CN104948956B - Conversion of white light fiber illumination device on a kind of multicomponent glass - Google Patents
Conversion of white light fiber illumination device on a kind of multicomponent glass Download PDFInfo
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- CN104948956B CN104948956B CN201510348639.3A CN201510348639A CN104948956B CN 104948956 B CN104948956 B CN 104948956B CN 201510348639 A CN201510348639 A CN 201510348639A CN 104948956 B CN104948956 B CN 104948956B
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- multicomponent glass
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
Abstract
The invention discloses conversion of white light fiber illumination device on a kind of multicomponent glass, including 980nm pump lasers, 980nm laser Optic transmission fibers, optical fibre light splitting and coupled system, and spirally-wound lateral emitting multicomponent glass optical fiber.980nm pump lights enter the two ends of the multicomponent glass optical fiber of spirally-wound lateral emitting after Transmission Fibers long range propagation by optical fibre light splitting with coupled system.The fiber core is tellurate multicomponent glass, and covering is the multicomponent glass with tellurate as one or more rare earth ion of substrate Uniform Doped as the centre of luminescence.980nm pump lights can occur uniform leakage to covering when transmitting by the tellurate glass fibre core of refractive index inverse-guiding, so as to excite the rare earth ion in covering multicomponent glass, realize that upconversion lights.By adjusting pump light intensities, the component of rare earth ion and doping content so as to which the light for sending forms white light, realizes that white light is uniformly exported, reaches comfortably soft illuminating effect.
Description
Technical field
The present invention relates to a kind of fiber illumination device, more particularly to one kind can long-distance transmissions pump light excite rare earth doped
The multicomponent tellurate glass up-conversion luminescence optical fiber of ion, belongs to optical fibre illumination technical field.
Background technology
Lateral emitting optical fiber can apply to the illumination in the place for needing photodetachment such as inflammable, explosive, and this illumination
Do not disturbed by electromagnetism, can also be applied to nuclear magnetic resonance, NMR, radar control room etc. has the Code in Hazardous Special Locations of electromagnetic shielding requirements, in addition
The illumination of great personalization can also be carried out, such as decorated, shown exterior feature etc., therefore fiber illumination device has certain practical value.
Lateral emitting optical fiber be optical fiber itself as luminous body, a flexible Rhizoma Dioscoreae (peeled) can be formed.Due to every kind of optical fiber material
There is different degrees of dispersion to transmission light in material, if directly transmitting visible ray, that is, be input into is the white light of broad band, with
The transmission of optical fiber, necessarily occurs the change of color.Therefore, this type optical fiber broad band of transmission at a distance typically relatively difficult to achieve is more
Mould white light, is not suitable for the Code in Hazardous Special Locations white-light illuminating for needing high color rendering index (CRI) yet.At present, most used by optical fibre illumination field
It is plastic optical fiber.In the optical fiber of unlike material, the cost of manufacture of plastic optical fiber is generally the least expensive, and often only silica fibre is fabricated to
This 1/10th.But any type of ultraviolet, can all cause the degraded of plastic optical fiber material and aging including daylight.Cause
This, it is necessary to develop a kind of emitting white light and non-aging novel illumination optical fiber.Multicomponent glass optical fiber is exactly this type,
Which can overcome the defect of plastic optical fiber, and have the gain bandwidth of several times higher than silica fibre and higher rare earth ion doped dense
Degree.
Typical lateral emitting optical fiber mainly has two kinds：A kind of have banding light scattering reflectance coating, wherein light scattering reflection
Film is attached in a part for the core periphery in core length direction, but light-diffusing reflection film generally has and caused by diffuse-reflectance
Low-transmittance；Another kind has optical scatter, the light being transmitted into from fibre core in clad in the clad of core periphery
Line is wrapped by layer scattering, then leaks.But as the reasons such as environmental vibration easily make core/covering in intersection genetic horizon point
From detached region light scattering reduces, and so as to cause the appearance of so-called " dark defect ", causes optical fiber uneven luminous.
(the TZN with tellurate as substrate involved in the present invention:TeO2-ZnO-Na2O) adulterate one or more rare earth ion
Multicomponent glass optical fiber, its variations in refractive index scope is more quartzy much bigger, has in visible ray and near infrared band higher saturating
Cross rate.And there is relatively low phonon energy due to multicomponent glass optical fiber so that some rare earth ions are sent out in telluric acid base status
Light efficiency is very high.Therefore, the white light illumination device that the multicomponent glass optical fiber based on tellurate host doped rare earth ion builds
It is expected to provide lighting source for Code in Hazardous Special Locations.
Content of the invention
Technical problem：It is an object of the invention to provide conversion of white light fiber illumination device on a kind of multicomponent glass, by
The pump light that 980nm laser instrument sends carries out upper energy level after optical fiber long-distance transmissions to lateral emitting multicomponent glass optical fiber
Conversion is luminous, realizes the white-light illuminating of high color rendering index (CRI).
Technical scheme：On the multicomponent glass of the present invention, conversion of white light fiber illumination device includes：980nm pumping lasers
Device, 980nm laser transmission fibers, fiber splitter, 3dB power splitters and multicomponent glass up-conversion luminescence optical fiber；Wherein,
The pumping laser of 980nm laser instrument output reaches illumination place place fiber splitter after Transmission Fibers long-distance transmissions, point
Every outfan all the way of light device cascades a 3dB power splitter, two outfans point of each 3dB power splitter by Transmission Fibers
Not Ou He one section of spiral-shaped multicomponent glass up-conversion luminescence optical fiber two ends, overall into array distribution in the defeated of beam splitter
Go out end face.
The way of dividing equally of described fiber splitter is 3 × n, and n is natural number, overall into array-like distribution.
Described multicomponent glass up-conversion luminescence optical fiber a length of 1～1.5m per root, be curled into 6-8 circle radius r=2～
The helical form annulus of 4cm, is spaced 0.5～1cm between ring and ring, and two ends respectively stay 6～10cm and 3dB power splitters, two outfans straight
Connect in succession.
Described multicomponent glass up-conversion luminescence optical fiber includes：
Clad material, it is one or more rare earth ion of substrate Uniform Doped in luminous with tellurate that the clad material is
The multicomponent glass of the heart, the prepared multicomponent glass with tellurate as substrate is by mole comprising following components：
Na2O content 12～16%, ZnO content 3～7%, TeO2Content 45～55%, PbO contents 5～10%, GeO2Content 16～
22%, ZnF2Content 3～7%, the summation of said components is 100%；Doping can upconversion luminous for Yb3+、Ho3+、Tm3 +、Er3+、Pr3+One or more rare earth ion, doping ratio is adjusted according to the brightness of required white light, colour temperature or colourity,
The output of tunable white is realized, the illumination of high color rendering index (CRI) is reached；
Core material, the core material are the tellurate multicomponent glasses that refractive index is slightly below covering；
Coated with buffer layer, coats outside multicomponent glass up-conversion luminescence fibre cladding that one layer flexible, aging resistance, anti-again
Ultraviolet and visible light wave range without absorb transparent isolation material or transparent protection material；
Clad material coats the periphery of the core material, and with the refractive index more slightly higher than fibre core, there is pattern and let out
Dew fissipation factor, using refractive index inverse-guiding principle, i.e. light in the less fibre core of refractive index and the larger clad interface of refractive index
No longer there is total reflection and gradually leak out in covering in place, so that the pump light transmitted in fibre core is uniformly leaked in covering swashing
The multicomponent glass rare earth luminescence center that gives out a contract for a project in layer, carries out upconversion and lights.
During described multicomponent glass up-conversion luminescence optical fiber corresponding wavelength λ=589.3nm, refractive index n of fibre core1For
1.860～1.876, refractive index n of covering2For 1.862～1.882, refractive indices n=n of core/covering2-n1For 0.002～
0.008, core diameter is 3.8 μm～6.6 μm or 80 μm, and cladding diameter is 120～130 μm.
Beneficial effect：The present invention has beneficial effect as follows based on conversion of white light fiber illumination device on a kind of multicomponent glass
Really：
The 980nm pumping lasers of long-distance transmissions are in array-like arrangement by fiber splitter and coupling device entrance
Lateral emitting multicomponent glass optical fiber two ends, by adjusting pump light intensities, the component of rare earth ion and doping content, improve fine
The architecture of multicomponent glass in core so that 980nm pump lights excite the rare earth ion adulterated in covering to carry out energy level turn
Visible ray is changed out, white-light illuminating is realized.
Description of the drawings
Fig. 1 is the knot of one luminescence unit of conversion of white light fiber illumination device on a kind of multicomponent glass proposed by the present invention
Structure schematic diagram.
Fig. 2 is that conversion of white light fiber illumination device is arranged in 3 × 3 array-likes on a kind of multicomponent glass proposed by the present invention
Light source schematic diagram.
Fig. 3 is lateral emitting multicomponent in the structural representation of conversion of white light fiber illumination device on a kind of multicomponent glass
The enlarged diagram of glass optical fiber.
Fig. 4 is a kind of lateral emitting multicomponent glass optical fiber proposed by the present invention and common lateral emitting optical fiber luminous intensity
Comparison with distance change.
Cross-sectional views of the Fig. 5 for lateral emitting multicomponent glass optical fiber structure.
Fig. 6 prepares lateral emitting optical fiber prefabricated rods schematic diagram for rod-in-tube technique.
Fig. 7 is the fluorogram of lateral emitting multicomponent glass optical fiber in embodiment.
Have in the figures above：980nm pump lasers 1,980nm laser Optic transmission fiber 2, fiber splitter 3,3dB work(point
Device 4, multicomponent glass up-conversion luminescence optical fiber 5, luminescent panel 6, common lateral emitting optical fiber luminous intensity are with distance change
Curve 7, the curve 8 of length change of the present invention, armor coated A, covering B, fibre core C.
Specific embodiment
For making the purpose of the present invention, technical scheme and beneficial outcomes become more apparent, below in conjunction with specific embodiment, and
The present invention will be further described referring to the drawings, but does not limit the scope of the invention.In addition, although the present invention is provided and included
The demonstration of the particular value of some parameters, it will be appreciated that these parameters are without the need for being definitely equal to corresponding value, but in certain error
Corresponding value is approximately equal in tolerance limit or design constraint.
The invention provides conversion of white light fiber illumination device on a kind of multicomponent glass, as shown in figure 1, the device includes
The laser instrument 1 of one 980nm for being used for providing pump light and its Transmission Fibers 2, fiber splitter 3,3dB power splitters 4 and be in
Spirally-wound multicomponent glass up-conversion luminescence optical fiber 5.Wherein：The light splitting way of fiber splitter 3 can be such as Fig. 2 institutes
3 for showing × 3 nine tunnels, can also be 3 × 40 two tunnels or other numbers, per cascading a 3dB power splitter 4 all the way, which is two defeated
Go out end and link with 5 two ends of multicomponent glass optical fiber for winding in the shape of a spiral, overall into array distribution.Specifically lighting process is
980nm pumping lasers 1, are divided by 3dB work(after light splitting to place place fiber splitter 3 is illuminated through 2 long-distance transmissions of Transmission Fibers
Device 4 is divided into 1:1 two-way is exported, then the two ends for being coupled into the multicomponent glass optical fiber 5 for winding in the shape of a spiral.Due to multicomponent glass
Glass fiber core is designed with the refractive index inverse-guiding of covering so that 980nm pump lights are revealed on fibre core inner edge transmission side, cause bag
The 980nm pump lights revealed by the rare earth ion adulterated in layer are excited realizes that upconversion lights.By adjusting incident pump
Light intensity and multicomponent glass optical fiber length, control pump light are stably gently revealed by fibre core to covering, can achieve multicomponent glass
Glass optical fiber uniformly light-emitting in the range of the certain length, and luminous intensity continuous tuning within the specific limits, by each optical fiber luminescent
Unit arrangement finally achievable array illumination as shown in Figure 2.
Fig. 3 is the structural representation of multicomponent glass optical fiber in the present embodiment, draws using fibre core and cladding index are anti-ballistic
Principle makes light in fibre core and clad interface no longer experiences total internal reflection, and makes the 980nm pump lights transmitted in fibre core leak into bag
In layer, so as to excite the rare earth luminous ionoluminescence that adulterates in covering.As pumping plain edge transmission side is revealed, with transmission range
That is the increase pump light intensities of fiber lengths gradually decay, and cause the luminous intensity of multicomponent glass optical fiber also to decline therewith.Cause
This, is to realize the uniform and stable transmission for lighting, need to passing through control pump light of multicomponent glass optical fiber in each luminescence unit
Distance is the length of optical fiber adjusting the luminous intensity of multicomponent glass optical fiber.According to multicomponent glass optical fiber as shown in Figure 4
In the relation curve that pump light excites lower luminous intensity and fiber lengths, multicomponent glass optical fiber in each luminescence unit is chosen
Length about 1～1.5m.And luminous intensity occur with fiber lengths increase and decline this defect to make up, by the 1～1.5m
Long multicomponent glass optical fiber is curled into the helical form annulus of a diameter of 4cm of 6-8 circles, annulus opposite ends and 3dB power splitters two
Individual outfan connection, takes to pumping, sending out so as to can ensure that each multicomponent glass optical fiber luminescence unit is uniform, stable
Light.
Additionally, the multicomponent glass being related in the present invention and the present embodiment and its lighting fiber, are prepared by following methods and are obtained
?：First, former by mole the multicomponent glass optical fiber covering for weighing 14%, 5%, 50%, 7%, 19% and 5% respectively
Material Na2O、ZnO、TeO2、PbO、GeO2And ZnF2Common 200g, weighs 0.4%, 0.4% and 1.6% by weight percentage respectively
Rare-earth compound Yb2O3、Ho2O3And Tm2O3.Then, after by raw material mix homogeneously, it is placed in after pouring silica crucible successively into
In 1000 DEG C of siliconits high temperature furnace, agitated, clarification, found 1 hour after homogenizing vitreous humour, then be poured into and be pre-heated to 260
DEG C or so copper coin on, being placed in after glass solidification in 360 DEG C of Muffle furnaces carries out fine annealing, is down to room temperature through 10 hours.Most
Afterwards, the homogeneous glass for selecting bubble-free, striped good is processed into cladding glass rod.When making optical fiber core material, in covering glass
On the basis of glass material prescription, fine setting glass ingredient makes fibre core there is close glass transition temperature, turn with cladding glass material
Temperature, thermal coefficient of expansion and dispersion characteristics etc..The preparation technology for using for reference cladding glass obtains glass of fiber core material, after polishing
Arrive Circular glass rod.By the cladding glass bastinade hole for preparing, its aperture ratio fibre core Circular glass rod outside diameter is slightly larger, using such as Fig. 5
Shown rod-in-tube technique is obtained lateral emitting optical fiber prefabricated rods, then is placed on wire-drawer-tower fixed position, operates wire-drawer-tower control
Temperature processed obtains lateral emitting optical fiber in 425 DEG C of wire drawings.The end face structure of gained optical fiber is illustrated as shown in fig. 6, wherein A is protected for coating
Sheath, multicomponent glass coverings of the B for doping with rare-earth ions, C are multicomponent glass fibre core, and corresponding cladding index is n2=
1.872, fiber core refractive index is n1=1.868.
In the case where the 980nm pump lights of 2.5W are excited, its illumination is 140Lux (at 2cm) to covering bulk, in pumping after tested
Have stronger fluorescence intensity under the exciting of light, and luminous compare homogeneous soft, by changing on the multicomponent glass to making
The test of emitting optical fiber spectrum property, obtains the fluorescence spectra under 980nm laser pump (ing)s as shown in Figure 7.As seen from the figure,
Three fluorescence peak centre wavelengths of red, green, blue are located at 660nm, 546nm and 475nm respectively and locate, corresponding CIE chromaticity coordinates be (0.42,
0.43), in white light field.
Claims (2)
1. conversion of white light fiber illumination device on a kind of multicomponent glass, it is characterised in that the device includes：980nm pumping lasers
On device (1), 980nm laser transmission fibers (2), fiber splitter (3), 3dB power splitters (4) and multicomponent glass, conversion is sent out
Light optical fiber (5)；Wherein, the laser that 980nm pump lasers (1) are exported enters fiber splitter (3), light through Transmission Fibers (2)
Every outfan all the way of fine beam splitter (3) cascades a 3dB power splitter (4), each 3dB power splitter by Transmission Fibers (2)
(4) two outfans couple the two ends of one section of multicomponent glass up-conversion luminescence optical fiber (5) respectively, overall into array distribution in
The output end face of fiber splitter (3)；
The way of dividing equally of described fiber splitter (3) is 3 × n, and n is natural number, overall into array-like distribution；
Described multicomponent glass up-conversion luminescence optical fiber (5) a length of 1～1.5m per root, is curled into 6-8 circles radius r=2～4cm
Helical form annulus, between ring and ring be spaced 0.5～1cm, two ends respectively stay (4) two outfans of 6～10cm and 3dB power splitters straight
Connect in succession；
Described multicomponent glass up-conversion luminescence optical fiber (5) includes：
Clad material, it is one or more rare earth ion of substrate Uniform Doped as the centre of luminescence with tellurate that the clad material is
Multicomponent glass, the prepared multicomponent glass with tellurate as substrate is by mole comprising following components：Na2O contains
Amount 12～16%, ZnO content 3～7%, TeO2Content 45～55%, PbO contents 5～10%, GeO2Content 16～22%, ZnF2
Content 3～7%, the summation of said components is 100%；Doping can upconversion luminous for Yb3+、Ho3+、Tm3+、Er3+、Pr3 +One or more rare earth ion, doping ratio is adjusted according to the brightness of required white light, colour temperature or colourity, realizes adjustable
The output of humorous white light, reaches the illumination of high color rendering index (CRI)；
Core material, the core material are the tellurate multicomponent glasses that refractive index is slightly below covering；
Coated with buffer layer, one layer of multicomponent glass up-conversion luminescence fibre cladding outer cladding is flexible, aging resistance, uvioresistant and
In visible light wave range without the transparent isolation material or transparent protection material for absorbing；
Clad material is coated on the periphery of the core material, and with the refractive index more slightly higher than fibre core, there is pattern leakage
Fissipation factor, using refractive index inverse-guiding principle, i.e. light at the less fibre core of refractive index with the larger clad interface of refractive index
No longer there is total reflection and gradually leak out in covering, so that the pump light transmitted in fibre core gradually uniformly leaks to covering
In excite multicomponent glass rare earth luminescence center in covering, carry out upconversion and light.
2. conversion of white light fiber illumination device on a kind of multicomponent glass according to right 1, it is characterised in that described is more
During component glass up-conversion luminescence optical fiber (5) corresponding wavelength λ=589.3nm, refractive index n of fibre core1For 1.860～1.876, bag
Refractive index n of layer2For 1.862～1.882, core, the refractivity △ n=n of covering2-n1Between 0.002～0.008, fine
Core diameter is 3.8 μm～6.6 μm or 80 μm, and cladding diameter is 120-130 μm.
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| CN201510348639.3A CN104948956B (en) | 2015-06-23 | 2015-06-23 | Conversion of white light fiber illumination device on a kind of multicomponent glass |
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| CN201510348639.3A CN104948956B (en) | 2015-06-23 | 2015-06-23 | Conversion of white light fiber illumination device on a kind of multicomponent glass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4142072A4 (en) * | 2020-04-24 | 2024-02-21 | Panasonic Ip Man Co Ltd | Luminescent system |
| CN113586993A (en) * | 2021-07-08 | 2021-11-02 | 苏州宇慕汽车科技有限公司 | Vehicle-mounted atmosphere lamp based on LED light source |
| CN117666013A (en) * | 2024-01-31 | 2024-03-08 | 创昇光电科技(苏州)有限公司 | Side-emitting glass optical fiber |
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| CN1789794A (en) * | 2004-12-15 | 2006-06-21 | 冠德光电科技股份有限公司 | Optical fiber sculpture lamp and method for manufacturing the same |
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Application publication date: 20150930 Assignee: Nanjing University of Posts and Telecommunications Nantong Institute Limited Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2018320000057 Denomination of invention: Multicomponent glass up-conversion white light optical fiber lighting device Granted publication date: 20170315 License type: Common License Record date: 20180314 |
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Application publication date: 20150930 Assignee: Nanjing University of Posts and Telecommunications Nantong Institute Limited Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: X2019980001260 Denomination of invention: Multicomponent glass up-conversion white light optical fiber lighting device Granted publication date: 20170315 License type: Common License Record date: 20191224 |
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