Naqshadeynta waddada indhaha ee fibre-gaabanlaser-linewidth cidhiidhi ah
1. Dulmar
1018 nm polarized fiber cidhiidhi-linewidth laser. Mawjada shaqadu waa 1018 nm, awoodda wax soo saarka laysarka waa 104 W, ballaadhka 3 dB iyo 20 dB waa ~ 21 GHz iyo ~ 72 GHz siday u kala horreeyaan, saamiga dabar goynta waa> 17.5 dB, tayada iftiinka waa sare (2 x M - 1.62) iyo 2 2 .nidaamka laysarkaoo leh wax-ku-oolnimo 79% (~ 1.63).
2. Sharaxaada jidka indhaha
In aLayeerka fibre-gaaban ee cidhiidhiga ahFiber laser oscillator-ka tooska ah ee toosan wuxuu ka kooban yahay labo ka mid ah xajmiyada fiber-ka-ilaalinta iyo 1.5-mitir-dherer ah 10/125 μm ytterbium-doped polarization-ka ilaalinta fiber-ka-ilaalinta dhexdhexaadka ah. Isku-dhafka nuugista ee fiber-kan indhaha ee 976 nm waa 5 dB/m. Oscillator-ka laysarka waxa lagu shubaa mawjadda dhererkeedu yahay 976 nmlaser semiconductoroo leh awoodda ugu badan ee 27 W iyada oo loo marayo isku-darka iftiinka-ilaalinta (1+1) × 1. Milicsiga sare ee milicsiga ayaa leh milicsi ka badan 99%, iyo 3 dB cabirka milicsiga waa ku dhawaad 0.22 nm. Milicsiga hoose ee shabaggeedu waa 40%, iyo 3 dB bandwidth milicsiga waa ku dhawaad 0.216 nm. Mawjadaha dhererka milicsiga dhexe ee labada grating waa 1018 nm. Si loo dheellitiro awoodda wax soo saarka ee resonator-ka laysarka iyo saamiga xakamaynta ASE, milicsiga hoose ee shafka ayaa la hagaajiyay ilaa 40%. Fiberka dabada ee shaadhka-milicsiga sare waxa uu ku xidhan yahay faa'iidada faa'iidada, halka xuubka dabada ee shabagga hoose ee milicsiga uu u wareego 90 ° oo lagu dhajiyay fiilada dabada ee shaandhada daboolka. Haddaba, booska ugu sarreeya ee mawjadda milicsiga dhidibka-dhakhso leh ee shaadhka-milicsiga-sare waxa uu la mid yahay kan dhidibka qunyar-socodka ah ee milicsiga mawjadda-milicsiga hoose. Sidan oo kale, hal laser-polarized kaliya ayaa ku dhex milmi kara godka resonant. Iftiinka bamka ee haray ee ku dhexjira fibre-gaab indhaha waxaa lagu sifeeyaa shaandheyn iskeed isku sameysa oo ku dhex dartay godka resonant, pigtail wax soo saarkana waxaa la rog-rogay 8° si looga hortago jawaab celinta wejiga dhammaadka iyo gariirrada dulin.
3. Aqoonta asalka ah
Habka jiilka ee leysarka fiber-ka toosan: Sababo la xiriira walaaca walaaca, faybar-ilaalinta qaab-dhismeedka pear-ku wuxuu leeyahay laba faashas polarization orthogonal, oo loo yaqaan dhidibka degdegga ah iyo dhidibka gaabis ah. Guud ahaan, mar haddii index refractive ee dhidibka gaabis ah uu ka weyn yahay dhidibka dheereeya, shabaggeedii ku qoran faybar-ilaalinta polarization-ku leeyahay laba hirarka dhexe oo kala duwan. Godka resonant ee leysarka fibre-ku-salaysan ee toosan waxa uu ka kooban yahay laba xabbo oo xajmi-ilaalin ah. Mawjadaha dhaadheer ee shabaqyada milicsiga hooseeya iyo shabagga sare ee milicsiga dhidibka degdega ah iyo dhidibka gaabis ah ayaa u dhigma siday u kala horreeyaan. Marka bandwidth milicsiga ee shabaggeedii-ilaalinta waa cidhiidhi ku filan, spectra gudbinta ee dhidibka degdega ah iyo jihooyinka dhidibka gaabis ah waa la kala saari karaa, iyo labada mawjadaha gariiri karaan godka resonant gudahood. Marka loo eego mabda'a laba-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha-mawjadaha ah ee-sharaf-ilaalinta, tijaabada, habka alxanka ee barbar socda ayaa la qaadan karaa si loo gaaro. Inta lagu jiro alxanka, faashashka ilaalinta polarization-ka ee labada shabaq waa la siman yahay. Sidan oo kale, labada ugu sarreysa ee gudbinta ee grating-milicsiga sare waxay u dhigantaa kuwa ka mid ah shabaqyada hoose ee milicsiga, sidaas awgeedna wax soo saarka laysarka laba-mawjadaha waa la xaqiijin karaa.
Nidaamyada dayactirka polarization-ka dhabta ah ee laysarka, qalfoofka toosan waa tilmaame muhiim ah oo lagu qiimeeyo sifooyinka wax soo saarka ee leysarka toosan. Guud ahaan, muddada shaadhka milicsiga sare waa ka weyn yahay kan shaadhka milicsiga hooseeya. Si loo gaaro leys toosan oo leh qiimihiisu PER sareeyo, hal kaliya ee ugu sarreeya ayaa u baahan inuu gariiro. Marka dhidibka degdega ah ee grating-milicsiga-hooseeya uu weheliyo dhidibka gaabis ah ee grating-milicsiga sare, Mawjada dhexe ee jihada degdega ah ee sharoobada hoose u dhigma si ay daadin. Sidan, hal ugu sarreeya gudbinta ayaa la gariirin karaa. Sidoo kale, marka dhidibka gaabiska ah ee sharoobada milicsiga hooseeya uu ku socdo dhidibka degdega ah ee grating-sare, mawjada dhexe ee dhidibka gaabiska ah ee sharoobada hooseeya waxay u dhigantaa mid ka mid ah dhidibka degdega ah ee sharoobada sare, halka ugu sarraysa gudbinta ee dhidibka degdega ah. Sidan, mid ka mid ah ugu sarreeya gudbinta ayaa sidoo kale lagu gariiri karaa. Labada hab ee kor ku xusan waxay gaari karaan wax soo saarka laysarka toosan. Marka loo eego mabda'a oscillation laser-ka toosan ee hal-mawjadaha ah ee shabagga ilaalinta polarization-ka, tijaabada, habka kabxinta orthogonal waa la qaadan karaa si loo gaaro. Marka xagasha xagalka ah ee dabaylaha-ilaalinta faashashka sare ee milicsiga sare iyo shabaggeedii milicsiga hoose waa 90 °, ugu sarreysa gudbinta ee jihada dhidibka gaabis ah ee shabaggeedii sare u dhiganta ugu sarreysa gudbinta ee jihada degdegga ah ee shabaggeedii hoose milicsiga, oo sidaas wax soo saarka ee hal-wavelength linearly si toos ah loo ogaan karaa fiber.
Waqtiga post: Seb-12-2025