Chiilaser modulationteknolojia
Chiedza imhando yemagetsi emagetsi ane frequency yakakwirira. Iine kuwirirana kwakanaka uye nekudaro, senge mafungu emagetsi ekare (seredhiyo nematerevhizheni), inogona kushandiswa semutakuri wekufambisa ruzivo. Mashoko "akatakurwa" nelaser (kusanganisira mutauro, zvinyorwa, mifananidzo, zviratidzo, nezvimwewo) anotumirwa kune anogamuchira kuburikidza nedzimwe nzira dzekutumira (atmosphere, optical fibers, nezvimwewo), uye inobva yaonekwa uye yakadzorerwa kumashoko ekutanga neanogamuchira maziso. Maitiro ekurodha ruzivo pane laser anodaidzwa kuti modulation, uye mudziyo unozadzisa izvi unonzi modulator. Pakati pavo, laser inonzi carrier wave; Iyo yakaderera-frequency ruzivo inobata basa rekutonga inonzi modulated chiratidzo.
Laser modulation inogona kukamurwa kuita yemukati modulation uye yekunze modulation.
Yemukati modulation: Inoreva kurodha kwemasaini masaini panguva ye laser oscillation process, ndiko kuti, kushandisa masaini masaini kushandura oscillation paramita yelaser, nekudaro ichichinja iyo laser inobuda maitiro kuti iwane modulation. Iyo nzira dzemukati modulation dzinosanganisira: 1. Yakananga kudzora laser pombi simba rekupa kuti uwane kusimba kweiyo modulated inobuda laser. Simba uye kuvapo kwezvakabuda zvose zvinodzorwa nemagetsi. Kana iyo chiratidzo chekufambiswa ichishandiswa kudzora iyo laser magetsi, ichiita shanduko iripo kuburikidza nelaser inodzorwa nechiratidzo, ipapo iyo yakabudiswa laser inodzorwawo nechiratidzo. 2. Modulation zvinhu zvinoiswa mukati megomba resonant, uye hunhu hwemuviri hwezvinhu zvemodulation zvinodzorwa nezviratidzo zvekuchinja, nekudaro kushandura maparamendi eiyo resonant cavity uye kuchinja laser kubuda maitiro kuti awane modulation. Kubatsira kwemukati modulation ndiyo yakakwirira modulation kunyatsoshanda. Izvo zvinokanganisa ndezvekuti sezvo modulator yakaiswa mukati megomba, zvakaenzana nekuwedzera kurasikirwa mukati megomba, kuderedza simba rekubuda, uye bandwidth yemodulator inogumira nepassband resonant cavity.
Yekunze modulation: Inoreva kuiswa kwemodulator munzira yekuona kunze kwelaser mushure mekugadzirwa kwelaser, uye hunhu hwemodulator hunoshandurwa nechiratidzo chemodulation. Kana iyo laser ichipfuura nemu modulator, imwe paramende yemwenje wave inogadziriswa. Kubatsira kwekunze modulation ndeyekuti haina kukanganisa simba rekubuda re laser uye bandwidth yejenereta haina kuganhurirwa nepassband ye resonant cavity. Iyo drawback ndiyo yakaderera modulation kunyatsoshanda.
Laser modulation inogona kukamurwa kuita amplitude modulation, frequency modulation, phase modulation uye intensity modulation, etc. zvinoenderana nehunhu hwayo. Iwo anowirirana akajairika modulators anosanganisiraphase modulators, intensity modulators, etc. Kunze kweiyo yambotaurwa ye electro-optic intensity modulation uye electro-optic phase modulation, Kune akawanda marudzi eLaser modulators, seyachinjikaelectro-optic modulators, electro-optic yekufamba wave modulators, Kerr electro-optic modulators, acousto-optic modulators, magneto-optic modulators, kupindira modulators uye spatial light modulators, nezvimwe.
Nguva yekutumira: May-13-2025