Pehea e koho ai ma waena o ka modulator pae 780nm a me ka modulator ikaika?

Pehea e koho ai ma waena o 780nmmea hoʻololi paea me ka mea hoʻololi ikaika?
Ma ka pae nalu koʻikoʻi o 780nm, waiwai nui ka pilina ma waena o ka mālamalama a me ka mea - inā paha he hoʻololi laina D2 o nā ʻātoma cesium a i ʻole ka hoʻoponopono ʻana i ke kūlana quantum o nā ʻātoma rubidium, he mea pono ʻole ka kaohi pololei o ka laser ma kēia pae nalu. ʻO ka mea hana nui e hoʻokō ai i kēia hoʻoponopono ʻana, ʻo ia ka modulator electro-optic (Mea hoʻololi EOM). I waena o lākou, ʻoiai ʻo nā mea ʻeluamea hoʻololi pae electro-optica me ka electro-opticmea hoʻololi ikaikaNo ka ʻohana modulation electro-optic lithium niobate nā mea hana, loaʻa iā lākou ko lākou mau mākaukau ponoʻī a hoʻokō i kā lākou mau hana.
ʻO ka modulator pae electro optic, e like me ka inoa e hōʻike nei, e kālele ana i ka kaohi pololei o ke pae o nā hōʻailona optical. He maʻalahi kona ʻano - ua hui pū ʻia kahi alakaʻi nalu hoʻokahi me ʻelua mau electrodes ma nā ʻaoʻao ʻelua, a ua hoʻololi ʻia ka helu kuhikuhi refractive o ke kristal ma o ka hopena electro-optic, no laila e hoʻololi ana i ke pae o ka nalu māmā. Hoʻohana ka modulator pae ROF-PM series 780nm i ka ʻenehana hoʻololi proton holomua a he mau ʻano maikaʻi loa e like me ka pohō hoʻokomo haʻahaʻa (waiwai maʻamau 2.8dB), bandwidth modulation kiʻekiʻe (10GHz), a me ka voltage hapalua nalu haʻahaʻa (waiwai maʻamau 2.0V). Lawelawe nui ia i nā kahua o nā ʻōnaehana kamaʻilio optical space, cesium atomic time reference, spectral broadening, a me interferometry - i nā uaki optical a me nā ana pololei, ʻo nā modulator pae nā "hero ma hope o nā hiʻohiʻona" o ka laka pinepine a me ka hoʻopaʻa ʻana.
ʻO kamea hoʻololi ikaika electro-opticʻO ia ke kuleana no ka hoʻoponopono ʻana i ka ikaika (amplitude) o ke kukui. Hoʻokumu ʻia ia ma ka ʻano Mach Zehnder interferometer (MZI): ua māhele ʻia ka hōʻailona optical i ʻelua mau ala, kahi e hana ai i ka modulation phase a laila hui hou, e hoʻokō ana i ka modulation ikaika ma o nā hopena interference. Hoʻohana pū ka modulator ikaika moʻo ROF-AM-07 i ka ʻenehana hoʻololi proton, me ka pohō hoʻokomo o ka emi ma mua o 3dB, kahi lakio hoʻopau kuapo a hiki i ka 23dB, a me kahi voltage hapalua nalu maʻamau o 3V wale nō ma ka hopena RF. Uhi kāna mau noi maʻamau i ka kamaʻilio optical space, nā optics quantum, nā mea hana pulse, a me nā kahua ʻē aʻe - i nā hoʻokolohua ʻike quantum, hoʻohana pinepine ʻia nā modulators ikaika e "ʻoki" i nā lasers hoʻomau i nā pulses optical pae nanosecond.
Hiki ke ʻōlelo ʻia ʻo ka modulator pae ka mea pena kiʻi e hoʻomaʻemaʻe pono i ke pae o nā nalu māmā, ʻoiai ʻo ka modulator ikaika ka luna e kāohi maʻalahi i ka ikaika o ke māmā. Hoʻokō nā mea ʻelua kekahi i kekahi, e kākoʻo ana i nā olonā huelo i hana ʻia no FC/PC a me FC/APC, me ka hana paʻa ma kahi ākea o ka mahana o -10 ℃ ~ 60 ℃, e uhi ana i nā ala optical hoʻokolohua he nui mai nā uaki atomika maʻamau a hiki i nā optics quantum ʻoi loa, e hāʻawi ana i kahi hopena modulation optical i hoʻohui ʻia no ka noiʻi band 780nm.