Ndị nchọpụta foto OFC2024

Taa ka anyị leba anya na OFC2024fotodetector, nke gụnyere GeSi PD/APD, InP SOA-PD, na UTC-PD.

1. UCDAVIS chọpụtara na Fabry-Perot nke nwere ụda olu dị nro nke 1315.5nm na-anaghị agbanwe agbanwe.ihe nchọpụta fotonwere obere ikike, nke a na-eme atụmatụ na ọ bụ 0.08fF. Mgbe echiche ahụ bụ -1V (-2V), ọkụ gbara ọchịchịrị bụ 0.72 nA (3.40 nA), ọnụego nzaghachi bụkwa 0.93a /W (0.96a /W). Ike anya zuru oke bụ 2 mW (3 mW). Ọ nwere ike ịkwado nnwale data ọsọ ọsọ 38 GHz.
Ihe osise a na-egosi nhazi nke AFP PD, nke nwere onye ndu ebili mmiri ejikọtara na Ge-on-Si fotodetectornwere ntuziaka SOI-Ge n'ihu nke na-enweta njikọ nha nhata mode > 90% yana ntụgharị uche nke <10%. Azụ bụ Bragg reflector kesara (DBR) nke nwere ntụgharị uche nke > 95%. Site na nhazi oghere kachasị mma (ọnọdụ nhazi usoro njem gburugburu), enwere ike iwepụ ntụgharị uche na nnyefe nke AFP resonator, na-eme ka nnabata nke ihe nchọpụta Ge ruo ihe fọrọ nke nta ka ọ bụrụ 100%. N'ime bandwit 20nm dum nke ogologo ebili mmiri etiti, R+T <2% (-17 dB). Obosara Ge bụ 0.6µm na a na-eme atụmatụ na capacitance bụ 0.08fF.

2, Mahadum Sayensị na Teknụzụ Huazhong mepụtara silicon germaniumfotodiode nnukwu mmiri, bandwit >67 GHz, uru >6.6. SACMihe nchọpụta foto APDA na-emepụta usoro njikọ nke njikọ pipin transverse na ikpo okwu optical silicon. Intrinsic germanium (i-Ge) na intrinsic silicon (i-Si) na-eje ozi dị ka oyi akwa na-amịkọrọ ìhè na oyi akwa okpukpu abụọ nke elektrọn, n'otu n'otu. Mpaghara i-Ge nke nwere ogologo 14µm na-ekwe nkwa nnabata ìhè zuru oke na 1550nm. Mpaghara i-Ge na i-Si dị obere na-enyere aka ịbawanye njupụta fotocurrent na ịgbasa bandwit n'okpuru voltaji bias dị elu. A tụrụ maapụ anya APD na -10.6 V. Site na ike anya ntinye nke -14 dBm, egosiri maapụ anya nke akara 50 Gb/s na 64 Gb/s OOK n'okpuru, SNR a tụrụ bụ 17.8 na 13.2 dB, n'otu n'otu.

3. Ngwaọrụ nnwale BiCMOS nke dị sentimita asatọ nke IHP na-egosi germaniumihe nchọpụta foto PDnwere obosara nke ihe dị ka 100 nm, nke nwere ike imepụta ubi eletriki kachasị elu na oge mbufe foto kacha mkpụmkpụ. Ge PD nwere bandwit OE nke 265 GHz@2V@ 1.0mA DC photocurrent. Egosiri usoro usoro a n'okpuru. Ihe kachasị mkpa bụ na a na-ahapụ SI agwakọta ion ọdịnala, a na-ejikwa atụmatụ ịkọ uto iji zere mmetụta nke itinye ion na germanium. Ọkụ gbara ọchịchịrị bụ 100nA,R = 0.45A /W.
4, HHI na-egosi InP SOA-PD, nke gụnyere SSC, MQW-SOA na foto nchọpụta ọsọ dị elu. Maka O-band. PD nwere nzaghachi nke 0.57 A/W na ihe na-erughị 1 dB PDL, ebe SOA-PD nwere nzaghachi nke 24 A/W na ihe na-erughị 1 dB PDL. Bandwit nke abụọ bụ ~60GHz, enwere ike ịkọwa ọdịiche nke 1 GHz na ugboro resonance nke SOA. Ahụghị mmetụta ụkpụrụ na onyonyo anya n'ezie. SOA-PD na-ebelata ike anya achọrọ site na ihe dị ka 13 dB na 56 GBaud.

5. ETH tinyere ụdị nke abụọ n'ọrụ iji melite GaInAsSb/InP UTC-PD, yana bandwit nke 60GHz@ efu bias na ike mmepụta dị elu nke -11 DBM na 100GHz. N'ịga n'ihu na nsonaazụ ndị gara aga, site na iji ikike njem eletrọn nke GaInAsSb emelitere. N'akwụkwọ a, akwa nnabata kachasị mma gụnyere GaInAsSb nke 100 nm na GaInAsSb na-enweghị nsogbu nke 20 nm. Akwa NID na-enyere aka imeziwanye nzaghachi zuru oke ma na-enyekwa aka ibelata ikike zuru oke nke ngwaọrụ ahụ ma melite bandwit. 64µm2 UTC-PD nwere bandwit efu nke 60 GHz, ike mmepụta nke -11 dBm na 100 GHz, na ugbu a saturation nke 5.5 mA. Na mgbanwe nke 3 V, bandwit ahụ na-abawanye ruo 110 GHz.

6. Innolight guzobere ụdị nzaghachi ugboro ugboro nke germanium silicon photodetector dabere na ịtụle nke ọma doping ngwaọrụ, nkesa ubi eletriki na oge nnyefe ihe eji ebu foto. N'ihi mkpa maka nnukwu ike ntinye na nnukwu bandwidth n'ọtụtụ ngwa, nnukwu ntinye ike anya ga-eme ka mbelata na bandwidth, omume kachasị mma bụ ibelata ntinye ihe eji ebu na germanium site na nhazi usoro.

7, Mahadum Tsinghua chepụtara ụdị atọ nke UTC-PD, (1) nhazi 100GHz bandwit double drift layer (DDL) nwere ike saturation dị elu UTC-PD, (2) nhazi 100GHz bandwit double drift layer (DCL) nwere oke nzaghachi UTC-PD, (3) 230 GHZ bandwit MUTC-PD nwere oke ike saturation, Maka ọnọdụ ngwa dị iche iche, ike saturation dị elu, oke bandwit na oke nzaghachi nwere ike ịba uru n'ọdịnihu mgbe ị na-abanye n'oge 200G.