激光線寬 的英文怎麼說

中文拼音 [jīguāngxiànkuān]
激光線寬 英文
laser linewidth
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  1. At the same time, the cw 40w diode laser is successfully packaged

    激光器譜線寬度3nm ，電光效率接近40 。
  2. It is transparent in a region from the visible to the infrared range ( 0. 45 - 13 ? m ) and has a fitful birefringence and a large nonlinear coefficient. aggas2 crystal can be made to be octonary device, difference - frequence device and parametric oscillator, and laser sources of different frequences in 1. 8 - 11 ? m band can be provided

    其紅外透波范圍寬（ 0 . 45 - 13 m ） ，具有適宜的雙折射率和大的非線性系數，可製成倍頻、差頻和光參量振蕩器件，在1 . 8 - 11 m范圍內可提供多種頻率的激光光源。
  3. The grating and reticle, which linewidth errors are less than 10 % nominal linewidth, are fabricated by ldw. for the first time metallic mesh film with area 200mm 200mm fabricated by using ldw photolithography and coating technology

    本文完成了直角坐標激光直寫光刻技術研究，開展了離焦激光直寫光刻的工藝研究，製作了光柵和網格分劃板，線寬誤差控制在10 %以內。
  4. Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization, and considered the cases that the pump beams have either narrowband or broadband linewidth. we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions. that is to say, this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state

    文摘:研究了四能級系統中基於五階極化的拍頻效應，考慮了抽運光束為窄帶線寬或寬帶線寬的情形.發現其對能級分裂的測量精度決定於光學躍遷的均勻增寬.也就是說，這種技術在測量與基態是偶極禁戒躍遷的兩激發態之間的能級分裂時，可得到消除多普勒增寬的精度
  5. The high - finesse cavity can be used to measure the laser linewidth due to its narrower cavity linewidth, with which the linewidth of dbr laser is measured as 1. 49mhz

    由於高精細度腔窄線寬特點，它可用來測量激光線寬。實驗中用它測量dbr激光器線寬為1 . 49mhz 。
  6. With the development of laser techniques, the optical cavity has played an important role on monitoring laser mode, measurement and narrowing of laser linewidth, laser mode cleaner, laser frequency stabilization, optical spectrum and cavity - qed etc., due to its advantages of ultra - low losses, high finesse and narrow linewidth

    隨著激光技術的發展，諧振腔由於其腔內損耗小、精細度高、線寬窄等特點，使得其在監視激光模式、測量並壓窄激光線寬、激光模式清潔、激光穩頻、激光光譜學、腔量子電動力學等方面起到重要的作用。
  7. At present, people usually use birefrigence and quasi - phase - matching methods to achieve higher effiency in the process of conversion. a significant advantage of quasi - phase - matching method is that the interaction is occurred through the largest element of the x ( 2 ) tensor ; the period of optical superlattice can be designed randomly, and any interaction can be matched without walk - off angle ; they are fitted to be used in frequency conversion of lower power especially. the quasi - phase - matching method has some advantages over birefrigence method, improving the efficiency of frequency conversion ; the range of frequency conversion covers its whole transperant wavelength

    由於準相位匹配技術有其獨特的優勢，可以利用非線性光學晶體的最大二階極化張量，如ppln 、 pplt 、 ppktp用的非線性極化張量都是d _ （ 33 ） ，其有效非線性系數高出普通非線性光學介質（如bbo 、 lbo 、 ktp ）一個數量級，而且可以人為靈活設計調制周期，通過周期設計其頻率變換范圍可以覆蓋準相位匹配介質的整個透明波段，選擇無走離效應，解決了常規pm難以解決的問題，拓寬了非線性晶體的應用范圍，極大地提高了頻率轉換效率，已成為非線性光學材料和固體激光器的研究熱點之一。
  8. A stable tunable er3 doped fiber laser with narrow line - width

    一種輸出穩定的窄線寬可調諧摻鉺光纖激光器
  9. Stable single - frequency and linear - polarization erbium doped fiber ring laser

    窄線寬單頻線偏振摻鉺光纖環形腔激光器
  10. Nonlinear - frequency - conversion is one of the best ways in widening wavelength of laser

    拓寬激光輸出波長范圍，最常用、最有效的方法之一是利用非線性晶體的頻率變換技術。
  11. Continuous - wave optical parametric oscillators ( cw opos ) are an attractive source of coherent radiation in applications for which laser sources are unavailable or for which wide tunablity is needed, cw opos have remarkable features of operating with narrow linewidth and broad tunablity

    連續波光學參量振蕩器（ cwopos ）可以用來拓寬激光的波長范圍，有較寬的調諧區域，是一種理想的產生相干輻射的裝置。由於它的窄線寬和寬調諧的輸出特性，也被用於光譜學、相干光通訊、量子光學等領域。
  12. Lts lil1ewidth is less than 2. 33khz in its full wavelength tuning range

    92urn ） 。在波長連續調諧范圍之內，其輸出激光線寬均在2
  13. Abstract : we have studied the polarization beats spectroscopy with phase - conjugation geometry in a cascade three - level system. it was found that the accuracy for the energy - level difference measurement is determined by the homogeneous linewidths of the optical transitions. under the condition for the occurrence of beating, the frequency difference of the beat between two independent light sources could exceed the laser linewidth. the measurement accuracy for laser absolute frequency could reach the same order of magnitude as the laser linewidth

    文摘:研究了級聯三能級系統中的相位共軛極化拍頻光譜術.發現其對能級差的測量精度決定於光學躍遷的均勻增寬.在符合拍頻條件時，兩獨立光源拍頻的頻差可以超出激光線寬，激光絕對頻率的測量精度可達到與激光線寬同一量級
  14. A comprehensive theory is presented for fm spectroscopy of doppler - broadened molecular iodine absorption lines. the relationship betwcen fm spectroscopy and modulation frequency and modulation index has been studied. the whole circuit for thc frcquency stabilized laser system has been developed

    建立了多普勒加寬碘分子線性吸收fm光譜的一般理論，對fm光譜與調制頻率和調制度的關系進行了研究；並研製了532nmnd : yvo _ 4 / ktp碘吸收穩頻激光器的電路系統；提出了虛擬激光穩頻技術的概念。
  15. Secondly, we propose and demonstrate experimentally a novel multi - wavelength erbium - doped fiber ring laser by using a mach - zehnder fiber interferometer and composite cavity. as a result, simultaneous multi - wavelength oscillations with narrow linewidth and equal wavelength span are obtained in room temperature. this device has advantageous of simple design fabrication and low cost et al

    進一步，我們設計了一種新穎的多波長摻鉺光纖環形激光器，這種激光器是利用mach - zenhder （ m - z ）光纖型干涉儀作為梳狀濾波器，並且與復合腔共同選頻，獲得了窄線寬、等間隔的多波長同時輸出，這種激光器具有在常溫工作，結構簡單，成本低等優點。
  16. The epitaxial struture for ld is an ingaas / gaas / algaas ssqw grin sch structure and the width of the array bar ia 4mm. the low theshold current 2. 9a the output power 20w at 17. 5a have been achieved by sioi isolation, ohmic contact and facet coating processes. the central wavelength is 979nm. at the same time, model analyses on the structure of the ssqw ld and the fabrication processes have been made for further research

    激光器的生長結構採用ingaas / gaas / algaas分別限制應變單量阱線性緩變折射率波導結構，列陣條寬為4mm ，通過sio _ 2掩膜，歐姆接觸和腔面鍍膜等工藝，實現了閾值電流為2 . 9a ，驅動電流為17 . 5a時輸出功率為20w 。
  17. This paper introduces the development of fiber - optic mach - zehnder interferometer during measuring linewidth parameter of single - frequency lasers, and the experiment result has been given

    摘要介紹了作者在測量單縱模激光器線寬參數的過程中，研製的馬赫曾德爾光纖干涉儀，並給出了實驗結果。
  18. Based on these foundations, we give a perfect scheme of the bbo opos : single pass amplification coefficient of the opg under different pump intensity is calculated ; collinear type - i and type - ii phase matching tuning curve pumped by the q switch nd : yag various harmonics as well as noncollinear type - i tuning curve are calculated in details ; the effect of the walkoff for the nonlinear effect coefficient and the group velocity matching are analyzed ; the acceptance angle in parametric process is calculated ; the numerical threshold of the bbo opo is calculated ; the process of the saturation and depletion of the pump beam are analyzed ; the relationship of the conversion efficiency and reflectance of output mirror are discussed ; various linewidth controlling methods are discussed ; the improvement of the beam quality applying the unstable cavity is discussed ; and the crystal bbo design is considered

    在此基礎上，給出了一整套bbo - opo激光參數設計方案：計算了不同泵浦強度下的參量放大倍數；詳細計算了在nd : yag調q激光器各次諧波泵浦條件下的共線類和類相位匹配的調諧曲線，以及非共線類相位匹配調諧曲線；分析了走離角對非線性系數和群速匹配的影響；計算了參量過程的允許角；計算了bbo - opo的理論閾值條件；分析了飽和與泵浦光束的消耗過程；給出了轉換效率與超過泵浦閾值的倍數的關系；討論了轉換效率與輸出鏡反射率的關系；討論了線寬控制的各種方法；研究了利用非穩腔改善光束質量的方法；考慮了bbo晶體的設計。
  19. In this paper, a new theoretical model is established for optical fiber pumped by broadband laser. using the new model, we have analyzed the influence of longitudinal - mode number, bandwidth and line - width of pumping source on sbs reflectivity, and pointed out the monochromaticity of pumping laser has obvious affect on optical fiber conjugator

    成功解釋了激光線寬、縱模間隔與數目對光纖中sbs過程的影響，並通過數值計算分析了sbs閾值、反射率、相對穩定性、保真度等性能參數隨著注入激光能量、脈寬以及光纖長度、芯徑的變化趨勢。
  20. The effects including the number of bilayers, the laser pulse width and the substitutent group on the nlo properties of the tmaf / pss, ttaf / pss and thaf / pss films are studied. the experiment exhibits that the pss has no contributiton to the optical nonlinearities. in addition, with the increasing of the number of bilayers, the nlo properties of the tmaf / pss film become stronger

    對tmaf / pss 、 ttaf / pss和thaf / pss三種薄膜研究了薄膜雙層數、激光脈寬以及取代基個數對光學非線性的影響，實驗證明pss對非線性沒有貢獻，另外隨著薄膜雙層數的增加， tmaf / pss自組裝薄膜的光學非線性增強。
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