A. Pfungwa yema lasers anokurumidza zvikuru
MaLaser eUltrafast anowanzoreva maLaser ane mode-locked anoshandiswa kuburitsa mapulse mapfupi, semuenzaniso, mapulse e femtosecond kana picosecond duration. Zita rakarurama ringave ultrashort pulse laser. MaLaser ane Ultrashort pulse anenge ari maLaser ane mode-locked, asi gain switching effect inogonawo kugadzira mapulse mapfupi.
B. Rudzi rwelaser inokurumidza zvikuru
1. Malaser eTi-sapphire, anowanzo vharwa neKerr lens mode-locked, anogona kugadzira mapulse mapfupi se5 fs muhurefu. Avhareji yesimba rawo rekuburitsa rinowanzova mazana mashoma emamilliwatts, ne pulse repetition rates ye, ngatitii, 80MHz uye makumi emafemtoseconds kana pasi, uye pulse durations yemakumi emafemtoseconds kana pasi, zvichikonzera simba rakanyanya. Asi malaser etitanium-sapphire anoda kupomba chiedza kubva kune mamwe malaser egirini, izvo zvinoita kuti ave akaomarara uye anodhura.
2. Kune ma laser akasiyana-siyana anopombwa ne diode akavakirwa, semuenzaniso, makristaro e laser ane ytterbium-doped (crystal kana glass) kana chromium-doped laser, anowanzo shandisa SESAM passive mode-locking. Kunyangwe nguva yekurova kwemoyo yema laser ane diode-pumped isiri pfupi senguva yekurova kwemoyo yema laser e titanium-sapphire, ma laser ane diode-pumped anogona kufukidza nzvimbo yakakura yema parameter maererano nenguva yekurova kwemoyo, kurova kwemoyo kunodzokorora, uye avhareji yesimba (ona pazasi).
3. Malaser efiber akavakirwa pafiber yegirazi akaiswa zvinhu zvisingawanzoitiki zvepasi anogonawo kuvharwa nemode-locked, semuenzaniso, achishandisa nonlinear polarization rotation kana SESAM. Ane muganho kupfuura malaser akawanda kana tichitarisa simba repakati, kunyanya simba repamusoro, asi anogona kusanganiswa zviri nyore nemaamplifiers efiber. Nyaya inotaura nezvemalaser efiber ane mode-locked inopa rumwe ruzivo.
(4) ma laser e diode akavharirwa nemode anogona kuva zvishandiso zvakakosha kana ma laser e diode ekunze, uye anogona kushanda, asingashande kana akavharirwa nemode yakasanganiswa. Kazhinji, ma laser e diode akavharirwa nemode anoshanda nedanho repamusoro (zviuru zvakati wandei zve megahertz) repetition rate pasimba repakati nepakati repulse.
Maoscillator e-laser anokurumidza zvikuru anogona kuva chikamu chemasisitimu e-laser anokurumidza zvikuru, ayo anogonawo kusanganisira amplifier inokurumidza zvikuru (yakadai se-fiber optic amplifier) kuwedzera simba repamusoro uye simba repakati rekuburitsa simba.
Nguva yekutumira: Chikumi-20-2023