Ubugari bwa pulse ya Laser yasunitswe

Ubugari bwa pulse bivuga igihe impiswi zimara, kandi intera isanzwe iva kuri nanosekond (ns, 10^-9amasegonda) kuri femtosekonds (fs, 10^-15amasegonda). Gusunika laseri hamwe n'ubugari butandukanye bwa pulse birakwiriye mubikorwa bitandukanye:

- Ubugari Bugufi Bugufi (Picosekond / Femtosekond):

Nibyiza byo gutunganya neza ibikoresho byoroshye (urugero, ikirahure, safiro) kugirango ugabanye ibice.

- Ubugari Burebure Burebure (Nanosecond): Bikwiriye gukata ibyuma, gusudira, nibindi bikorwa aho hakenewe ingaruka zumuriro.

- Laser ya Femtosecond: Yifashishwa mu kubaga amaso (nka LASIK) kuko irashobora gukata neza hamwe no kwangirika kwinshi kwinyuma.

- Ultrashort Pulses: Yifashishwa mu kwiga ultrafast dinamike, nka vibrasi ya molekulari na reaction ya chimique.

Ubugari bwa pulse bugira ingaruka kumikorere ya laser, nkimbaraga zo hejuru (P._impinga= imbaraga za pulse / ubugari bwa pulse. Mugihe kigufi cy'ubugari bwa pulse, niko imbaraga zo hejuru zingufu zingufu imwe imwe.) Ihindura kandi ingaruka zubushyuhe: ubugari burebure bwa pulse, nka nanosekondi, burashobora gutera kwirundanya mubikoresho, biganisha ku gushonga cyangwa kwangirika kwubushyuhe; ubugari bugufi bwa pulse, nka picosekonds cyangwa femtosekond, bituma "gutunganya ubukonje" hamwe na zone zatewe n'ubushyuhe.

Fibre ya fibre mubisanzwe igenzura kandi igahindura ubugari bwa pulse ukoresheje tekinike zikurikira:

1.

2. Uburyo-Gufunga: Bitanga picosekond cyangwa femtosekond ultrashort pulses muguhuza uburyo bwa longitudinal imbere muri resonator.

3. Modulator cyangwa Ingaruka zidafite umurongo: Kurugero, ukoresheje Nonlinear Polarisation Rotation (NPR) muri fibre cyangwa imashini zuzura kugirango ugabanye ubugari bwa pulse.