Masu gano hoto na OFC2024

Yau bari mu kalli OFC2024masu daukar hoto, waɗanda galibi suka haɗa da GeSi PD/APD, InP SOA-PD, da UTC-PD.

1. UCDAVIS ta gano raunin sauti mai ƙarfi na 1315.5nm wanda ba shi da daidaito Fabry-Perotna'urar gano hototare da ƙaramin ƙarfin aiki, wanda aka kiyasta shine 0.08fF. Idan aka yi la'akari da cewa ƙarfin lantarki mai duhu shine 0.72 nA (3.40 nA), kuma ƙimar amsawa shine 0.93a /W (0.96a /W). Ƙarfin gani mai cikakken haske shine 2 mW (3 mW). Zai iya tallafawa gwaje-gwajen bayanai masu sauri na 38 GHz.
Zane mai zuwa yana nuna tsarin AFP PD, wanda ya ƙunshi jagorar raƙuman ruwa mai haɗin Ge-on-Si na'urar gano hototare da jagorar waveguide na gaba SOI-Ge wanda ke cimma haɗin yanayin daidaitawa sama da kashi 90% tare da hasken haske na <10%. Baya shine mai nuna haske na Bragg (DBR) mai rarrabawa tare da hasken haske na >95%. Ta hanyar ƙirar ramin da aka inganta (yanayin daidaitawa na zagaye-tafiye), ana iya kawar da hasken da watsawar AFP resonator, wanda ke haifar da shaƙar Ge na'urar ganowa zuwa kusan 100%. A cikin dukkan faɗin 20nm na tsawon tsayin tsakiya, R+T <2% (-17 dB). Faɗin Ge shine 0.6µm kuma ana kiyasta ƙarfin ikon shine 0.08fF.

2, Jami'ar Kimiyya da Fasaha ta Huazhong ta samar da wani sinadari mai suna silicon germaniumphotodiode na zaftarewar dusar ƙanƙara, bandwidth > 67 GHz, riba > 6.6. SACMna'urar gano hoto ta APDAn ƙera tsarin mahaɗin bututun mai ratsawa a kan wani dandamali na gani na silicon. Germanium na ciki (i-Ge) da silicon na ciki (i-Si) suna aiki a matsayin Layer mai ɗaukar haske da kuma Layer mai ninka electron, bi da bi. Yankin i-Ge mai tsawon 14µm yana ba da tabbacin isasshen ɗaukar haske a 1550nm. Ƙananan yankuna na i-Ge da i-Si suna da amfani wajen ƙara yawan hasken da kuma faɗaɗa bandwidth a ƙarƙashin babban ƙarfin lantarki. An auna taswirar ido ta APD a -10.6 V. Tare da ƙarfin gani na shigarwa na -14 dBm, an nuna taswirar ido na siginar OOK 50 Gb/s da 64 Gb/s da aka auna a ƙasa, kuma SNR da aka auna shine 17.8 da 13.2 dB, bi da bi.

3. Kayan aikin gwajin IHP mai inci 8 na BiCMOS suna nuna germaniumna'urar gano hoto ta PDtare da faɗin ƙarshen ƙarfe na kimanin nm 100, wanda zai iya samar da mafi girman filin lantarki da kuma ɗan gajeren lokacin ɗaukar hoto. Ge PD yana da bandwidth na OE na 265 GHz@2V@ 1.0mA DC photocurrent. An nuna kwararar aikin a ƙasa. Babban fasalin shine cewa an yi watsi da dasa ion na SI na gargajiya, kuma an ɗauki tsarin ƙwanƙwasa girma don guje wa tasirin dasa ion akan germanium. Wutar lantarki mai duhu shine 100nA,R = 0.45A /W.
4, HHI tana nuna InP SOA-PD, wanda ya ƙunshi SSC, MQW-SOA da na'urar gano hoto mai sauri. Ga O-band. PD tana da amsawar A na 0.57 A/W tare da ƙasa da 1 dB PDL, yayin da SOA-PD tana da amsawar A/W na 24 A/W tare da ƙasa da 1 dB PDL. Bandwidth na biyu shine ~60GHz, kuma bambancin 1 GHz za a iya danganta shi da mitar resonance na SOA. Ba a ga tasirin tsari a ainihin hoton ido ba. SOA-PD yana rage ƙarfin gani da ake buƙata da kusan 13 dB a 56 GBaud.

5. Tsarin ETH ya inganta GaInAsSb/InP UTC-PD, tare da bandwidth na 60GHz@ sifili bias da kuma babban ƙarfin fitarwa na -11 DBM a 100GHz. Ci gaba da sakamakon da suka gabata, ta amfani da ingantattun ƙarfin jigilar lantarki na GaInAsSb. A cikin wannan takarda, matakan sha da aka inganta sun haɗa da GaInAsSb mai yawan doped na 100 nm da GaInAsSb mara iyaka na 20 nm. Tsarin NID yana taimakawa wajen inganta amsawar gabaɗaya kuma yana taimakawa wajen rage ƙarfin na'urar gaba ɗaya da inganta bandwidth. 64µm2 UTC-PD yana da bandwidth sifili na 60 GHz, ƙarfin fitarwa na -11 dBm a 100 GHz, da kuma saturation current na 5.5 mA. A juyi bias na 3 V, bandwidth yana ƙaruwa zuwa 110 GHz.

6. Innolight ta kafa tsarin amsawar mita na na'urar gano ƙwayoyin cuta ta germanium silicon bisa la'akari da cikakken la'akari da allurar na'ura, rarraba filin lantarki da lokacin canja wurin ɗaukar hoto. Saboda buƙatar babban ƙarfin shigarwa da babban bandwidth a aikace-aikace da yawa, babban shigarwar wutar lantarki zai haifar da raguwar bandwidth, mafi kyawun aikin shine rage yawan jigilar ƙwayoyin cuta a cikin germanium ta hanyar ƙirar tsari.

7, Jami'ar Tsinghua ta tsara nau'ikan UTC-PD guda uku, (1) tsarin 100GHz bandwidth mai layyar drift ...