Incamake ya Lasers

Incamake yaGupakira

Inzira itaziguye yo kubyaralaserPulses nukukongeramo modutor hanze yumuriro uhoraho. Ubu buryo burashobora kubyara picosecond picsecond, nubwo byoroshye, ariko guta imbaraga nimbaraga zoroheje nimbaraga zimpanuka ntibishobora kurenza imbaraga zoroheje. Kubwibyo, inzira nziza yo kubyara Laser Pulses ni uguhinduranya mu cyuho cya laser, kubika ingufu mu gihe cya gari ya moshi no kuyirekura mugihe. Ubuhanga bune buringaniye bukoreshwa muguhindura palses binyuze muri laser cavity ni ukunguka guhindura, q-guhinduranya (guhinduranya (gufunga ubusa), gufunga.

Inyungu Zihindura Impapuro ngufi ukoresheje Imbaraga za PUP. Kurugero, Semiconductor yunguka-lasers yahinduye paki ya nanoseconds kuri picoseconds ijana na modulation iriho. Nubwo imbaraga za pulse ari nke, ubu buryo burahinduka cyane, nko gutanga ibisubizo byo gusubiramo inshuro nyinshi na fagitire. Muri 2018, abashakashatsi bo muri kaminuza ya Tokiyo batangaje ko semiconductor yahinduye Serserpel Cheser, uhagarariye intambwe mu icupa ry'imyaka 40 tekinike.

Hakomeye nanosecond Pulses muri rusange ikorwa na Q-Yahinduwe Lasers, yasohotse mu ngendo nyinshi zizengurutse mu cyuho, kandi ingufu nyinshi ziri mu mpapuro nyinshi, bitewe n'ubunini bwa sisitemu. Ingufu ziciriritse (muri rusange munsi ya 1 μj) Pisosecond na Femtosecond Pulses ikorwa cyane cyane na lases ifunze. Hano haribintu kimwe cyangwa byinshi bya ultrashort muri reseneri ya laser ko ukwezi guhoraho. Buri wese mu maboko ya Pulse atuma ahishwa akoresheje indorerwamo bisohoka, kandi ingwate iri hagati ya mhz na 100 ghz. Igishushanyo gikurikira cyerekana gutatanya bisanzwe (ANDI) Disicpitative Soliton Femtosecondibikoresho bya fibre laser, ibyinshi muribyo bishobora kubakwa ukoresheje amahwa asanzwe (fibre, lens, impeta hamwe nameza yo kwimuka).

Cavity yoroshye tekinike irashobora gukoreshwa kuriQ-yahinduye lasersKugirango ubone paki ngufi hamwe na lases-ifunzwe muburyo bwo kongera ingufu za pulse hamwe nuburyo bwo hasi.

Igihe ntarengwa na donicy domaine Pulses
Imiterere yumurongo ya pulse hamwe nigihe muri rusange biroroshye kandi birashobora kugaragazwa na Gaussian na sech² imikorere. Igihe cya Pulse (kizwi kandi nka false ubugari bwa Pulse) gikunze kugaragara ku bugari bw'igice (FWHm), ni ukuvuga ubugari bw'imbaraga za optique nibura; Q-yahinduye laser ihene ya nanosecond Pulses zigufi
Mode-ifunze lasers itanga ultra-ngufi ya ulting (USP) muburyo bwa Picossekoms kuri femtoseConds. Amashanyarazi yihuta arashobora gupima gusa kuri Pitoseconds gusa ya Pitoseconds, kandi impibo ngufi irashobora gupimwa gusa nikoranabuhanga rya optique nka autocorrelators, igikeri nigitagangurirwa. Mugihe nanosecond cyangwa igihe kirekire cyane cyane bihindura ubugari bwabo mugihe bagenda, ndetse birenze urugendo rurerure, ultra-sulses ntoya irashobora kugira ingaruka kubintu bitandukanye:

Gutatanya birashobora kuvamo imbaraga nini zagutse, ariko urashobora gusabwa hamwe no gutanya. Igishushanyo gikurikira cyerekana uburyo Thortosekombe Femtosecond Puntressor yishyura microscope.

Kudashira muri rusange ntabwo bigira ingaruka ku bugari bw'impamba, ariko igura igikapu, bigatuma impimbaro ishobora guhungabanya mugihe cyo gukwirakwiza mugihe cyo gukwirakwiza mugihe cyo kwamamaza. Ubwoko ubwo aribwo bwose bwa fibre, harimo nibindi byitangazamakuru bifite imiyoboro mike, birashobora kugira ingaruka kumiterere yumurongo wa bandwid cyangwa ultra-ngufi, kandi kugabanuka kwa barweti birashobora gutuma kwaguka mugihe; Hariho kandi ibibazo ubugari bwa pulse bwa pulse yakubiswe cyane mugihe igitekerezo kibaye gito.