Njikwa obosara nke Pulsenjikwa obi laserteknụzụ
Njikwa pulse nke laser bụ otu n'ime njikọ dị mkpa nateknụzụ laser, nke na-emetụta arụmọrụ na mmetụta ojiji nke laser ozugbo. Akwụkwọ a ga-ahazi njikwa obosara pulse, njikwa ugboro pulse na teknụzụ modulation metụtara ya n'usoro, ma na-agba mbọ ịbụ ọkachamara, zuru oke na ezi uche.
1. Echiche nke obosara obi
Obosara Pulse nke laser na-ezo aka n'oge nke pulse laser, nke bụ paramita dị mkpa iji kọwaa njirimara oge nke mmepụta laser. Maka laser pulse dị mkpụmkpụ (dịka nanosecond, picosecond na femtosecond lasers), obosara pulse dị mkpụmkpụ, ike kacha elu ka elu, na mmetụta okpomọkụ dị obere, nke dabara adaba maka igwe nhazi ziri ezi ma ọ bụ nyocha sayensị.
2. Ihe ndị na-emetụta obosara pulse laser. Ọtụtụ ihe na-emetụta obosara pulse nke laser, ọkachasị akụkụ ndị a:
a. Àgwà nke ihe na-eme ka ihe dị ndụ nweta uru. Ụdị ihe na-eme ka ihe dị ndụ nweta uru dị iche iche nwere nhazi ọkwa ike pụrụ iche na ndụ fluorescence, nke na-emetụta kpọmkwem mmepụta na obosara mkpali nke ihe na-eme ka ihe dị ndụ nweta ìhè ọkụ. Dịka ọmụmaatụ, ihe na-eme ka ihe dị ndụ nweta ìhè ọkụ ...
Nhazi nke oghere laser nwere mmetụta dị ukwuu na obosara pulse, gụnyere: ogologo oghere ahụ, ogologo oghere laser na-ekpebi oge achọrọ ka ìhè na-agagharị ugboro ugboro n'ime oghere ahụ, oghere dị ogologo ga-eduga na obosara pulse dị ogologo, ebe oghere dị mkpụmkpụ na-enyere aka imepụta pulse dị mkpụmkpụ; Reflectance: Reflector nwere reflectance dị elu nwere ike ime ka njupụta photon dị n'ime oghere ahụ dịkwuo elu, si otú a na-eme ka mmetụta ga-abawanye, mana reflectance dị elu nwere ike ime ka mfu dị n'ime oghere ahụ dịkwuo elu ma metụta nkwụsi ike obosara pulse; Ọnọdụ nke gain medium na ọnọdụ nke gain medium n'ime oghere ahụ ga-emetụtakwa oge mmekọrịta dị n'etiti photon na gain medium, wee metụta pulse obosara.
c. Teknụzụ mgbanwe Q na teknụzụ mkpọchi ụdịdị bụ ụzọ abụọ dị mkpa iji mezuo mmepụta laser pulse na nhazi obosara pulse.
d. Isi iyi mgbapụta na ụdị mgbapụta ike nke isi iyi mgbapụta na nhọrọ nke ụdị mgbapụta ahụ nwekwara mmetụta dị mkpa na obosara mkpali ahụ.
3. Ụzọ njikwa obosara obi nkịtị
a. Gbanwee ụdị ọrụ nke laser: ụdị ọrụ nke laser ahụ ga-emetụta obosara pulse ya ozugbo. Enwere ike ijikwa obosara pulse site na ịgbanwe paramita ndị a: ugboro na ike nke isi iyi mgbapụta ahụ, ntinye ike nke isi iyi mgbapụta ahụ, na ogo nke mgbanwe ọnụọgụgụ ihe dị na usoro uru; Ngosipụta nke lensị mmepụta na-agbanwe arụmọrụ nzaghachi na resonator, si otú a na-emetụta usoro nhazi pulse ahụ.
b. Njikwa ọdịdị mkpali: gbanwee obosara mkpali ahụ n'ụzọ na-apụtaghị ìhè site n'ịgbanwe ọdịdị nke mkpali laser.
c. Mgbanwe Ugbu a: Site n'ịgbanwe ọkụ eletrik nke ọkọnọ ike iji chịkwaa nkesa nke ọkwa ike eletrọniki na igwe laser, wee gbanwee obosara pulse. Usoro a nwere ọsọ nzaghachi ngwa ngwa ma dabara adaba maka ọnọdụ ngwa nke chọrọ mgbanwe ngwa ngwa.
d. Mgbanwe mgbanwe: site n'ịchịkwa ọnọdụ mgbanwe nke laser iji gbanwee obosara pulse.
e. Njikwa okpomọkụ: mgbanwe okpomọkụ ga-emetụta nhazi ọkwa ike elektrọn nke laser ahụ, si otú a na-emetụta obosara pulse na-apụtaghị ìhè.
f. Jiri teknụzụ nhazi: Teknụzụ nhazi bụ ụzọ dị irè isi chịkwaa obosara mkpali nke ọma.
Mgbanwe laserteknụzụ bụ teknụzụ nke na-eji laser dị ka ihe na-ebu ma na-ebu ozi na ya. Dịka mmekọrịta ya na laser si dị, enwere ike kewaa ya na modulation dị n'ime na modulation dị n'èzí. modulation dị n'ime na-ezo aka na mode modulation ebe a na-ebu akara modulated n'usoro oscillation laser iji gbanwee paramita oscillation laser wee si otú a gbanwee njirimara mmepụta laser. Mgbanwe dị n'èzí na-ezo aka na mode modulation ebe a na-agbakwunye akara modulation mgbe e guzobere laser, a na-agbanwekwa njirimara laser mmepụta na-agbanweghị paramita oscillation nke laser.
Enwere ike kewaa teknụzụ mgbanwe dịka ụdị nhazi ihe eji ebu ihe si dị, gụnyere nhazi analog, nhazi ihe eji emegharị ihe, nhazi dijitalụ (mmezi koodu pulse); Dịka paramita nhazi ihe si dị, a na-ekewa ya n'ime nhazi ike na nhazi ihe eji emegharị ihe.
Ihe na-eme ka ike dịkwuo elu: A na-achịkwa obosara obi site na ịgbanwe mgbanwe nke ike ọkụ laser.
Nhazi usoro: A na-agbanwe obosara obi site na ịgbanwe usoro nke ebili mmiri ọkụ.
Igwe okwu mkpọchi usoro: Site na mgbanwe olu mkpọchi usoro, enwere ike ịgbanwe obosara pulse laser nke ọma.
Oge ozi: Maachị-24-2025