Silicon Optical Modulatorfor fmcw
Sezvo isu tese tinoziva, chimwe chezvinhu zvakakosha muFMCW-based Lidar masisitimu ndiyo yakakwira mutsara modulator. Nhungamiro yaro inoshanda inoratidzwa mumufananidzo unotevera: UchishandisaDP-IQ ModulatorZvichienderanaImwe Sideband Modulation (SSB), kumusoro uye kudereraMZMShanda kuNoll Point, munzira uye zasi rutivi rweWM + WM, WM Mumufananidzo b, lr bhuruu ndiyo yemunharaunda FM chirpa chiratidzo, rx orange ndiyo chiratidzo chinoratidzwa, uye nekuda kweiyo doppler maitiro, iyo yekupedzisira yekurova chiratidzo inogadzira F1 naF2.
Chinhambwe uye kumhanya ndeizvi:
Izvi zvinotevera chinyorwa chakaburitswa naShanghai Jiaotong yunivhesiti muna 2021, nezveSSBVaRudzi vanogadzira FMCW yakavakirwa paSilicon Light Modulators.
Kuita kweMZM kunoratidzwa seinotevera: Musiyano wekuita weMusoro wepamusoro uye wepazasi ruoko ruoko rwakajaira rwakakura kwazvo. Resitoreti yekutakura sideband ratio ratio zvakasiyana neiyo frequency modulation chiyero, uye mhedzisiro yacho ichaipisisa sezvo kuwanda kwakawanda.
Muchiitiko chinotevera, mhedzisiro yeTestar system inoratidza kuti A / B ndicho chiratidzo chekumhanya pane imwe chete yekumhanya uye kune madaro akasiyana, Mhedzisiro yebvunzo yakasvika 15mm uye 0.775m / s.
Apa, chete kushandiswa kweSiliconOptical Modulatornekuti fmcw inokurukurwa. Muchokwadi, mhedzisiro yesilicon Optical modulator haina kunaka seiyo yeLino3 Modulator, kunyanya nekuti muSilicon Optical Modulator, iyo Chikamu Choclator's Coefficient / Junction Ungatance haina mutsara neiyo shanduko yeVoltage, sezvakaratidzwa mumufananidzo pazasi:
Ndiko kuti,
Hurumende inoburitsa hukama hweModulatorSisitimu iri seinotevera
Mhedzisiro yacho yakanyanya kurongedza:
Izvi zvinokonzeresa kuwedzera kweiyo yekurova frequency chiratidzo uye kuderera kwechiratidzo-kune-ruzha ratio. Saka ndeipi nzira yekuvandudza mutsara weiyo silicon mwenje modulator? Pano tinongokurukura hunhu hwechigadzirwa pachawo, uye hadzitauri nezve chirongwa chekurapa tichishandisa zvimwe zvivakwa zvebetsero.
Chimwe chezvikonzero zveVasiri-mutsara weCoudation chikamu chine muvhengi muChiedza Mucroguide chiri mukuparadzira kwakasiyana uye chiyero chekuchinja chakasarudzika chakasiyana nekuchinja kweiyo voltage. Sezvakaratidzwa mumufananidzo unotevera. Dunhu rekushayiwa rinopindirana neyekupindira rinorema rinochinja zvisingasviki pane izvo nekukanganisa kwechiedza.
Mufananidzo uyu unotevera unoratidza shanduko yechitatu-yekuraira-yekuraira kupindirana kwakashata uye yechipiri-Order kusawirirana neStters, ndiko kuti, iyo modulation frequency. Zvinogona kuoneka kuti kugona kwekutanga kwekusungwa kwekuremerwa kwakasimba kwakakwirira kupfuura izvo zvakareruka clutter. Naizvozvo, rimishoo rinobatsira kuvandudza mutsara.
Izvo zviri pamusoro zvakaenzana nekufunga c mune rc modhi yeMZM, uye pesvedzero ye r inofanirawo kutariswa. Izvi zvinotevera ndeye shanduko yekuchinja kweCDR3 ine nhare dzekuramba. Inogona kuoneka kuti zvidiki zvinoteedzana kupesana, iyo yakakura cdr3.
Chekupedzisira asi zvisiri zvishoma, mhedzisiro yeiyo silicon modulator haina kunyatsoita zvakaipa kupfuura iyo ye linbo3. Sezvakaratidzwa mumufananidzo pazasi, CDR3 yesilicon modulatorichave yakakwirira kupfuura iyo yeLinbo3 mune iyo yakazara bias kuburikidza nekugadzirwa zvine musoro kwechimiro uye kureba kwemodulator. Mamiriro ekuedzwa anoramba achiwirirana.
Mukupfupikisa, dhizaini yemhando yeSilicon mwenje inogona kungogadziriswa, uye kuti inogona kunyatso shandiswa muFMCWE SERICE, kana inogona kuzadzikiswa
Kutumira Nguva: Mar-18-2024