Wata tawagar kasar Sin ta ƙera wani babban bandeji na 1.2μm mai ƙarfi mai ƙarfi Raman fiber Laser

Tawagar kasar Sin ta ƙera babbar tashar Raman mai ƙarfi mai ƙarfi 1.2μmfiber Laser

Tushen LaserYin aiki a cikin rukunin 1.2μm suna da wasu ƙayyadaddun aikace-aikace a cikin farfaɗowar hoto, binciken ilimin halittu, da gano iskar oxygen. Bugu da ƙari, ana iya amfani da su azaman tushen famfo don ƙirar tsaka-tsaki na hasken infrared na tsakiya da kuma samar da haske mai gani ta mita ninki biyu. Lasers a cikin 1.2 μm band an samu da daban-dabanm-jihar lasers, ciki har dasemiconductor lasers, Lu'u-lu'u Raman Laser, da fiber Laser. Daga cikin waɗannan lasers guda uku, fiber Laser yana da fa'idodin tsari mai sauƙi, ingancin katako mai kyau da aiki mai sassauƙa, wanda ya sa ya zama mafi kyawun zaɓi don samar da laser band 1.2μm.
Kwanan nan, tawagar binciken da Farfesa Pu Zhou ke jagoranta a kasar Sin na da sha'awar yin amfani da Laser na fiber mai karfin gaske a cikin band 1.2μm. Babban ƙarfin fiber na yanzuLasersune mafi yawan ytterbium-doped fiber lasers a cikin 1 μm band, kuma matsakaicin ikon fitarwa a cikin 1.2 μm band yana iyakance zuwa matakin 10 W. Ayyukan su, mai suna "High Power Tunable Raman fiber Laser at 1.2μm waveband," ya kasance. aka buga a cikin Frontiers ofOptoelectronics.

FIG. 1: (a) Saitin gwaji na babban ƙarfi mai ƙarfi Raman fiber amplifier da (b) bazuwar Raman fiber iri Laser a 1.2 μm band. PDF: fiber-doped fiber; QBH: Quartz girma; WDM: Multixer Rarraba Tsawon Tsawon Tsawon Lokaci; SFS: tushen hasken fiber superfluorescent; P1: tashar 1; P2: tashar jiragen ruwa 2. P3: yana nuna tashar jiragen ruwa 3. Tushen: Zhang Yang et al., Babban ikon tunable Raman fiber Laser a 1.2μm waveband, Frontiers of Optoelectronics (2024).
Manufar ita ce a yi amfani da tasirin watsawar Raman da aka motsa a cikin fiber mai wucewa don samar da babban laser mai ƙarfi a cikin rukunin 1.2μm. Watsawar Raman mai kuzari shine tsari na uku wanda ba na kan layi ba wanda ke juyar da photon zuwa tsayin raƙuman ruwa.

Hoto 2: Bazuwar fitowar RFL bazuwar a (a) 1065-1074 nm da (b) 1077 nm famfo tsayin raƙuman ruwa (Δλ yana nufin 3 dB layin layi). Madogararsa: Zhang Yang et al., Babban iko mai ƙarfi Raman fiber Laser a 1.2μm waveband, Frontiers of Optoelectronics (2024).
Masu binciken sunyi amfani da tasirin watsawar Raman mai kuzari a cikin fiber-doped fiber don canza babban ƙarfin ytterbium-doped fiber a band 1 μm zuwa 1.2 μm band. An samo siginar Raman mai ƙarfi har zuwa 735.8 W a 1252.7 nm, wanda shine mafi girman ƙarfin fitarwa na 1.2 μm band fiber Laser da aka ruwaito zuwa yau.

Hoto na 3: (a) Matsakaicin ikon fitarwa da daidaitaccen bakan fitarwa a tsawon sigina daban-daban. (b) Cikakken bakan fitarwa a madaidaicin sigina daban-daban, a cikin dB (Δλ yana nufin 3 dB layin layi). Madogararsa: Zhang Yang et al., Babban iko mai ƙarfi Raman fiber Laser a 1.2μm waveband, Frontiers of Optoelectronics (2024).

Hoto: 4: (a) Spectrum da (b) halayen juyin halitta mai ƙarfi na Raman fiber amplifier mai ƙarfi mai ƙarfi a tsayin famfo na 1074 nm. Madogararsa: Zhang Yang et al., Babban iko mai ƙarfi Raman fiber Laser a 1.2μm waveband, Frontiers of Optoelectronics (2024)