CN103166096B - Optical fiber source device for laser display - Google Patents
Optical fiber source device for laser display Download PDFInfo
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- CN103166096B CN103166096B CN201310066723.7A CN201310066723A CN103166096B CN 103166096 B CN103166096 B CN 103166096B CN 201310066723 A CN201310066723 A CN 201310066723A CN 103166096 B CN103166096 B CN 103166096B
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Abstract
The invention discloses an optical fiber source device for laser display. The optical fiber source device is characterized by comprising a laser oscillator 100 used for providing seed light for the device, wherein the laser oscillator 100 is connected with a laser amplifier 200 used for improving seed light energy, and the laser amplifier 200 is connected with non-linear optical fibers 300 used for enabling the seed light to generate signal light and idler light through the non-linear effect. The non-linear optical fibers 300 are connected with a frequency separation converter 400 used for separating the idler light, the seed light and the signal light and enabling the energy of the idler light, the seed light and the signal light to be converted into three wave bands of red, green and blue, and the red, the green and the blue serve as three primary colors of laser display. According to the optical fiber source device, single-color impulse is utilized to generate multi-color synchronous laser through the non-linear optical fibers or multi-mould fibers, and the synchronous laser is then separated by the frequency separation converter and converted into the three-band light of the red, the green and the blue.
Description
[technical field]
The present invention relates to a kind of optical fiber source device for laser display.
[background technology]
In recent years, laser display technology stablize with its large colour gamut, high saturation, high brightness, colour temperature, the long-life, high-efficiency environment friendly advantage more and more receive the concern of people.At application, laser display technology, by becoming following high-end main flow Display Technique, particularly has great development space and wide market prospects in public information large-screen, light of stage special efficacy, Projection Display, digital cinema, big screen commanding and Indivitual display etc.Laser display technology can represent more true to nature and gorgeous dynamic image at jumbotron, reaches the shock effect less than other Display Technique.
Usually, laser display system is primarily of tricolor laser light source, light path control and display screen, and three parts form.Wherein tricolor laser light source is the core of whole system, and determining main display parameters and the performance of display system, is also the principal element restricting laser display technology development speed for a long time.At present, tricolor laser light source adopts the semiconductor pumped all solid state laser of three platform independent usually, wavelength is in red (600-700nm), green (500-550nm), blue (440-490nm) three wave bands respectively, is realized the closed of light path by the light valve door controlling to be positioned over the output of every platform laser and is opened and strengthen and weaken.In optics aspect, without any connecting each other between the semiconductor laser of this three platform independent, phase place and intensity are all random fluctuations, increase the uncertainty of display effect.Therefore, this programme proposes a kind of tricolor laser light source from a light source, produces the red, green, blue three primary colors needed for laser display with a light source.This technology has significant advantage in raising light-source system stability, reduction manufacturing cost.
[summary of the invention]
Instant invention overcomes the deficiency of above-mentioned technology, provide a kind of optical fiber source device for laser display, adopt one-wavelength laser pulse to produce the synchronous laser of polychrome by nonlinear optical fiber or multimode fiber.Wherein, the polychrome lock-out pulse that the monochromatic pulses laser being positioned at 1020-1080nm by center output wavelength produces, its wavelength can be located immediately at or be transformed into red (600-700nm), green (500-550nm), blue (440-490nm) three wave bands, as the three primary colors of laser display by frequency converter.
For achieving the above object, present invention employs following technical proposal:
A kind of optical fiber source device for laser display, include the laser oscillator 100 for providing seed light for device, described laser oscillator 100 is connected with the laser amplifier 200 for improving seed light energy, described laser amplifier 200 is connected with for making seed light produce the nonlinear optical fiber 300 of flashlight and ideler frequency light by nonlinear effect, described nonlinear optical fiber 300 is connected with for separating of ideler frequency light, its energy is also transformed into red by seed light and flashlight respectively, green, the frequency separation transducer 400 of blue three wave bands, described red, green, blue light is as the three primary colors of laser display.
Described laser oscillator 100 is semiconductor pulse laser or fiber pulse laser.
Described laser amplifier 200 comprises wavelength division multiplexer 201, one input of described wavelength division multiplexer 201 is connected with laser oscillator 100, another input of described wavelength division multiplexer 201 is connected with the first pumping source 206, the compound output of described wavelength division multiplexer 201 is connected with pump combiner 204 by the first gain fibre 202 and optical isolator 203, the pumping input of described pump combiner 204 is connected with the second pumping source 207, the output of described pump combiner 204 is connected with the second gain fibre 205, the other end of described second gain fibre 205 is as the output of laser amplifier 200.
Described nonlinear optical fiber 300 is photonic crystal fiber or multimode fiber, and one end of described nonlinear optical fiber 300 is connected with the output of laser amplifier 200.
Described frequency separation transducer 400 comprises the first beam splitter 401, the input of described first beam splitter 401 is connected with the other end of nonlinear optical fiber 300, the light of described first beam splitter 401 is separated output and is connected with first via frequency converter 403, the anti-reflection output of light of described first beam splitter 401 is connected with the second beam splitter 402, the light of described second beam splitter 402 is separated output and is connected with the 3rd road frequency converter 405, the anti-reflection output of light of described second beam splitter 402 is connected with the second road frequency converter 404, described first via frequency converter 403, second road frequency converter 404 and the 3rd road frequency converter 405 are connected with display jointly.
The second described pumping source 207 is at least two, and described the second all pumping source 207 is connected with the pumping input of pump combiner 204 respectively.
Described first via frequency converter 403, second road frequency converter 404 and the 3rd road frequency converter 405 are nonlinear crystal.
The invention has the beneficial effects as follows:
1, the present invention adopts one-wavelength laser pulse to produce the synchronous laser of polychrome by nonlinear optical fiber or multimode fiber, and the stability of light source is high;
2, the present invention carries out separation its frequency by the synchronous laser of polychrome produced one-wavelength laser and carries out frequency inverted, flashlight, pump light, ideler frequency light are transformed into the three primary colors of red, green, blue three wave bands as laser display, replace three traditional platform independent semiconductor pumping sources all solid state lasers to launch tricolor laser, this device has the features such as practicality is high, cost is low.
[accompanying drawing explanation]
Fig. 1 is laser display optical fiber source device structural representation of the present invention;
Fig. 2 is the embodiment of the present invention one structural representation.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention:
As shown in Figure 1, a kind of optical fiber source device for laser display, include the laser oscillator 100 for providing seed light for device, described laser oscillator 100 is connected with the laser amplifier 200 for improving seed light energy, described laser amplifier 200 is connected with for making seed light produce the nonlinear optical fiber 300 of flashlight and ideler frequency light by nonlinear effect, described nonlinear optical fiber 300 is connected with for separating of ideler frequency light, its energy is also transformed into red by seed light and flashlight respectively, green, the frequency separation transducer 400 of blue three wave bands, described red, green, blue light is as the three primary colors of laser display.
As shown in Figure 2, described laser oscillator 100 is semiconductor pulse laser or fiber pulse laser.Wherein, laser pulse repetition frequency be KHz to hundred megahertzes, for the optical fiber source device of whole laser display provides seed optical pulse.
Described laser amplifier 200 comprises wavelength division multiplexer 201, one input of described wavelength division multiplexer 201 is connected with laser oscillator 100, another input of described wavelength division multiplexer 201 is connected with the first pumping source 206, the compound output of described wavelength division multiplexer 201 is connected with pump combiner 204 by the first gain fibre 202 and optical isolator 203, the pumping input of described pump combiner 204 is connected with the second pumping source 207, the output of described pump combiner 204 is connected with the second gain fibre 205, the other end of described second gain fibre 205 is as the output of laser amplifier 200.
The second described pumping source 207 is at least two, and described the second all pumping source 207 is connected with the pumping input of pump combiner 204 respectively.
Laser amplifier is semiconductor pumped fiber amplifier, the operation wavelength of fiber amplifier corresponds to the wavelength of seed injection light pulse, the effect of this laser amplifier is the energy of the seed laser of laser oscillator to improve, for the follow-up generation of parameter frequency and the conversion of non-linear frequency provide the pumping pulse of enough energy.
Described nonlinear optical fiber 300 is photonic crystal fiber or multimode fiber, and one end of described nonlinear optical fiber 300 is connected with the output of laser amplifier 200.
In nonlinear optical fiber, the pumping pulse of injecting by nonlinear effect, as four wave mixing, Self-phase modulation or excited Raman fall apart principle, produces two parameter frequency band, its medium frequency is called flashlight higher than the sideband of pump light, and frequency is called ideler frequency light lower than the sideband of pump light.Wherein, pumping pulse wavelength is 1020-1080nm, and signal light wavelength is positioned at 880-980nm, and ideler frequency optical wavelength is positioned at 1200-1400nm.
Wherein, realize four wave mixing process as follows, the photon ω in high-energy seed light
pafter intensity is amplified to a certain threshold value, ω
pthe polarization of fiber medium third-order non-linear is produced, 2 × ω in nonlinear optical fiber 300
p→ ω
s+ ω
i, wherein photon ω
p, ω
sand ω
ibelong to high-energy seed light (pump light), flashlight, ideler frequency light respectively.
Ideler frequency light, pump light and flashlight are separated by described frequency separation transducer 400, and respectively the energy of ideler frequency light, pump light, flashlight are transformed into a red, green, blue wave band respectively, as the three primary colors of laser display.Described frequency separation transducer 400 comprises the first beam splitter 401, the input of described first beam splitter 401 is connected with the other end of nonlinear optical fiber 300, the light of described first beam splitter 401 is separated output and is connected with first via frequency converter 403, the anti-reflection output of light of described first beam splitter 401 is connected with the second beam splitter 402, the light of described second beam splitter 402 is separated output and is connected with the 3rd road frequency converter 405, the anti-reflection output of light of described second beam splitter 402 is connected with the second road frequency converter 404, described first via frequency converter 403, second road frequency converter 404 and the 3rd road frequency converter 405 are connected with display jointly.
Described first via frequency converter 403, second road frequency converter 404 and the 3rd road frequency converter 405 are nonlinear crystal.
Embodiment one:
By a kind of optical fiber source device for laser display of above-mentioned proposition, this device can produce the ideler frequency light that wavelength is 1200-1400nm, and wavelength is the pumping pulse of 1020-1080nm, and wavelength is 880-980nm flashlight.Ideler frequency light, pumping pulse, flashlight are respectively through the three primary light source that can obtain wavelength after frequency converter frequency multiplication and lay respectively at red (600-700nm), green (500-550nm), blue (440-490nm).
One-wavelength laser pulse launched by laser oscillator 100, according to laser pulse working method, the devices such as semiconductor laser diode, fiber laser or micro-slice laser can be adopted, its centre wavelength 1064nm, pulse repetition frequency 1MHz, pulse duration is nanosecond arrive picosecond magnitude, spectral width 0.5nm, average power 10mW, for whole device provides seed light, is called pumping pulse.
Laser amplifier 200 can be single-stage fiber amplifier or multi-stage fiber amplifier.The present embodiment adopts dual-stage amplifier, and the average power of the 1064nm seed pulse of injection can be promoted to 20W by described two-stage laser amplifier 200.
The seed pulse that described laser oscillator 100 exports and the first pumping swash source 206 and jointly inject the first gain fibre 202 by wavelength division multiplexer 201, and average power can be promoted to 200mW from 10mW, realizes the pre-amplification of seed light.Laser pulse after pre-amplification by after high power light isolator 203, then injects the second gain fibre 205 with multiple second pumping source 207 through bundling device 204 jointly.The average power of described multiple second pumping sources 207 is respectively 25W, and centre wavelength is 977nm.
Described nonlinear optical fiber 300 can be photonic crystal fiber or multimode fiber, and effect is is 1064nm by the wavelength after amplifying, power is the photon ω of the seed optical pulse of 20W
pcarry out frequency translation, according to four wave mixing principle 2 × ω
p→ ω
s+ ω
i, wherein, ω
s> ω
p> ω
i, ω
s, ω
pand ω
ibe respectively flashlight, pump light, ideler frequency light.Take 1064nm as pump light ω
p, by selecting concrete optical fiber parameter can by ω
sand ω
iregulate respectively in 880-980nm and 1200-1400nm, as ω
p=1064nm, ω
s=930nm, ω
i=1243nm, pump light, flashlight and ideler frequency light according to different wavelength transmission in different fiber modes.
The ideler frequency light ω exported by nonlinear optical fiber 300
i, pump light ω
p, flashlight ω
s, through the first beam splitter 401 and the second beam splitter 402, the light path realizing different frequency is separated.First beam splitter 401 two-sided plating 1200-1400nm high-reflecting film and 800-1100nm anti-reflection film, for by ω
ithe laser of=1243nm is separated from light path.Second beam splitter 402 two-sided plating 1020-1100nm high-reflecting film and 800-980nm anti-reflection film, for by ω
pthe laser of=1064nm is separated from light path.
Frequency converter is corresponding ideler frequency light ω
i, pump light ω
p, flashlight ω
sthe frequency-doubling crystal of frequency, frequency-doubling crystal can be BBO or KTP etc.Ideler frequency light ω
i, pump light ω
pwith flashlight ω
sthe three primary light source that wavelength lays respectively at redness (622nm), green (532nm), blue (465nm) can be obtained after first via frequency converter 403, the 3rd road frequency converter 405 and the second road frequency converter 404 frequency multiplication.
Claims (7)
1. the optical fiber source device for laser display, it is characterized in that: include the laser oscillator (100) for providing seed light for device, described laser oscillator (100) is connected with the laser amplifier (200) for improving seed light energy, described laser amplifier (200) is connected with for making seed light produce the nonlinear optical fiber (300) of flashlight and ideler frequency light by nonlinear effect, described nonlinear optical fiber (300) is connected with for separating of ideler frequency light, its energy is also transformed into red by seed light and flashlight respectively, green, the frequency separation transducer (400) of blue three wave bands, described red, green, blue light is as the three primary colors of laser display.
2. a kind of optical fiber source device for laser display according to claim 1, is characterized in that described laser oscillator (100) is semiconductor pulse laser or fiber pulse laser.
3. a kind of optical fiber source device for laser display according to claim 1 and 2, it is characterized in that described laser amplifier (200) comprises wavelength division multiplexer (201), one input of described wavelength division multiplexer (201) is connected with laser oscillator (100), another input of described wavelength division multiplexer (201) is connected with the first pumping source (206), the compound output of described wavelength division multiplexer (201) is connected with pump combiner (204) by the first gain fibre (202) and optical isolator (203), the pumping input of described pump combiner (204) is connected with the second pumping source (207), the output of described pump combiner (204) is connected with the second gain fibre (205), the other end of described second gain fibre (205) is as the output of laser amplifier (200).
4. a kind of optical fiber source device for laser display according to claim 1 and 2, it is characterized in that described nonlinear optical fiber (300) is photonic crystal fiber or multimode fiber, one end of described nonlinear optical fiber (300) is connected with the output of laser amplifier (200).
5. a kind of optical fiber source device for laser display according to claim 1 and 2, it is characterized in that described frequency separation transducer (400) comprises the first beam splitter (401), the input of described first beam splitter (401) is connected with the other end of nonlinear optical fiber (300), the light of described first beam splitter (401) is separated output and is connected with first via frequency converter (403), the anti-reflection output of light of described first beam splitter (401) is connected with the second beam splitter (402), the light of described second beam splitter (402) is separated output and is connected with the 3rd road frequency converter (405), the anti-reflection output of light of described second beam splitter (402) is connected with the second road frequency converter (404), described first via frequency converter (403), second road frequency converter (404) and the 3rd road frequency converter (405) are connected with display jointly.
6. a kind of optical fiber source device for laser display according to claim 3, it is characterized in that described the second pumping source (207) is at least two, described all the second pumping sources (207) are connected with the pumping input of pump combiner (204) respectively.
7. a kind of optical fiber source device for laser display according to claim 5, is characterized in that described first via frequency converter (403), the second road frequency converter (404) and the 3rd road frequency converter (405) are nonlinear crystal.
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| CN201310066723.7A CN103166096B (en) | 2013-03-01 | 2013-03-01 | Optical fiber source device for laser display |
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| CN201310066723.7A CN103166096B (en) | 2013-03-01 | 2013-03-01 | Optical fiber source device for laser display |
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| CN103166096B true CN103166096B (en) | 2015-07-08 |
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| CN104600556A (en) * | 2015-01-30 | 2015-05-06 | 青岛大学 | All-solid three-primary-color mode-locked laser |
| CN105846297A (en) * | 2016-06-12 | 2016-08-10 | 中国工程物理研究院激光聚变研究中心 | White light laser generating system |
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| JP5295884B2 (en) * | 2008-06-30 | 2013-09-18 | パナソニック株式会社 | Optical apparatus, wavelength conversion laser light source, image display device and laser light source device provided with the same |
| CN202094471U (en) * | 2011-03-25 | 2011-12-28 | 中国计量学院 | White light quantum dot fiber laser |
| CN102299468A (en) * | 2011-07-29 | 2011-12-28 | 湖北久之洋红外系统有限公司 | Red-green-blue three-color laser and emitting regulation method thereof |
| CN203071391U (en) * | 2013-03-01 | 2013-07-17 | 广东汉唐量子光电科技有限公司 | Optical fiber light source device for laser display |
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Effective date of registration: 20160518 Address after: 528400 Zhongshan Province Torch Development Zone, Guangdong Road, No. 6 Patentee after: Guangdong Hantang Quantum Photoelectric Technology Co., Ltd. Patentee after: GUANGDONG HANBANG 3D TECHNOLOGY CO., LTD. Address before: 528400 Zhongshan Province Torch Development Zone, Guangdong Road, No. 6 Patentee before: Guangdong Hantang Quantum Photoelectric Technology Co., Ltd. |
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Effective date of registration: 20210729 Address after: 528400 floors 1 and 2, No. 28, Yuquan Road, Torch Development Zone, Zhongshan City, Guangdong Province Patentee after: GUANGDONG HUAYI LASER TECHNOLOGY Co.,Ltd. Address before: 6 Xiangxing Road, Torch Development Zone, Zhongshan City, Guangdong Province, 528400 Patentee before: GUANGDONG HANTANG QUANTUM OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Patentee before: GUANGDONG HANBANG3D TECHNOLOGY Co.,Ltd. |
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