He aha ka hui alapine optical modulator electro-optic? Māhele ʻEkahi

ʻO kahi hui alapine optical kahi spectrum i haku ʻia me kahi moʻo o nā ʻāpana alapine i hoʻokaʻawale like ʻia ma ka spectrum, hiki ke hana ʻia e nā lasers mode-locked, resonators, a i ʻolenā mea hoʻololi electro-optical. Nā hui alapine optical i hana ʻia enā mea hoʻololi electro-opticLoaʻa nā ʻano o ke alapine hana hou kiʻekiʻe, ka hoʻomaloʻo kūloko a me ka mana kiʻekiʻe, a pēlā aku, i hoʻohana nui ʻia i ka calibration mea hana, spectroscopy, a i ʻole ka physics kumu, a ua huki hou aku i ka hoihoi o nā mea noiʻi i nā makahiki i hala iho nei.

I kēia mau lā iho nei, ua paʻi ʻo Alexandre Parriaux a me nā poʻe ʻē aʻe mai ke Kulanui o Burgendi ma Palani i kahi pepa loiloi ma ka puke pai ʻo Advances in Optics and Photonics, e hoʻolauna ana i ka holomua noiʻi hou loa a me ka hoʻohana ʻana o nā hui alapine optical i hana ʻia emodulation electro-opticalHoʻokomo pū ia i ka hoʻolauna ʻana o ka optical frequency comb, ke ʻano a me nā ʻano o ka optical frequency comb i hana ʻia emea hoʻololi uila-optic, a ma ka hope loa e helu i nā hiʻohiʻona noi omea hoʻololi uila-opticʻO ke kāʻei alapine optical i nā kikoʻī, me ka hoʻopili ʻana o ka spectrum precision, ka hoʻopilikia ʻana o ke kāʻei optical pālua, ka hoʻoponopono ʻana o nā mea hana a me ka hanauna waveform arbitrary, a kūkākūkā i ke kumumanaʻo ma hope o nā noi like ʻole. ʻO ka mea hope loa, hāʻawi ka mea kākau i ka manaʻolana o ka ʻenehana kāʻei alapine optical modulator electro-optic.

01 Ka Moolelo

He 60 mau makahiki i hala aku nei i kēia mahina i hana ai ʻo Kauka Maiman i ka laser ruby ​​mua. ʻEhā mau makahiki ma hope mai, ʻo Hargrove, Fock lāua ʻo Pollack o Bell Laboratories ma ʻAmelika Hui Pū ʻIa nā mea mua i hōʻike i ka laka mode hana i loaʻa i nā lasers helium-neon, ua hōʻike ʻia ka spectrum laser mode-locking i ka manawa manawa ma ke ʻano he pulse emission, ma ka frequency domain he moʻo o nā laina pōkole discrete a equidistant, like loa me kā mākou hoʻohana ʻana i nā combs i kēlā me kēia lā, no laila ke kapa nei mākou i kēia spectrum "optical frequency comb". Kapa ʻia ʻo "optic frequency comb".

Ma muli o ka manaʻolana hoʻohana maikaʻi o ka huila optical, ua hāʻawi ʻia ka Nobel Prize in Physics i ka makahiki 2005 iā Hansch lāua ʻo Hall, nāna i hana i ka hana paionia ma ka ʻenehana huila optical, mai ia manawa, ua hiki ka hoʻomohala ʻana o ka huila optical i kahi pae hou. No ka mea, he ʻokoʻa nā koi o nā noi like ʻole no nā huila optical, e like me ka mana, ka mamao o nā laina a me ka nalu waena, ua alakaʻi kēia i ka pono e hoʻohana i nā ʻano hoʻokolohua like ʻole e hana i nā huila optical, e like me nā lasers mode-locked, micro-resonators a me ka modulator electro-optical.

Kiʻi 1 Ka laulā o ka ʻāpana manawa a me ka laulā o ka ʻāpana alapine (frequency) o ka hui alapine optical
Puna kiʻi: Nā hui alapine uila-optic

Mai ka ʻike ʻia ʻana o nā hui alapine optical, ua hana ʻia ka hapa nui o nā hui alapine optical me ka hoʻohana ʻana i nā lasers mode-locked. I loko o nā lasers mode-locked, hoʻohana ʻia kahi lua me ka manawa huakaʻi puni o τ e hoʻopaʻa i ka pilina pae ma waena o nā ʻano longitudinal, i mea e hoʻoholo ai i ka helu hana hou o ka laser, hiki ke mai megahertz (MHz) a i gigahertz (GHz).

Hoʻokumu ʻia ke kāʻei alapine optical i hana ʻia e ka micro-resonator ma nā hopena nonlinear, a ua hoʻoholo ʻia ka manawa huakaʻi puni e ka lōʻihi o ka micro-cavity, no ka mea, ʻoi aku ka liʻiliʻi o ka lōʻihi o ka micro-cavity ma mua o 1mm, ʻo ke kāʻei alapine optical i hana ʻia e ka micro-cavity ma ke ʻano he 10 gigahertz a i 1 terahertz. ʻEkolu mau ʻano microcavities maʻamau, microtubules, microspheres a me microrings. Ma ka hoʻohana ʻana i nā hopena nonlinear i nā fibers optical, e like me ka Brillouin scattering a i ʻole ka hui ʻana o nā nalu ʻehā, i hui pū ʻia me nā microcavities, hiki ke hana ʻia nā kāʻei alapine optical ma nā ʻumi nanometers. Eia kekahi, hiki ke hana ʻia nā kāʻei alapine optical ma ka hoʻohana ʻana i kekahi mau modulators acousto-optic.