In the opo theory , the principium of the optical parametric oscillator is explained 在opo理論方面,分析了opo的工作原理。
This thesis is devoted to various studies involving quasi - phase matched optical parametric oscillator 為此,在本文中,我們對(duì)準(zhǔn)位相匹配的光學(xué)參量振蕩器進(jìn)行了一系列的研究。
With a wide - spectrum tunable output , optical parametric oscillator ( opo ) extends the laser wavelength and meets diversified needs 光學(xué)參量振蕩器( opo )可以產(chǎn)生寬范圍可調(diào)諧激光輸出,它的出現(xiàn)拓寬了激光波長(zhǎng),使之可以滿足各種應(yīng)用需要。
At present , ktp has been widely used in second harmonic generation ( shg ) , sum ( difference ) - frequency mixing , optical parametric oscillators ( opo ) and optical parametric amplification ( opa ) 目前, ktp已作為一種商業(yè)化的晶體廣泛應(yīng)用于中小功率固體激光器的倍頻( shg ) 、和(差)頻、光參量振蕩( opo )和放大( opa )等。
In addition , quasi - phase - matched materials is being used in optical parametric oscillator widely . periodically poled nonlinear crystals are of particular advantage for realizing efficient optical parametric oscillators 另外,利用ppln制成的光參量振蕩器產(chǎn)生的紅外波段光源,在軍事對(duì)抗、大氣環(huán)境檢測(cè)、醫(yī)學(xué)以及光譜學(xué)等領(lǐng)域都有十分重要的應(yīng)用價(jià)值。
Laser diode or flash lamp pumped solid state lasers with different wavelength and different operating styles . wavelength tunable laser sources with tial2 o3 laser and optical parametric oscillator laser application machines with laser display , laser material procession 各種波長(zhǎng)及各種運(yùn)轉(zhuǎn)方式的激光二極管及閃光燈泵浦的固體激光器;采用鈦寶石及光學(xué)參量振蕩器的波長(zhǎng)可調(diào)諧的激光光源;激光應(yīng)用整機(jī)。
Using the formulized approach to the su ( 1 , 1 ) h ( 4 ) time - dependent system , which is derived from the combination of the formulation of the time - dependent bogoliubov transformation and the evolution equation of the system , we obtain the time evolution operator , state function and heisenberg uncertainty relation of the parametric oscillator with cavity losses under the weak coupling approximation . we also discuss the squeezing property of the system 本文利用含時(shí)波戈留波夫變換與時(shí)間演化方程相結(jié)合得到的求解su ( 1 , 1 ) ? h ( 4 )量子系統(tǒng)的時(shí)間演化算符和演化態(tài)的普遍公式,我們導(dǎo)出了帶腔損耗的參數(shù)振子在弱耦合近似下的演化算符,態(tài)函數(shù)和不確定乘積,并討論了系統(tǒng)的壓縮特性。
In the sectionl , we introduced the development of opo and the correlative nonlinear optical ( nlo ) crystal , summarized the background and the recent advance of the clbo and linewidth of opo ; in the section2 , we have studied and stimulated linewidth of parametric light of clbo optical parametric oscillators pumped by 355nm by computer 第一章介紹了光參量激光器及相關(guān)非線性晶體的發(fā)展?fàn)顩r,綜述了clbo晶體和opo線寬的研究背景及其研究進(jìn)展情況;第二章以355nm作為泵浦光,對(duì)影響clbo晶體光參量振蕩器線寬的各種物理機(jī)制進(jìn)行了數(shù)值模擬計(jì)算、分析。
We studied the optical characteristic of the optical parametric oscillator ( opo ) on a new crystal cesium lithium borate ( cslib6oio ) . because all - solid - state uv laser has the advantage of little bulk , high power and easily to be carried etc . the application and exploitation of it has important value of not only in theory but also practicality 論文從理論上研究了新型非線性cslib _ 6o _ ( 10 ) ( clbo )晶體用于光參量過(guò)程的有關(guān)特性。由于全固態(tài)激光器具有體積小、功率高、攜帶方便等特點(diǎn),其應(yīng)用和開(kāi)發(fā),不但有重要的學(xué)術(shù)價(jià)值,而且有很大的實(shí)用價(jià)值。
However , as optical parametric oscillators are mainly used in the research area of spectroscopy etc , and the applications of spectroscopy have a high demand for the resolution of the lasers , namely beam linewidth , ours practical study of bbo - opo mainly take the efforts for seeking the theoretical support of the decreasing linewidth and improving the beam quality of output , and practical experimental methods as well as increasing the conversation of the parametric beams , and providing convenient tuning systems for the opo applications 然而,由于opo主要應(yīng)用于光譜學(xué)研究等領(lǐng)域,而光譜學(xué)的應(yīng)用對(duì)激光的分辨率即線寬和光束質(zhì)量要求較高,因此本文的bbo - opo實(shí)用化研究在努力提高參量光的轉(zhuǎn)換效率的同時(shí),主要致力于尋求壓縮線寬和提高光束質(zhì)量的理論依據(jù)和實(shí)用化的實(shí)驗(yàn)手段以及為opo的應(yīng)用提供便捷的調(diào)諧系統(tǒng)。
A parametric oscillator is a harmonic oscillator whose parameters oscillate in time. For example, a well known parametric oscillator is a child pumping a swing by periodically standing and squatting to increase the size of the swing's oscillations.