CN108958008A - A kind of mercury ion microwave clock light path system and the method for reducing optical noise - Google Patents
A kind of mercury ion microwave clock light path system and the method for reducing optical noise Download PDFInfo
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- CN108958008A CN108958008A CN201810858874.9A CN201810858874A CN108958008A CN 108958008 A CN108958008 A CN 108958008A CN 201810858874 A CN201810858874 A CN 201810858874A CN 108958008 A CN108958008 A CN 108958008A
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- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
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Abstract
This application discloses a kind of mercury ion microwave clock light path system and the method for reducing optical noise, system includes mercury lamp, mercury ion imprison room, further includes: spherical lens, at least one side duplicature plane mirror；Reflectivity r of the duplicature plane mirror to the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio be greater than or equal to 9.6；The light that mercury lamp issues successively passes through spherical lens collimation, again through the reflection of duplicature plane mirror, subsequently into mercury ion imprison room, imprisons the mercury ion in room with mercury ion and interacts.Method of the invention comprising the steps of: the light that mercury lamp issues is collimated by parallel rays using spherical lens；Optical noise is inhibited using the parallel rays that at least one side duplicature plane mirror projects the spherical lens；The light of the duplicature plane mirror multiple reflections is input to mercury ion imprison room.The present invention improves the inhibition ratio of the light of mercury lamp spectrum medium wavelength 194nm and 253nm, reduces the optical noise of system.
Description
Technical field
This application involves the light path systems and reduction light of a kind of light path system more particularly to a kind of mercury ion microwave clock to make an uproar
The method of sound.
Background technique
Mercury ion microwave clock has the advantages that small in size, Stability index is high.In satellite navigation, space exploration, keeps time and award
When, the fields such as metering have a wide range of applications.The stability for the mercury ion clock that U.S. JPL (jet power laboratory) is developed at present
The level for having had reached 4E-14/ τ 1/2 has been higher than the level of current active hydrogen atomic clock.Mercury ion microwave clock uses
The spectrum of 194nm carries out pumping, the atomic transition of high level under the microwave action of 40.5GHz to the hyperfine energy level of mercury ion
To low-lying level, fluorescence signal is generated, is detected system acquisition.When microwave signal frequency frequency sweep in a certain range, optical detection
System can obtain Ramsey signal, and standard signal source is locked on Ramsey signal to the output letter that can obtain superregulated degree
Number.
The light path system of wavelength 194nm is the important component of mercury ion microwave clock, and radio frequency mercury lamp is mostly used at present
The spectrum for generating 194nm has the advantages that small in size, high reliablity is continuous type using laser using mercury lamp ratio, still
The spectrum that mercury lamp generates is more miscellaneous, not only there is the spectral line of 194nm, also the spectral line of more other wavelength, wherein the spectral line of 253nm
It is that amplitude is maximum, it is nearly more than 50 times bigger than the intensity of 194nm.
J.D.Prestage of JPL et al. (" The JPL Trapped Ion Frequency Standard
Development " 19th PTTI, 1987；"Ultra-Stable Hg+ Trapped Ion Frequency Standard
Development " 22th PTTI, 1990；) in such a way that a cylindrical surface is reflected, the spectral line of 253nm in mercury lamp is carried out
Inhibit, improves the transmission ratio of the light of wavelength 194nm, reduce optical noise, but to the light and wavelength of wavelength 194nm
The inhibition of the light of 253nm is relatively low, about 10:1.
The prior art there is a problem of inhibiting relatively low to spuious spectrum, and system optical noise is caused not inhibit effectively.
Summary of the invention
In view of the above problems, a kind of method that the present invention proposes mercury ion microwave clock light path system and reduces optical noise.
A kind of mercury ion microwave clock light path system that the application proposes, including mercury lamp, mercury ion imprison room, further includes:
Spherical lens, at least one side duplicature plane mirror；
Reflectivity r of the duplicature plane mirror to the light of wavelength 194nm1With the reflection of the light to wavelength 253nm
Rate r2Ratio be greater than or equal to 9.6；
The light that mercury lamp issues successively passes through spherical lens collimation, again through the reflection of duplicature plane mirror, subsequently into mercury
Mercury ion in ion-beam cleaning room, with mercury ion imprison room interacts.
Preferably, the mercury ion microwave clock light path system further includes shrink beam lens group；The shrink beam lens group, by institute
It states the parallel rays shrink beam of duplicature plane mirror multiple reflections and is input to mercury ion imprison room.
Preferably, the shrink beam lens group is made of cylindrical lenses or is made of prismatic lenses.
Preferably, the duplicature plane mirror is 96% to the reflectivity of the light of wavelength 194nm, to wavelength 253nm
Light reflectivity be 10%.
Preferably, the parallel rays that the duplicature plane mirror and the spherical lens project is at 45 degree of angles.
Preferably, the quantity of the duplicature plane mirror is N, and N is less than or equal to 4, what the spherical lens projected
The normal of light and lower face duplicature plane mirror that parallel rays is reflected through the duplicature plane mirror is at 45 degree
Angle.
The present invention also provides a kind of methods that mercury ion microwave clock reduces optical noise with light path system, comprising the following steps:
The light that mercury lamp issues is collimated by parallel rays using spherical lens；
Optical noise, institute are inhibited using the parallel rays that at least one side duplicature plane mirror projects the spherical lens
Duplicature plane mirror is stated to the reflectivity r of the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio it is big
In or equal to 9.6；
The light of the duplicature plane mirror multiple reflections is input to mercury ion imprison room.
Further, further comprising the steps of: to be put down using shrink beam lens group by what the duplicature plane mirror reflected
Row light shrink beam.
Further, the quantity N of the duplicature plane mirror meets [logrR]≤N≤4, wherein r is the bilayer
Reflectivity r of the membrane plane reflecting mirror to the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio, R is described
The inhibition ratio of light of the mercury ion microwave clock light path system to wavelength 194nm and the light to wavelength 253nm.
Further, when N is equal to 2 or 3 or 4, the parallel rays that the spherical lens projects is through the double-deck membrane plane
The light of reflecting mirror reflection and the normal of lower face duplicature plane mirror are at 45 degree of angles.
At least one above-mentioned technical solution used in the embodiment of the present invention can reach it is following the utility model has the advantages that
The present invention makes mercury ion microwave clock light path system to miscellaneous by using the high duplicature plane mirror for inhibiting ratio
Astigmatism spectrum has higher inhibition ratio, can reduce the noise of system, improves the signal-to-noise ratio of detectable signal；The present invention is using double-deck
The one or many reflection technologies of membrane plane reflecting mirror greatly improve the light and wavelength 253nm of mercury lamp spectrum medium wavelength 194nm
Light inhibition ratio, reduce the optical noise of system, for improve system signal-to-noise ratio play the role of it is conclusive.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of specific embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the specific embodiment comprising shrink beam lens group of the present invention；
Fig. 3 is a kind of structural schematic diagram of specific embodiment comprising more duplicature plane mirrors.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
The present invention is using the high one or many reflection technologies of duplicature plane mirror for inhibiting ratio, and light is by mercury lamp emission
Out, it successively is collimated into parallel rays by spherical lens, carries out inhibition optical noise by least one side duplicature plane mirror,
Most preferably, then through shrink beam lens group to parallel rays shrink beam is carried out, finally reaches mercury ion imprison room and mercury ion imprison is indoor
Mercury ion occur interaction achieve the purpose that reduce optical noise.
Below in conjunction with attached drawing, the technical scheme provided by various embodiments of the present application will be described in detail.
Fig. 1 gives a kind of structural schematic diagram of specific embodiment of the present invention, including mercury lamp 1, mercury ion imprison room 5,
Further include: spherical lens 2, the first duplicature plane mirror 31 and the second duplicature plane mirror 32；
Wherein, the reflectivity r of the light of 31,32 couples of wavelength 194nm of the first, second duplicature plane mirror1With it is right
The reflectivity r of the light of wavelength 253nm2Ratio be greater than or equal to 9.6；
The light that mercury lamp 1 is launched is collimated into parallel rays by the spherical lens 2；First, second duplicature is flat
Face reflecting mirror 31,32, for reflecting the parallel rays；
The light that mercury lamp 1 issues successively passes through the collimation of spherical lens 2, again through the first duplicature plane mirror 31 and second pair
The reflection of tunic plane mirror 32 imprisons room 5 subsequently into mercury ion, and phase interaction occurs with the mercury ion in mercury ion imprison room
With.
Mercury lamp 1 as described above is mercury lamp mercury lamp, and the focus of spherical lens 2 is located at the luminous flat of mercury lamp mercury lamp 1, mercury lamp
1 light issued is collimated after spherical lens 2, and the light after collimation is approximate parallel rays.First duplicature is flat
Parallel rays after face reflecting mirror 31 and collimation is at 45 degree of angles, after the reflection of the first duplicature plane mirror 31, reflected light
The normal of line and the first duplicature plane mirror 31 is at 45 degree of angles, with the normal with the second duplicature plane mirror 32 at 45
Degree angle be incident to the second duplicature plane mirror 32, after the second duplicature plane mirror 32 parallel rays enter mercury from
Son imprison room 5, interacts with the mercury ion of imprison.
Fig. 2 gives a kind of structural schematic diagram of specific embodiment of the present invention, including mercury lamp 1, mercury ion imprison room 5,
Further include: spherical lens 2, the first duplicature plane mirror 31 and the second duplicature plane mirror 32, shrink beam lens group 4；
The light that mercury lamp 1 is launched is collimated into parallel rays by the spherical lens 2；The described first double-deck membrane plane is anti-
Mirror 31 and the second duplicature plane mirror 32 are penetrated, for reflecting the parallel rays；The shrink beam lens group 4, will be described double
The parallel rays shrink beam of tunic plane mirror multiple reflections is simultaneously input to mercury ion imprison room 5；
The light that mercury lamp issues successively passes through the collimation of spherical lens 2, again through the first duplicature plane mirror 31 and second pair
Tunic plane mirror 32 reflection, again through 4 shrink beam of shrink beam lens group, finally enter mercury ion imprison room 5, with mercury ion imprison room
Mercury ion in 5 interacts.
It is to be appreciated that the focus of spherical lens 2 is located at the luminous flat of mercury lamp 1, the light that mercury lamp 1 issues is saturating by spherical surface
It is collimated after mirror 2, the light after collimation is approximate parallel rays.After first duplicature plane mirror 31 and collimation
Parallel rays is at 45 degree of angles, and after the reflection of the first duplicature plane mirror 31, reflection light and the first double-deck membrane plane are anti-
The normal of mirror 31 is penetrated into 45 degree of angles, the second duplicature is incident at 45 degree of angles with the normal with the second duplicature plane mirror 32
Plane mirror 32, parallel rays enters shrink beam lens group 4, shrink beam lens group 4 after the second duplicature plane mirror 32
Shrink beam can be carried out to incident parallel rays, light imprisons room 5 subsequently into mercury ion, carries out with the mercury ion of imprison mutual
Effect.
The reflectivity r of duplicature plane mirror in the present embodiment to the light of wavelength 194nm1With to wavelength 253nm's
The reflectivity r of light2Ratio be greater than or equal to 9.6.For example, reflectivity of the duplicature plane mirror to the light of wavelength 194nm
It is 96%, the reflectivity to the light of wavelength 253nm is 10%.The light of wavelength 194nm is with wavelength 253nm's after above-mentioned optical path
The inhibition ratio of light has reached 92:1, realizes the substantially inhibition to optical noise.
Shrink beam lens group 4 in the present embodiment can be made of 2 different lens of radius of curvature, such as by 2 groups of columns
Lens are formed or are made of 2 groups of prismatic lenses.
Installation and adjusting are followed the steps below when use: 1) above-mentioned each component being placed on optical platform or assembling
On bottom plate, and it is fixed using respectively suitable mirror holder or tooling.2) distance for adjusting spherical lens 2 and mercury lamp 1, makes spherical surface
The focus of lens 2 is located at the luminous flat of mercury lamp 1, then the emergent light of spherical lens 2 is close to collimated light beam.3) it is flat to adjust duplicature
The position of face reflecting mirror 31 and angle, and tested with transmitting light of the spectrometer to the first duplicature plane mirror 31, root
Whether 45 degree of incident light for calculating the first duplicature plane mirror 31 according to test position are adjusted in place, and to wavelength 194nm
Light and the inhibition ratio of light of wavelength 253nm calculated；Calculation are as follows: the light of wavelength 194nm and the light of wavelength 253nm exist
Beam intensity ratio in spectrometer；The position of first duplicature plane mirror 31 adjust it is suitable after be fixed, prevent the device from
It is subjected to displacement due to vibrating by a small margin.4) position and the angle of the second duplicature plane mirror 32 are adjusted, and uses spectrometer
It is tested, calculates the light of the light and wavelength 253nm by the emergent light medium wavelength 194nm of the second duplicature plane mirror 32
Inhibition ratio.5) position and the elevation angle for adjusting shrink beam lens group 4, make the transmitted light of shrink beam lens group 4 and front light beam
Center in a plane, and can be incident on mercury ion imprison room 5 in parallel.
Such as above-described embodiment, if the reflectivity of the light of 31,32 couples of wavelength 194nm of duplicature plane mirror is not high enough,
Or it is not low enough to the reflectivity of the light of wavelength 253nm, duplicature plane mirror can be continuously added, according to above-mentioned debugging step
Continue to debug.
To inhibit than it is of less demanding in the case where, a face duplicature plane mirror can be used, it is double-deck using one side
Light of the mercury ion microwave clock light path system to wavelength 194nm of membrane plane reflecting mirror and the inhibition ratio of the light to wavelength 253nm
Reach 96:10.
Fig. 3 gives a kind of structural schematic diagram of specific embodiment of the present invention, the mercury ion microwave clock light path system
Room 5 is imprisoned including mercury lamp 1, mercury ion, further includes: spherical lens 2, the first duplicature plane mirror 31, the second duplicature are flat
Face reflecting mirror 32, third duplicature plane mirror 33, shrink beam lens group 4；Light is issued by mercury lamp 1 successively passes through spherical lens
2, the first duplicature plane mirror 31, the second duplicature plane mirror 32, third duplicature plane mirror 33, shrink beam are saturating
Microscope group 4, mercury ion imprison room 5, finally interact with the mercury ion in mercury ion imprison room 5.
Wherein, the light that mercury lamp 1 is launched is collimated into parallel rays by the spherical lens 2；First duplicature is flat
Face reflecting mirror 31, the second duplicature plane mirror 32 and third duplicature plane mirror 33, for reflecting the directional light
Line；The shrink beam lens group 4 by the parallel rays shrink beam of the duplicature plane mirror multiple reflections and is input to mercury ion
Imprison room 5.
Mercury lamp 1 as described above is mercury lamp mercury lamp, and the focus of spherical lens 2 is located at the luminous flat of mercury lamp mercury lamp 1, mercury lamp
1 light issued is collimated after spherical lens 2, and the light after collimation is approximate parallel rays；First duplicature is flat
Parallel rays after face reflecting mirror 31 and collimation is at 45 degree of angles, after the reflection of the first duplicature plane mirror 31, reflected light
The normal of line and the first duplicature plane mirror 31 is at 45 degree of angles, with the normal with the second duplicature plane mirror 32 at 45
Degree angle is incident to the second duplicature plane mirror 32, and parallel rays enters third after the second duplicature plane mirror 32
Duplicature plane mirror 33, the emergent ray of the second duplicature plane mirror 32 and third duplicature plane mirror 33 at
45 degree of angles are incident to third duplicature plane mirror 33, and parallel rays enters contracting after third duplicature plane mirror 33
Beam lens group 4, shrink beam lens group 4 can carry out shrink beam to incident beam, and light imprisons room 5 subsequently into mercury ion, with imprison
Mercury ion interact.
If reflectivity of the duplicature plane mirror to the light of wavelength 194nm is 96% i.e. r1, to the light of wavelength 253nm
Reflectivity is 10% i.e. r2, then after 3 secondary reflections, light and wavelength of the mercury ion clock microwave system to wavelength 194nm
The inhibition of the light of 253nm is compared for r1 3/r2 3, that is, can reach 885:1.If the inhibition is compared, it is impossible to meet system requirements, Ke Yiji
The continuous quantity for increasing reflecting mirror.If the duplicature plane mirror quantity used is N, after continuing assembling, the light of 194nm with
The inhibition of the light of 253nm is compared for r1 N/r2 N。
Mercury ion microwave clock light path system based on the above embodiment, the method that may be implemented to reduce optical noise, the party
Method the following steps are included:
The light that mercury lamp issues is collimated by parallel rays using spherical lens；
Optical noise, the duplicature are inhibited using the parallel rays that duplicature plane mirror projects the spherical lens
Reflectivity r of the plane mirror to the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio be greater than or equal to
9.6；
The light of the duplicature plane mirror multiple reflections is input to mercury ion imprison room.
Preferably, further comprising the steps of: to be reflected the duplicature plane mirror using shrink beam lens group parallel
Light shrink beam is simultaneously input to mercury ion imprison room.
Preferably, the quantity N of the duplicature plane mirror meets [logrR]≤N≤4, wherein r is the duplicature
Reflectivity r of the plane mirror to the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio, R be the mercury
The inhibition ratio of light of the ion microwave clock light path system to wavelength 194nm and the light to wavelength 253nm.
Preferably, when N is equal to 2,3 or 4, the parallel rays that the spherical lens projects is through the duplicature plane reflection
The light of mirror reflection and the normal of lower face duplicature plane mirror are at 45 degree of angles.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method of element, commodity or equipment.
The above description is only an example of the present application, is not intended to limit this application.For those skilled in the art
For, various changes and changes are possible in this application.All any modifications made within the spirit and principles of the present application are equal
Replacement, improvement etc., should be included within the scope of the claims of this application.
Claims (10)
1. a kind of mercury ion microwave clock light path system, including mercury lamp, mercury ion imprison room, which is characterized in that further include: spherical surface
Lens, at least one side duplicature plane mirror；
Reflectivity r of the duplicature plane mirror to the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2's
Ratio is greater than or equal to 9.6；
The light that mercury lamp issues successively passes through spherical lens collimation, again through the reflection of duplicature plane mirror, subsequently into mercury ion
Room is imprisoned, is interacted with the mercury ion in mercury ion imprison room.
2. mercury ion microwave clock light path system as described in claim 1, which is characterized in that the mercury ion microwave clock optical path
System further includes shrink beam lens group；The shrink beam lens group, by the parallel rays of the duplicature plane mirror multiple reflections
Shrink beam is simultaneously input to mercury ion imprison room.
3. mercury ion microwave clock light path system as described in claim 1, which is characterized in that the duplicature plane mirror pair
The reflectivity of the light of wavelength 194nm is 96%, and the reflectivity to the light of wavelength 253nm is 10%.
4. light path system as described in claim 1, which is characterized in that the duplicature plane mirror is penetrated with the spherical lens
Parallel rays out is at 45 degree of angles.
5. mercury ion microwave clock light path system as described in claim 1, which is characterized in that the duplicature plane mirror
Quantity is N, and N is less than or equal to 4, the light that the parallel rays that the spherical lens projects is reflected through the duplicature plane mirror
The normal of line and lower face duplicature plane mirror is at 45 degree of angles.
6. mercury ion microwave clock light path system as claimed in claim 2, which is characterized in that the shrink beam lens group is saturating by column
Microscope group is formed at or by prismatic lenses.
7. a kind of method that mercury ion microwave clock reduces optical noise with light path system, which comprises the following steps:
The light that mercury lamp issues is collimated by parallel rays using spherical lens；
Optical noise is inhibited using the parallel rays that at least one side duplicature plane mirror projects the spherical lens, it is described double
Reflectivity r of the tunic plane mirror to the light of wavelength 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio be greater than or
Equal to 9.6；
The light of the duplicature plane mirror multiple reflections is input to mercury ion imprison room.
8. the method that mercury ion microwave clock as claimed in claim 7 reduces optical noise with light path system, spy is just, further include
Following steps: the parallel rays shrink beam for being reflected the duplicature plane mirror using shrink beam lens group.
9. the method that mercury ion microwave clock as claimed in claim 7 or 8 reduces optical noise with light path system, which is characterized in that
The quantity N of the duplicature plane mirror meets [logrR]≤N≤4, wherein r is the duplicature plane mirror to wave
The reflectivity r of the light of long 194nm1With the reflectivity r of the light to wavelength 253nm2Ratio, R be the mercury ion microwave clock use up
The inhibition ratio of light of the road system to wavelength 194nm and the light to wavelength 253nm.
10. the method that mercury ion microwave clock as claimed in claim 9 reduces optical noise with light path system, which is characterized in that work as N
When equal to 2,3 or 4, light that the parallel rays that the spherical lens projects is reflected through the duplicature plane mirror with it is next
The normal of face duplicature plane mirror is at 45 degree of angles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810858874.9A CN108958008B (en) | 2018-07-31 | 2018-07-31 | Light path system for mercury ion microwave clock and method for reducing optical noise |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858874.9A CN108958008B (en) | 2018-07-31 | 2018-07-31 | Light path system for mercury ion microwave clock and method for reducing optical noise |
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| CN108958008A true CN108958008A (en) | 2018-12-07 |
| CN108958008B CN108958008B (en) | 2020-06-30 |
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| CN1588148A (en) * | 2004-09-09 | 2005-03-02 | 上海交通大学 | Tunable wave length selection/locking light dense wave division complex combining wave/channel splitting filter |
| CN101846965A (en) * | 2010-04-28 | 2010-09-29 | 北京大学 | Method for pumping rubidium bubble for outputting standard frequency by lamp pump rubidium gas laser and rubidium atomic clock |
| CN102317815A (en) * | 2011-07-13 | 2012-01-11 | 华为技术有限公司 | Spectral device, optical multiplexer and method, optical add-drop multiplexer |
| CN205656134U (en) * | 2016-04-08 | 2016-10-19 | 苏州启翔仪器科技有限公司 | Laser induction punctures spectral analysis appearance |
| CN107561916A (en) * | 2017-10-10 | 2018-01-09 | 兰州空间技术物理研究所 | A kind of rubidium atom microwave clock based on faraday's laser pumping |
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2018
- 2018-07-31 CN CN201810858874.9A patent/CN108958008B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588148A (en) * | 2004-09-09 | 2005-03-02 | 上海交通大学 | Tunable wave length selection/locking light dense wave division complex combining wave/channel splitting filter |
| CN101846965A (en) * | 2010-04-28 | 2010-09-29 | 北京大学 | Method for pumping rubidium bubble for outputting standard frequency by lamp pump rubidium gas laser and rubidium atomic clock |
| CN102317815A (en) * | 2011-07-13 | 2012-01-11 | 华为技术有限公司 | Spectral device, optical multiplexer and method, optical add-drop multiplexer |
| CN205656134U (en) * | 2016-04-08 | 2016-10-19 | 苏州启翔仪器科技有限公司 | Laser induction punctures spectral analysis appearance |
| CN107561916A (en) * | 2017-10-10 | 2018-01-09 | 兰州空间技术物理研究所 | A kind of rubidium atom microwave clock based on faraday's laser pumping |
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