Faɗin bugun bugun jini na Laser Pulsed

Faɗin bugun bugun jini yana nufin tsawon lokacin bugun jini, kuma kewayon yawanci yakan tashi daga nanoseconds (ns, 10).^-9seconds) zuwa femtosecond (fs, 10^-15seconds). Pulsed Laser tare da daban-daban bugun jini nisa sun dace da daban-daban aikace-aikace:

- Shortan Nisa Buga (Picosecond/Femtosecond):

Mafi dacewa don mashin ingantattun kayan aiki masu rauni (misali, gilashi, sapphire) don rage fasa.

- Dogon Pulse Width (Nanosecond): Ya dace da yankan karfe, walda, da sauran aikace-aikace inda ake buƙatar tasirin zafi.

Laser na Femtosecond: Ana amfani da shi a aikin tiyatar ido (kamar LASIK) saboda yana iya yanke daidai gwargwado tare da ƙarancin lalacewa ga nama da ke kewaye.

- Ultrashort Pulses: An yi amfani dashi don nazarin matakai masu ƙarfi na ultrafast, kamar girgizar kwayoyin halitta da halayen sunadarai.

Faɗin bugun bugun jini yana rinjayar aikin laser, kamar ƙarfin kololuwa (P_kololuwa= karfin bugun bugun zuciya/ nisa. Ya fi guntu nisa na bugun jini, mafi girman iko mafi girma don makamashi guda ɗaya.) Har ila yau yana rinjayar tasirin thermal: tsayin bugun bugun jini, kamar nanoseconds, na iya haifar da tarawar thermal a cikin kayan, haifar da narkewa ko lalacewar thermal; gajeren nisa na bugun jini, kamar picoseconds ko femtoseconds, yana ba da damar “sarrafa sanyi” tare da raguwar wuraren da zafi ya shafa.

Fiber Laser yawanci sarrafa da daidaita bugun jini nisa ta amfani da wadannan dabaru:

1. Q-Switching: Yana haifar da bugun jini na nanosecond ta lokaci-lokaci canza asarar resonator don samar da bugun jini mai ƙarfi.

2. Yanayin Kulle: Yana haifar da picosecond ko femtosecond ultrashort bugun jini ta hanyar aiki tare da matakan tsayin daka a cikin resonator.

3. Modulators ko Abubuwan da ba na kan layi ba: Misali, ta yin amfani da Juyawar Polarization Nonlinear (NPR) a cikin zaruruwa ko abubuwan da za su iya ɗauka don damfara faɗin bugun jini.