Igwe ọkụ na-agbapụ laserna ihe niile-fiber MOPA Ọdịdị
Ụdị isi nhazi nke laser fiber gụnyere otu resonator, nchikota beam na ihe nrụpụta ike oscillating (MOPA). N'ime ha, usoro MOPA aghọwo otu n'ime ebe nyocha ugbu a n'ihi ikike ya iji nweta ọrụ dị elu.laser pulsedmmepụta na obosara usu nwere ike idozi na ugboro ugboro ugboro (a na-ezo aka dị ka obosara usu na ugboro ugboro ugboro).
Ụkpụrụ ọrụ nke MOPA laser bụ nke a: Isi oscillator (MO) bụ isi iyi mkpụrụ na-arụ ọrụ dị elu.semiconductor lasernke na-ebute ọkụ mgbaama mkpụrụ nwere paramita nwere ike ịhazigharị site na modulation pulse ozugbo. The Field Programmable gate Array (FPGA) isi njikwa na-ewepụta akara ngosi nke ugbu a na paramita nwere ike ịhazigharị, nke sekit mbanye na-achịkwa iji rụọ ọrụ isi mkpụrụ wee mezue mgbanwe mbụ nke ìhè mkpụrụ. Mgbe ị nwetasịrị ntuziaka njikwa site na bọọdụ njikwa isi FPGA, sekit draịvụ isi iyi mgbapụta na-amalite isi iyi mgbapụta iji mepụta ọkụ mgbapụta. Mgbe agbakọchara ọkụ mkpụrụ na ọkụ mgbapụta site na nkewa nke beam, a na-atụba ha n'otu n'otu n'ime Yb3+ -doped fiber optical optical (YDDCF) n'ime modul nke ngwa anya abụọ. N'oge usoro a, ion Yb3+ na-enweta ike nke ọkụ mgbapụta iji mepụta nkesa ntụgharị nke ndị mmadụ. Na-esote, dabere na ụkpụrụ nke ịgbatị ebili mmiri na-akpali akpali, ọkụ mgbaàmà mkpụrụ na-enweta uru ike dị elu na modul nkwalite ngwa anya abụọ, n'ikpeazụ na-arụpụta ike dị elu.nanosecond pulsed laser. N'ihi mmụba nke ike kacha elu, mgbama pulse a na-amụbawanye nwere ike ịnweta mkpakọ obosara usu n'ihi uru mpịachi uru. N'ime ngwa bara uru, a na-anabatakarị usoro nkwalite ọkwa ọtụtụ iji kwalite ike mmepụta yana nweta arụmọrụ.
Sistemụ sekit laser MOPA bụ nke nwere bọọdụ njikwa isi FPGA, isi iyi mgbapụta, isi mkpụrụ, bọọdụ ụgbọ ala ọkwọ ụgbọ ala, igwe ampilifaya, wdg. 900kHz). A na-etinye akara ngosi a site na isolator gaa na modul nyocha ngwa anya nke abụọ nke mejupụtara preamplifier na isi ihe na-amụba, na n'ikpeazụ na-ewepụta ike dị mkpụmkpụ-pulse laser site na ngwa anya isolator nwere ọrụ collimation. A na-eji ihe nchọpụta foto dị n'ime ya mee ihe mkpụrụ osisi ahụ iji nyochaa ike mmepụta ozugbo wee nyeghachi ya na bọọdụ njikwa isi FPGA. The isi akara osisi na-achịkwa mgbapụta mbanye sekit 1 na 2 iji nweta mmeghe na mmechi ọrụ nke mgbapụta isi mmalite 1, 2 na 3. Mgbefotodetectoradịghị achọpụta mmepụta ọkụ mgbaàmà, isi ihe nchịkwa ga-emechi isi iyi mgbapụta iji gbochie mmebi nke YDDCF na ngwaọrụ anya n'ihi enweghị ntinye ọkụ mkpụrụ.
The MOPA laser optical path system nakweere usoro ihe niile nwere eriri ma mejuo modul oscillation isi yana modul nkwalite ọkwa abụọ. The isi oscillation modul na-ewere a semiconductor laser diode (LD) na a Central wavelength nke 1064nm, a linewidth nke 3nm, na kacha na-aga n'ihu mmepụta ike nke 400mW dị ka mkpụrụ isi iyi, na-ejikọta ya na a fiber Bragg grating (FBG) na a reflectivity nke 99% @ 1063 n'ahịrị na a 9. usoro nhọrọ wavelength. Modul nkwalite nke 2-ogbo na-anakwere imepụta mgbapụta ntụgharị, yana YDDCF nwere dayameta isi nke 8 na 30μm ka ahaziri dịka mgbasa ozi nweta. Ọnụ ọgụgụ mgbapụta mgbapụta mgbapụta kwekọrọ na mkpuchi mkpuchi bụ 1.0 na 2.1dB / m @ 915nm, n'otu n'otu.
Oge nzipu: Sep-17-2025