Sumo pfupi yelasermodulatorteknolojia
Laser is high-frequency electromagnetic wave, nekuda kwekubatana kwayo kwakanaka, seyechinyakare magetsi emagetsi (seanoshandiswa muredhiyo neterevhizheni), semutakuri wave kutumira ruzivo. Maitiro ekurodha ruzivo pane laser anodaidzwa kuti modulation, uye mudziyo unoita maitiro aya unonzi modulator. Mukuita uku, iyo laser inoita semutakuri, nepo iyo yakaderera-frequency siginecha inotumira ruzivo inonzi modulated chiratidzo.
Laser modulation inowanzo kukamurwa mukati modulation uye ekunze modulation nzira mbiri. Yemukati modulation: inoreva iyo modulation mukuita kwelaser oscillation, ndiko kuti, nekugadzirisa chiratidzo chekushandura oscillation paramita yelaser, zvichikanganisa maitiro ekubuda kwelaser. Kune nzira mbiri dzemukati modulation: 1. Yakananga kudzora simba rekupomba re laser kugadzirisa kusimba kweiyo laser kubuda. Nekushandisa chiratidzo kudzora iyo laser simba rekupa, iyo laser inobuda simba inogona kudzorwa nechiratidzo. 2. Zvinhu zvekugadzirisa zvinoiswa mune resonator, uye hunhu hwemuviri hweizvi modulation zvinhu zvinodzorwa nechiratidzo, uyezve maparamita e resonator anoshandurwa kuti awane modulation yekubuda kwelaser. Chakanakira chemukati modulation ndechekuti iyo modulation inoshanda yakakwira, asi chakashata ndechekuti nekuti modulator iri mugomba, inowedzera kurasikirwa mugomba, kuderedza simba rekubuda, uye bandwidth yemodulator ichave zvakare. inogumira nepassband ye resonator. External modulation: zvinoreva kuti mushure mekuumbwa kwelaser, modulator inoiswa munzira yekuona kunze kwelaser, uye hunhu hwemodulator hunoshandurwa nechiratidzo chemodulator, uye kana laser ichipfuura nemumodulator, imwe paramende. yemwenje wave ichagadziriswa. Zvakanakira zvekunze modulation ndezvekuti simba rekubuda relaser harina kukanganiswa uye bandwidth yemutongi haina kuganhurirwa nepassband resonator. Izvo zvisingabatsiri ndeye yakaderera modulation kunyatsoshanda.
Laser modulation inogona kukamurwa kuita amplitude modulation, frequency modulation, phase modulation uye intensity modulation zvinoenderana neayo modulation zvivakwa. 1, amplitude modulation: amplitude modulation ndiyo oscillation iyo amplitude yemutakuri inoshanduka nemutemo weiyo modulated chiratidzo. 2, frequency modulation: kugadzirisa chiratidzo chekuchinja frequency yelaser oscillation. 3, chikamu modulation: kugadzirisa chiratidzo chekushandura chikamu che laser oscillation laser.
Electro-optical intensity modulator
Nheyo ye electro-optic intensity modulation ndeyekuziva kusimba kwemodulation zvinoenderana neiyo yekukanganisa musimboti wepolarized mwenje uchishandisa iyo electro-optic maitiro ekristaro. Iyo electro-optical mhedzisiro yekristaro inoreva chiitiko chekuti refractive index yekristaro inoshanduka pasi pechiito chekunze kwegetsi munda, zvichiita kuti pave nemusiyano wechikamu pakati pechiedza chinopfuura nekristaro munzira dzakasiyana dzepolarization, kuitira kuti polarization. mamiriro echiedza anoshanduka.
Electro-optic phase modulator
Electro-optical phase modulation musimboti: iyo chikamu Angle yelaser oscillation inoshandurwa nemutemo wemodulating chiratidzo.
Pamusoro peiyo iri pamusoro pe electro-optic intensity modulation uye electro-optic phase modulation, kune akawanda marudzi emalaser modulators, akadai se transverse electro-optic modulator, electro-optic yekufamba wave modulator, Kerr electro-optic modulator, acousto-optic modulator. , magnetooptic modulator, kupindira modulator uye spatial light modulator.
Nguva yekutumira: Aug-26-2024