A. Manufar lasers masu sauri
Lasers masu sauri galibi suna nufin lasers masu kulle-kulle da ake amfani da su don fitar da bugun ultra-short, misali, bugun femtosecond ko picosecond duration. Sunan da ya fi daidai shine laser pulse mai gajeren zango. Lasers masu gajeren zango kusan lasers ne masu kulle-kulle, amma tasirin canzawar riba kuma yana iya samar da bugun ultrashort.
B. Nau'in laser mai sauri
1. Lasers ɗin Ti-sapphire, galibi suna kulle a yanayin ruwan tabarau na Kerr, na iya samar da bugun jini mai gajeru kamar kimanin 5 fs a tsawon lokaci. Matsakaicin ƙarfin fitarwarsu yawanci 'yan milliwatts ne, tare da saurin maimaita bugun jini na, misali, 80MHz da goma na femtoseconds ko ƙasa da haka, da kuma tsawon bugun jini na goma na femtoseconds ko ƙasa da haka, wanda ke haifar da ƙarfin kololuwa mai girma. Amma lasers ɗin titanium-sapphire suna buƙatar fitar da haske daga wasu lasers masu haske kore, wanda ke sa su zama masu rikitarwa da tsada.
2. Akwai nau'ikan lasers masu famfo iri-iri bisa ga, misali, lu'ulu'u na laser masu famfo na ytterbium (crystal ko gilashi) ko kuma lu'ulu'u na laser masu famfo na chromium, waɗanda galibi suna amfani da SESAM passive mode-locking. Duk da cewa tsawon bugun lasers masu famfo na diode bai yi ƙasa da tsawon bugun lasers na titanium-sapphire ba, lasers masu famfo na diode na iya rufe yanki mai faɗi dangane da tsawon bugun jini, yawan maimaita bugun jini, da matsakaicin ƙarfi (duba ƙasa).
3. Ana iya amfani da na'urorin laser na fiber waɗanda aka gina bisa ga zare-zaren gilashi da aka haɗa da abubuwa masu wuya na ƙasa, misali, ta amfani da juyawar polarization mara layi ko SESAM. Sun fi ƙarancin lasers fiye da na'urorin laser masu yawa dangane da matsakaicin ƙarfi, musamman ƙarfin kololuwa, amma ana iya haɗa su cikin sauƙi tare da na'urorin amplifiers na fiber. Labarin kan na'urorin laser na fiber da aka kulle a yanayin yana ba da ƙarin bayani.
(4) na'urorin laser na diode masu kullewa na iya zama na'urori masu haɗaka ko na'urorin laser na diode na waje, kuma suna iya zama masu aiki, marasa aiki ko kuma gauraye. Yawanci, na'urorin laser na diode masu kullewa suna aiki a babban adadin bugun jini (megahertz dubu da yawa) a matsakaicin kuzarin bugun jini.
Oscillators na laser masu sauri na iya zama wani ɓangare na tsarin laser mai sauri, wanda kuma zai iya haɗawa da amplifier mai sauri (kamar fiber optic amplifier) don ƙara ƙarfin kololuwa da matsakaicin ƙarfin fitarwa.
Lokacin Saƙo: Yuni-20-2023