Iqembu laseShayina lenze i-1.2μm yebhendi ye-Raman fibre laser eshintshwayo enamandla amakhulu

Iqembu laseShayina lenze i-Raman yebhendi enamandla amakhulu engu-1.2μmi-fiber laser

Imithombo ye-Laserabasebenza kubhendi ye-1.2μm banezinhlelo zokusebenza ezihlukile ekwelapheni nge-photodynamic, ukuhlola kwe-biomedical, kanye nokuzwa komoyampilo. Ukwengeza, angasetshenziswa njengemithombo yephampu yokukhiqiza ipharamethikhi yokukhanya okumaphakathi kwe-infrared kanye nokukhiqiza ukukhanya okubonakalayo ngokuphindaphinda kabili. Ama-Lasers ebhendi ye-1.2 μm azuzwe ngokuhlukilei-solid state lasers, kuhlanganisei-semiconductor lasers, amalaser e-diamond Raman, nama-laser fiber. Kula ma-lasers amathathu, i-fiber laser inezinzuzo zesakhiwo esilula, ikhwalithi enhle ye-boam nokusebenza okuvumelana nezimo, okwenza kube yisinqumo esingcono kakhulu ukukhiqiza i-1.2μm band laser.
Muva nje, ithimba labacwaningi eliholwa nguSolwazi u-Pu Zhou e-China linentshisekelo kuma-laser we-fiber enamandla aphezulu kubhendi engu-1.2μm. I-fiber yamandla ephezulu yamanjeama-laserikakhulukazi ama-laser e-fiber enziwe nge-ytterbium ebhendini engu-1 μm, futhi amandla aphezulu okukhiphayo ebhendini engu-1.2 μm akhawulelwe kuleveli engu-10 W. Umsebenzi wabo, onesihloko esithi “High power tunable Raman fiber laser at 1.2μm waveband,” wawungu eshicilelwe emikhawulweni yeI-Optoelectronics.

I-FIG. 1: (a) Ukusethwa kokuhlola kwe-Raman fiber amplifier enamandla aphezulu kanye (b) ne-Raman fiber seed laser eguqulekayo kubhendi engu-1.2 μm. PDF: i-phosphorus-doped fiber; I-QBH: Inqwaba ye-quartz; I-WDM: I-Wavelength division multiplexer; I-SFS: umthombo wokukhanya we-fiber superfluorescent; I-P1: imbobo 1; I-P2: imbobo 2. P3: ikhombisa imbobo 3. Umthombo: u-Zhang Yang et al., I-laser ye-Raman fibre esebenza ngamandla amakhulu ku-1.2μm waveband, Frontiers of Optoelectronics (2024).
Umqondo uwukusebenzisa umthelela wokuhlakazeka kwe-Raman ovuselelwe ku-passive fiber ukukhiqiza i-laser enamandla amakhulu kubhendi engu-1.2μm. I-stimulated Raman scattering iwumphumela we-oda lesithathu ongaqondile oguqulela ama-photon abe ubude bamaza amade.

Umfanekiso 2: I-spectra ephumayo engahleliwe ye-RFL engakwazi ukushintshwa ku-(a) 1065-1074 nm kanye (b) no-1077 nm wamaza wamaza wepompo (Δλ ibhekisela kububanzi bomugqa ongu-3 dB). Umthombo: U-Zhang Yang et al., Ilaser ye-Raman fiber esebenza ngamandla aphezulu ku-1.2μm waveband, Frontiers of Optoelectronics (2024).
Abacwaningi basebenzise umphumela wokuhlakazeka we-Raman ovuselelwe ku-fiber-doped fiber ukuguqula i-fibre enamandla kakhulu ye-ytterbium-doped fiber ku-1 μm band kuya ku-1.2 μm band. Isignali ye-Raman enamandla afinyelela ku-735.8 W itholwe ku-1252.7 nm, okungamandla okukhipha aphezulu we-fiber laser engu-1.2 μm ebikwe kuze kube manje.

Umfanekiso 3: (a) Amandla aphezulu okukhipha kanye nobubanzi bokukhiphayo obujwayelekile kumaza wamaza esignali ahlukene. (b) I-spectrum egcwele yokukhiphayo kumaza wamaza esignali ahlukene, ku-dB (Δλ ibhekisela ku-3 dB ububanzi bomugqa). Umthombo: U-Zhang Yang et al., Ilaser ye-Raman fiber esebenza ngamandla aphezulu ku-1.2μm waveband, Frontiers of Optoelectronics (2024).

Umfanekiso :4: (a) I-Spectrum kanye (b) nezici zokuguquguquka kwamandla ze-Raman fibre amplifier enamandla amakhulu eshuthekayo kubude obumpompayo obungu-1074 nm. Umthombo: U-Zhang Yang et al., Amandla aphezulu asebenzisekayo i-Raman fiber laser ku-1.2μm waveband, Frontiers of Optoelectronics (2024)