I-Photodetector Yokuhamba Kwe-Laser kanye Nokushintsha Kwesivinini
| Ububanzi obusebenzayo(mm) | I-Spectrum Yempendulo(nm) | I-Dark Current(nA) | ||
| XY052 | 0.8 | 400-1100 | 200 | Landa |
| XY053 | 0.8 | 400-1100 | 200 | Landa |
| XY062-1060-R5A | 0.5 | 400-1100 | 200 | Landa |
| XY062-1060-R8A | 0.8 | 400-1100 | 200 | Landa |
| XY062-1060-R8B | 0.8 | 400-1100 | 200 | Landa |
| XY063-1060-R8A | 0.8 | 400-1100 | 200 | Landa |
| XY063-1060-R8B | 0.8 | 400-1100 | 200 | Landa |
| XY032 | 0.8 | 400-850-1100 | 3-25 | Landa |
| XY033 | 0.23 | 400-850-1100 | 0.5-1.5 | Landa |
| XY035 | 0.5 | 400-850-1100 | 0.5-1.5 | Landa |
| XY062-1550-R2A | 0.2 | 900-1700 | 10 | Landa |
| XY062-1550-R5A | 0.5 | 900-1700 | 20 | Landa |
| XY063-1550-R2A | 0.2 | 900-1700 | 10 | Landa |
| XY063-1550-R5A | 0.5 | 900-1700 | 20 | Landa |
| XY062-1550-P2B | 0.2 | 900-1700 | 2 | Landa |
| XY062-1550-P5B | 0.5 | 900-1700 | 2 | Landa |
| XY3120 | 0.2 | 950-1700 | 8.00-50.00 | Landa |
| XY3108 | 0.08 | 1200-1600 | 16.00-50.00 | Landa |
| XY3010 | 1 | 900-1700 | 0.5-2.5 | Landa |
| XY3008 | 0.08 | 1100-1680 | 0.40 | Landa |
XY062-1550-R2A (XIA2A)InGaAs Photodetector
XY062-1550-R5A InGaAs APD
XY063-1550-R2A InGaAs APD
XY063-1550-R5A InGaAs APD
I-XY3108 InGaAs-APD
XY3120 (IA2-1) InGaAs APD
Incazelo Yomkhiqizo
Njengamanje, kunezindlela ezintathu zokucindezelwa kwe-avalanche ze-InGaAs APDs: ukucindezela okwenziwayo, ukucindezela okusebenzayo kanye nokutholwa kwesango. Ukucindezelwa okwenziwayo kwandisa isikhathi sokufa kwama-avalanche photodiode futhi kunciphisa ngokujulile izinga eliphezulu lokubala lomtshina, kuyilapho ukucindezela okusebenzayo kuyinkimbinkimbi kakhulu ngoba isekethe yokucindezela iyinkimbinkimbi kakhulu futhi i-cascade yesignali ijwayele ukuphuma. Imodi yokuthola isango okwamanje isetshenziswa ekutholweni kwesithombe esisodwa. Esetshenziswa kabanzi.
Ubuchwepheshe bokuthola i-single-photon bungathuthukisa ngempumelelo ukunemba nokusebenza kahle kokutholwa kwesistimu. Ohlelweni lokuxhumana nge-laser yasemkhathini, ukushuba kwenkambu yokukhanya kwesigameko kubuthakathaka kakhulu, kucishe kufinyelele ezingeni le-photon. Isignali etholwe isithwebuli sezithombe esijwayelekile izophazanyiswa noma ifakwe ngisho nawumsindo ngalesi sikhathi, kuyilapho ubuchwepheshe bokuthola i-single-photon busetshenziselwa Ukukala lesi signali yokukhanya ebuthaka kakhulu. Ubuchwepheshe bokubona be-photon eyodwa obususelwe kuma-avalanche photodiode e-InGaAs anesango anezici zamathuba aphansi okushaya kwe-pulse, i-jitter yesikhathi esincane kanye nenani lokubala eliphezulu.
Ukukhishwa kwe-laser kubambe iqhaza elibalulekile emikhakheni eminingi efana nokulawulwa kwezimboni, ukuzwa okukude kwezempi kanye nokuxhumana kwe-space Optical ngenxa yezici zayo ezinembile nezisheshayo, kanye nenqubekelaphambili eqhubekayo yobuchwepheshe be-optoelectronic. Phakathi kwazo, ngaphezu kobuchwepheshe bendabuko bokuhluka kwe-pulse, ezinye izixazululo ezintsha ezihlukanisiwe zihlala zihlongozwa, njengobuchwepheshe bokuthola i-photon eyodwa ngokusekelwe ohlelweni lokubala lwe-photon, okuthuthukisa ukusebenza kahle kokutholwa kwesignali ye-photon eyodwa futhi icindezela umsindo ukuze uthuthuke. uhlelo. ukunemba okuhlukahlukene. Ebangeni le-photon eyodwa, i-jitter yesikhathi ye-single-photon detector kanye nobubanzi be-laser pulse inquma ukunemba kwesistimu ehlukanisiwe. Eminyakeni yakamuva, amalaser e-picosecond anamandla aphezulu athuthuke ngokushesha, ngakho-ke i-jitter yesikhathi se-single-photon detectors ibe yinkinga enkulu ethinta ukunemba kokuxazulula kwezinhlelo zokuhlukahluka kwe-photon eyodwa.
