excited at a single-mode thulium-doped optical fiber through a wavelength division multiplexer to generate 2 mu m waveband laser, one end of a circulator enables the laser to pass through a polarization-preserving thulium-doped optical fiber and then to be reflected back to the optical path by a reflector, then, the other end of the circulator outputs and is connected with a polarization controller, the laser is connected with a Fabry-Perot adjustable filter through a coupler and is fed back to the echo division multiplexer to form a loop, meanwhile, the other end of the coupler outputs the laser, the laser passes through an isolator protects the optical path to prevent the;
the laser output by the pumping light source optical path enters a thulium-doped optical fiber amplification optical path which is taken as an access end by a wavelength division multiplexer, firstly enters a first-stage thulium-doped optical fiber amplifier consisting of the wavelength division multiplexer, a 980nm pumping laser and thulium-doped optical fiber for first-stage amplification, the average power of the laser after the first-stage amplification output is about 100mW, the average power is still too small to be enough for a four-wave mixing process, so that the optical path is protected by an isolator to prevent the laser from being reflected back to an original optical path to damage a device in the front, then the laser is input into a second-stage thulium-doped optical fiber amplifier consisting of the wavelength division multiplexer, the 980nm pumping laser and the thulium-doped optical fiber for second-stage amplification, the output power reaches 400;
laser enters an optical frequency comb to generate an optical path and then is split by a coupler of 90:10, wherein 90% of laser enters a resonant cavity, the polarization state of the laser is controlled by a polarization controller before the laser enters an optical fiber to realize the polarization state of the laser as the optimal reaction, then the laser enters a section of 400m high nonlinear optical fiber to perform a four-wave mixing process, then the laser passes through the coupler of 90:10 again to realize the circulation effect, and finally 10% of laser is input into a spectrometer to be analyzed and observed.
The invention relates to an optical frequency comb generator based on optical parametric oscillation, which is characterized in that the generator not only realizes the generation of new wavelength with a wave band of 2 mu m, but also generates an optical frequency comb with a wave band wider than 140nm, adopts an all-fiber device, has the advantages of simple structure, stable performance, easy operation, small volume, low cost and the like, is easier to modularize and integrate, and is convenient to be applied in a photoelectric system as a light source in the future.
The optical frequency comb generator based on the optical parametric oscillation provides basic conditions for the generation of laser light sources with 2 mu m wave bands and intermediate infrared wave bands, and a core technology of the optical parametric oscillation determines the generated wave band range and the optical frequency comb interval size, so that the optical frequency comb generator has great application potential in the fields of laser medical treatment, sensing, radar, space communication and the like.
Drawings
FIG. 1 is a schematic diagram of a preferred optical frequency comb generator based on optical parametric oscillation;
FIG. 2 is a spectral plot of the optical frequency comb generated in FIG. 1;
FIG. 3 is a graph of the spectra generated in FIG. 1 over different wavelength ranges;
fig. 4 is a graph of laser stability corresponding to fig. 1.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the present invention can be more clearly and clearly understood.
Example 1
The present embodiment is a schematic diagram of a preferred structure of an optical frequency comb generator based on optical parametric oscillation, and specifically, as shown in fig. 1, includes three main optical paths corresponding to three dashed frames: the optical path is produced to pump light source circuit, thulium-doped optical fiber amplification optical path and optical frequency comb, pump light source circuit, thulium-doped optical fiber amplification optical path and optical frequency comb production optical path connect gradually.
The three main optical paths are a better component composition and optical path connection relationship as follows.
The pump light source circuit comprises a 1550nm pump laser 1-1, a wavelength division multiplexer 1-2, a single-mode thulium-doped optical fiber 1-3, a circulator 1-4, a polarization-maintaining thulium-doped optical fiber 1-5, a reflector 1-6, a polarization controller 1-7, a coupler 1-8, a Fabry-Perot tunable filter 1-9 and an isolator 1-10.
In the first part of the pump light source circuit, a 1550nm pump laser 1-1 serves as a transmitting end to output pump laser light, a1 port of the 1550nm pump laser 1-1 is connected with a b1 port of a wavelength division multiplexer 1-2, a b3 port of the wavelength division multiplexer 1-2 is connected with a c1 port of a single-mode thulium-doped optical fiber 1-3, a c2 port of the thulium-doped optical fiber 1-3 is connected with a d1 port of a circulator 1-4, a d2 port of the circulator 1-4 is connected with an e1 port of a polarization-preserving thulium-doped optical fiber 1-5, an e2 port of the polarization-doped optical fiber 1-5 is connected with an f1 port of a reflector 1-6, a d3 port of the circulator 1-4 is connected with a g1 port of a polarization controller 1-7, a g2 port of the polarization controller 1-7 is connected with an h1 port of a coupler 1-8, an h2 port of the coupler 1-8 is connected with a tunable Fabry-9 filter 1, an i2 port of the Fabry-Perot tunable filter 1-9 is connected with a b2 port of the wavelength division multiplexer 1-2 to form a loop, meanwhile, an h3 port of the coupler 1-8 is connected with a j1 port of the isolator 1-10, and j2 of the isolator 1-10 is used as an output port to be connected with a thulium-doped optical fiber amplification optical path.
The thulium-doped optical fiber amplification light path comprises a first-stage thulium-doped optical fiber amplifier (comprising a wavelength division multiplexer 2-1, a 980nm pump laser 2-2 and a thulium-doped optical fiber 2-3), an isolator 2-4 and a second-stage thulium-doped optical fiber amplifier (comprising a wavelength division multiplexer 2-5, a 980nm pump laser 2-6 and a thulium-doped optical fiber 2-7), and the output power of the first-stage thulium-doped optical fiber amplifier is about 100 mW. The output power of the second-stage thulium-doped optical fiber amplifier is about 400-500 mW. The length of the high nonlinear optical fiber 3-3 is 400 m. The zero dispersion wavelength of the highly nonlinear optical fiber 3-3 is 1550 nm.
The port k1 of the wavelength division multiplexer 2-1 in the second part thulium-doped optical fiber amplification optical path is connected with the laser output from the pump light source optical path, the port k2 of the wavelength division multiplexer 2-1 is connected with the port l1 of the 980nm pump laser 2-2, the port k3 of the wavelength division multiplexer 2-1 is connected with the port m1 of the thulium doped optical fiber 2-3, the port m2 of the thulium doped optical fiber 2-3 is connected with the port n1 of the isolator 2-4, the port n2 of the isolator 2-4 is connected with the port o1 of the wavelength division multiplexer 2-5, the port o2 of the wavelength division multiplexer 2-5 is connected with the port p1 of the 980nm pump laser 2-6, and the o3 port of the wavelength division multiplexer 2-5 is connected with the q1 port of the thulium-doped optical fiber 2-7, the q2 of the thulium-doped optical fiber 2-7 is used as the output port of the thulium-doped optical fiber amplifying optical path, and is connected with an optical frequency comb to generate an optical path.
The optical frequency comb generation optical path comprises a 90:10 coupler 3-1, a polarization controller 3-2, a high nonlinear optical fiber 3-3 and a spectrometer 3-4; in this embodiment: the splitting ratio of coupler 3-1 is 90: 10.
The r1 port of the coupler 3-1 in the third part optical frequency comb generation optical path is used as an access end to be connected with the thulium-doped optical fiber amplification optical path, the r3 port of the coupler 3-1 is connected with the s1 port of the polarization controller 3-2, the s2 port of the polarization controller 3-2 is connected with the t1 port of the high nonlinear optical fiber 3-3, the t2 port of the high nonlinear optical fiber is connected with the r4 port of the coupler 3-1 to form a loop, and finally the r2 port of the coupler 3-1 is connected with the u1 port of the spectrometer 3-4.
The optical frequency comb generator based on optical parametric oscillation is realized by the following steps:
the invention comprises three main light paths: a pump light source circuit, a thulium-doped optical fiber amplification circuit and an optical frequency comb generate a light path, firstly a 1550nm pump laser 1-1 in a first part of the pump light source circuit is used as a sending end to output pump laser, then the 1550nm laser is excited at a single-mode thulium-doped optical fiber 1-3 through a wavelength division multiplexer 1-2 to generate 2 mu m waveband laser, one end of a circulator 1-4 enables the laser to pass through a polarization-maintaining thulium-doped optical fiber 1-5 and then be reflected back to the light path through a reflecting mirror 1-6, then the other end of the circulator is output and connected with a polarization controller 1-7, the laser is connected with a Fabry-Perot adjustable filter 1-9 through a coupler 1-8 and is fed back to the echo division multiplexer 1-2 to form a loop, meanwhile, the output laser at the other end of the coupler 1-8 passes through an isolator 1-10, and the isolator 1-10, and is used as an output end to be connected with the thulium-doped optical fiber amplification optical path;
the laser output by the pumping light source optical path enters a thulium-doped optical fiber amplification optical path which is taken as an access end by a wavelength division multiplexer, firstly enters a first-stage thulium-doped optical fiber amplifier consisting of a wavelength division multiplexer 2-1, a 980nm pumping laser 2-2 and a thulium-doped optical fiber 2-3 for first-stage amplification, the average power of the laser output by the first-stage amplification is about 100mW, and is still too small to generate a four-wave mixing process, so that the laser is prevented from being reflected back to an original optical path to damage a device in the front by an isolator 2-4 protection optical path, then a second-stage thulium-doped optical fiber amplifier consisting of the wavelength division multiplexer 2-5, the 980nm pumping laser 2-6 and the thulium-doped optical fiber 2-7 is input for second-stage amplification, the output power reaches 400-500mW, and the output;
the laser enters an optical frequency comb to generate an optical path, then is split by a coupler 3-1 of 90:10, wherein 90% of the laser enters a resonant cavity, the polarization state of the laser is controlled by a polarization controller 3-2 before the laser enters an optical fiber to realize the polarization state of the laser as the optimal reaction, then the laser enters a section of 400m high nonlinear optical fiber 3-3 to carry out a four-wave mixing process, then passes through the coupler 3-1 of 90:10 again to realize the circulation effect, and finally 10% of the laser is input into an optical spectrometer 3-4 to be analyzed and observed.
Briefly summarized the procedure is as follows:
1. the pumping laser is an adjustable thulium-doped fiber laser;
2. the output pump laser is subjected to primary and secondary amplification through two thulium-doped optical fiber amplifiers;
3. the amplified laser undergoes a four-wave mixing process in the highly nonlinear fiber of the resonant cavity to produce a 2 μm band optical frequency comb.
The invention utilizes the four-wave mixing principle, utilizes the interaction of the pump light and the pump light to generate the signal light and the idler frequency light to realize the wavelength conversion, and utilizes the interaction of the pump light and the signal light or the interaction of the pump light and the idler frequency light or the idler frequency light and the signal light to generate new signal light and idler frequency light, thereby generating the optical frequency comb. The optical parametric oscillator based on four-wave mixing can provide the advantages of high gain, any gain wave band and the like.
The invention not only realizes the generation of new wavelength of 2 mu m wave band, but also generates optical frequency comb with wave band wider than 140nm, and adopts all-fiber device, and has the advantages of simple structure, stable performance, easy operation, small volume, low cost, etc.
While the preferred embodiments and principles of this invention have been described in detail, it will be apparent to those skilled in the art that variations may be made in the embodiments based on the teachings of the invention and such variations are considered to be within the scope of the invention.
Claims (1)
1. An optical frequency comb generator based on optical parametric oscillation is characterized by comprising a pump light source circuit, a thulium-doped optical fiber amplification circuit and an optical frequency comb generation circuit, wherein the pump light source circuit, the thulium-doped optical fiber amplification circuit and the optical frequency comb generation circuit are sequentially connected;
the pump light source optical path includes: the tunable optical fiber laser device comprises a 1550nm pump laser (1-1), a first wavelength division multiplexer (1-2), a single-mode thulium-doped optical fiber (1-3), a circulator (1-4), a first polarization controller (1-7), a first coupler (1-8) and a tunable filter (1-9), wherein the pump laser (1-1), the first wavelength division multiplexer (1-2), the single-mode thulium-doped optical fiber (1-3), the circulator (1-4), the first polarization controller (1-7), the first coupler (1-8) and the tunable filter (1-9) are sequentially connected, and the tunable filter (1-9) is connected with the first wavelength division multiplexer (1-2); the optical fiber polarization maintaining thulium-doped optical fiber laser is characterized by further comprising a polarization maintaining thulium-doped optical fiber (1-5) and a reflector (1-6), wherein the circulator (1-4), the polarization maintaining thulium-doped optical fiber (1-5) and the reflector (1-6) are sequentially connected; the optical fiber amplifier further comprises a first isolator (1-10), wherein the first coupler (1-8) is connected with the first isolator (1-10), and the first isolator (1-10) is used as an output end of a pump light source optical path and connected with the thulium-doped optical fiber amplification optical path;
the thulium-doped optical fiber amplification light path comprises: the first-stage thulium-doped optical fiber amplifier, the second isolator (2-4) and the second-stage thulium-doped optical fiber amplifier are sequentially connected; the primary thulium-doped optical fiber amplifier comprises a second wavelength division multiplexer (2-1), a first 980nm pump laser (2-2) and a first thulium-doped optical fiber (2-3), wherein the first 980nm pump laser (2-2), the second wavelength division multiplexer (2-1) and the first thulium-doped optical fiber (2-3) are sequentially connected, and the second wavelength division multiplexer (2-1) is connected with the output end of a pump light source circuit; the second-stage thulium-doped optical fiber amplifier comprises a third wavelength division multiplexer (2-5), a second 980nm pump laser (2-6) and a second thulium-doped optical fiber (2-7), wherein the second 980nm pump laser (2-6), the third wavelength division multiplexer (2-5) and the second thulium-doped optical fiber (2-7) are sequentially connected, the third wavelength division multiplexer (2-5) is connected with the second isolator (2-4), and the second thulium-doped optical fiber (2-7) serves as an output end of a thulium-doped optical fiber amplification optical path and is connected with the optical frequency comb through an optical path;
the optical frequency comb generation optical path includes: the optical fiber amplifier comprises a third coupler (3-1), a second polarization controller (3-2), a high nonlinear optical fiber (3-3) and a spectrometer (3-4), wherein the input end and the output end of the third coupler (3-1) are respectively connected with the output end of the thulium-doped optical fiber amplification optical path and the spectrometer (3-4); the third coupler (3-1), the second polarization controller (3-2) and the high nonlinear optical fiber (3-3) are connected end to form a loop;
the splitting ratio of the first coupler (1-8) is 70: 30;
the output power of the first-stage thulium-doped optical fiber amplifier is 100 mW;
the output power of the second-stage thulium-doped optical fiber amplifier is 400-500 mW;
the length of the high nonlinear optical fiber (3-3) is 400 m; and/or the high non-linear optical fiber (3-3) has a zero dispersion wavelength of 1550 nm; and/or the splitting ratio of the third coupler (3-1) is 90: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782495.6A CN108879302B (en) | 2018-07-17 | 2018-07-17 | Optical frequency comb generator based on optical parametric oscillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810782495.6A CN108879302B (en) | 2018-07-17 | 2018-07-17 | Optical frequency comb generator based on optical parametric oscillation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108879302A CN108879302A (en) | 2018-11-23 |
| CN108879302B true CN108879302B (en) | 2021-05-07 |
Family
ID=64302558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810782495.6A Active CN108879302B (en) | 2018-07-17 | 2018-07-17 | Optical frequency comb generator based on optical parametric oscillation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108879302B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830881A (en) * | 2019-02-03 | 2019-05-31 | 深圳市硅光半导体科技有限公司 | A kind of optical frequency com generator based on silicon nitride |
| CN111262122B (en) * | 2020-01-20 | 2020-12-25 | 南京南智先进光电集成技术研究院有限公司 | Optical frequency comb generating system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656396A (en) * | 2009-09-11 | 2010-02-24 | 江西师范大学 | Tunable multi-wavelength optical fibre laser with ultra-density wavelength interval based on semiconductor optical amplifier |
| CN107045248A (en) * | 2017-06-14 | 2017-08-15 | 上海朗研光电科技有限公司 | A kind of nonlinear optical fiber amplified broad band four-wave mixing generation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681452A (en) * | 2017-10-05 | 2018-02-09 | 南京汇邦智能科技有限公司 | A kind of anemobiagraph long wavelength fiber lasers of 678nm1192nm2384nm1607nm six |
-
2018
- 2018-07-17 CN CN201810782495.6A patent/CN108879302B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656396A (en) * | 2009-09-11 | 2010-02-24 | 江西师范大学 | Tunable multi-wavelength optical fibre laser with ultra-density wavelength interval based on semiconductor optical amplifier |
| CN107045248A (en) * | 2017-06-14 | 2017-08-15 | 上海朗研光电科技有限公司 | A kind of nonlinear optical fiber amplified broad band four-wave mixing generation device |
Non-Patent Citations (1)
| Title |
|---|
| "Widely wavelength-tunable single-longitudinal-mode thulium-doped fiber laser incorporating a saturable absorber";TaoceYin et al.;《Asia Communications and Photonics Conference》;20171231;1-2页及附图1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108879302A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7224518B2 (en) | Fiber-optic amplification of light pulses | |
| CN101924319B (en) | All-fiber structure laser system capable of generating high-energy femtosecond pulse | |
| US11579512B2 (en) | Device and method for generating laser pulses | |
| JP2004227011A (en) | Apparatus and method for generating high output optical pulse | |
| CN104201546A (en) | Fiber laser system with narrow-line-width and high-peak power pulse output | |
| CN102608825B (en) | Method and system for realizing multi-frequency optical comb | |
| CN110829164B (en) | All-fiber ultrashort pulse light source capable of simultaneously generating soliton and noise-like pulses | |
| CN111064069A (en) | All-fiber femtosecond chirped pulse amplification system | |
| CN106025779A (en) | Astronomical optical frequency comb system based on harmonic mode-locked fiber laser device | |
| CN112600061A (en) | Tunable Raman fiber laser | |
| CN108879302B (en) | Optical frequency comb generator based on optical parametric oscillation | |
| CN112117629A (en) | All-fiber high-order mode Brillouin erbium-doped laser based on acousto-optic device | |
| CN102044827B (en) | Optical fiber laser based on frequency pulling effect | |
| CN113572003B (en) | Channel interval tunable multi-wavelength fiber laser based on double Sagnac rings | |
| CN103199415B (en) | The super continuous spectrums Photonic Crystal Fiber Lasers of stability contorting | |
| CN211579185U (en) | All-fiber femtosecond chirped pulse amplification system | |
| CN209200363U (en) | Sub- THz high power picosecond optical fiber laser based on MOPA structure | |
| CN204118459U (en) | High power tunable pulse optical fiber | |
| CN113206425A (en) | Dissipative soliton resonance fiber laser based on hybrid mode locking | |
| US8792158B2 (en) | 2 micron femtosecond fiber laser | |
| CN206313278U (en) | A kind of microwave signal generator | |
| CN215579525U (en) | All-fiber femtosecond seed laser based on large mode field fiber | |
| CN208849224U (en) | THz high repetition frequency high power femto second optical fiber laser based on dispersive wave | |
| CN208433630U (en) | A kind of single longitudinal mode wideband adjustable Brillouin laser | |
| CN213905814U (en) | Tunable Raman fiber laser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |