Bipolar na-agbanwe agbanweusoro modulator
N'ọgbọ egwuregwu nkwurịta okwu ngwa anya dị elu na teknụzụ quantum, ndị modulators ọdịnala na-eche nnukwu mkpọmkpọ ọrụ ihu! Ịdị ọcha nke mgbaàmà ezughị oke, njikwa oge na-adịghị agbanwe agbanwe, na oke ike nke sistemu ike - ihe ịma aka ndị a na-egbochi mmepe teknụzụ.
Bipolarelectro-optical frasi modulatornwere ike nweta mgbanwe abụọ na-aga n'ihu n'usoro nke akara ngosi anya. Ha na-egosipụta njikọ dị elu, nkwụsị ntinye dị ala, bandwit modulation dị elu, obere voltaji ọkara ebili mmiri, na nnukwu mmebi ike anya. A na-eji ha eme ihe maka njikwa chirp anya na sistemụ nkwurịta okwu ngwa anya dị elu yana ọgbọ steeti jikọtara ọnụ na sistemụ nkesa igodo quantum. Ọgbọ nke sidebands na sistemu ROF na mbelata nke agbasa Brillouin (SBS) na-akpali akpali na sistemụ nkwukọrịta fiber optic, n'etiti mpaghara ndị ọzọ.
Nkebipolar phase modulatorna-enweta njikwa ziri ezi nke akụkụ nke akara ngosi anya site na mgbanwe usoro nke abụọ na-aga n'ihu, ma gosipụta uru pụrụ iche na nkwurịta okwu ngwa anya dị elu yana nkesa igodo quantum.
1. Njikọ dị elu na ọnụ ụzọ mmebi dị elu: Ọ na-anabata ihe eji ejikọta monolithic, bụ kọmpat na nha, ma na-akwado ike anya anya mmebi dị elu. Ọ nwere ike dakọtara ozugbo na isi iyi laser dị elu ma dabara adaba maka ọgbọ dị mma nke akụkụ akụkụ millimita na sistemụ ROF (Optical Wireless).
2. Chirp suppression na SBS management: Na elu-ọsọ na-ejikọta ọnụ, linearity nkeusoro modulationnwere ike kwụsịlata ụda mgbama ngwa anya nke ọma. Na nkwurịta okwu analọg optical fiber, site n'ịkwalite omimi nke modulation nke oge, mmetụta Brillouin na-akpali akpali (SBS) nwere ike ibelata nke ukwuu, si otú ahụ na-agbatị anya nnyefe.
Na nkesa igodo quantum (QKD), ọnọdụ jikọtara ọnụ nke ụzọ abụọ foton na-eje ozi dị ka "igodo quantum" maka nzikọrịta ozi echekwara - izi ezi nke nkwadebe ya na-ekpebi ihe onwunwe anaghị ege ntị nke igodo ahụ. A na-egosipụta "mgbanwe" nke modulator akụkụ bipolar n'ike ya iji gbanwee usoro usoro iji mee mgbanwe na nsogbu gburugburu ebe obibi nke njikọ eriri anya dị iche iche (dị ka mgbanwe okpomọkụ na nkwụsị nke oge nke nrụgide ígwè ọrụ kpatara), na-eme ka ọgbọ dị elu rụọ ọrụ nke abụọ foton jikọtara ọnụ. A na-enweta "nkwụsi ike" ahụ site na njikwa okpomọkụ ziri ezi na teknụzụ ugboro ugboro nke na-egbochi mkpọtụ usoro n'okpuru oke mkpọtụ ma gbochie nrụrụ nke steeti quantum n'oge mgbasa ozi. Akụkụ abụọ a nke "mgbanwe + nkwụsi ike" ọ bụghị naanị na-eme ka ọnụọgụ nkesa nkesa dị mkpụmkpụ dị na netwọk mpaghara mepere emepe (dị ka obere njehie nke na-erughị 1% n'ime kilomita 50), ma na-akwadokwa iguzosi ike n'ezi ihe nke igodo na nnyefe dị anya na netwọk obodo (dị ka ihe karịrị otu narị kilomita n'ofe obodo), na-aghọ isi ihe na-eme ka netwọk na-arụ ọrụ nke ọma.
Oge nzipu: Jul-22-2025