Rage girman layin laser

Rage yawanFaɗin layi na laser

Faɗin layin laser yana da alaƙa kai tsaye da nau'in laser. Ana iya rage faɗin layin laser ta hanyar inganta ƙirar laser da rage tasirin hayaniyar waje gwargwadon iko. Mataki na farko shine a tantance wanne ne ya fi rinjaye, hayaniyar kwantum ko hayaniyar gargajiya, domin wannan zai shafi ma'aunin da za a biyo baya.

Idan ƙarfin cikin ramin ya yi yawa, asarar resonator ɗin ba ta da yawa kuma lokacin dawowar resonator ɗin yana da tsawo, hayaniyar quantum ɗinlaser(galibi hayaniyar fitar da hayaki ba zato ba tsammani) tana da ƙaramin tasiri. Hayaniyar gargajiya na iya faruwa ne sakamakon ɓullowar injina. Ana iya rage ɓullowar ta hanyar amfani da ƙaramin resonator na laser mai gajeren zango, amma wani lokacin a cikin gajerun resonators, ɓullowar tsawon na iya haifar da sakamako mai ƙarfi. Tsarin injiniya mai ma'ana zai iya rage haɗin tsakanin resonator na laser da radiation na waje, da kuma rage tasirin ɓullowar zafi. Akwai kuma ɓullowar zafi a cikin matsakaicin riba, wanda ke faruwa ne sakamakon ɓullowar ƙarfin famfo.

Domin inganta aikin hayaniya, dole ne a yi amfani da wasu na'urorin daidaita sauti masu aiki, amma ya fi kyau a fara amfani da hanyoyin da ba su da amfani. Faɗin layi na laser mai ƙarfi na mita ɗaya da kumaLaser ɗin fiberyana da kilohertz da yawa, wani lokacin ma ƙasa da 1KHz. Ta hanyar amfani da hanyar daidaita aiki, ana iya samun faɗin layi wanda bai wuce 1KHz ba. Faɗin layin diode na laser yawanci yana cikin kewayon MHZ kuma ana iya rage shi zuwa KHz, kamar a cikin laser diode na rami na waje, musamman ga diode masu amsawa na gani tare da ramin tunani mai inganci.

Ya kamata a lura cewa a wasu lokuta,tushen hasken laserba a buƙatar don samar da faɗin haske mai kunkuntar sosai:

1. Idan tsawon haɗin kai ya yi tsayi, tasirin haɗin kai (saboda raunin hasken ƙwayoyin cuta) zai lalata siffar hasken. A cikin nunin hasken laser, tasirin ɗigon haske na iya tsoma baki ga ingancin saman dawowa.

2. Idan aka watsa haske a cikin zaruruwan gani masu aiki ko marasa aiki, faɗin layi mai kunkuntar yana haifar da wasu matsaloli saboda watsawar Brillouin. A wannan lokacin, ana buƙatar ƙara faɗin layi, misali, ta hanyar daidaita diode na laser tare da wutar lantarki ko amfani da na'urar daidaitawa ta gani don girgiza mitar nan take cikin sauri. Ana amfani da faɗin layi a wasu yanayi. Hakanan ana amfani da faɗin layi don bayyana faɗin lalacewa ta gani.