Igenzura rya fibre polarisation ni iki?

Igenzura rya fibre polarisation ni iki?
Igisobanuro: Igikoresho gishobora kugenzura polarisiyasi yumucyo muri fibre optique. Benshiibikoresho bya fibre optique, nka interterometero, bisaba ubushobozi bwo kugenzura polarisiyasi yumucyo muri fibre. Kubwibyo, ubwoko butandukanye bwa fibre polarisiyoneri yateguwe.
Igenzura ryamatwi muri fibre optique
Bisanzweumugenzuzibigerwaho no kugonda (cyangwa guhinduranya) fibre optique kugirango ubone birefringence. Gutinda kwose (ingano ya birefringence) iringaniza n'uburebure bwa fibre kandi ihwanye na radiyo yunamye. Bifitanye isano kandi nubwoko bwa fibre optique. Rimwe na rimwe, fibre optique irashobora gukomeretsa inshuro nyinshi hamwe na radiyo yunamye kugirango ubone gutinda kwa λ / 2 cyangwa λ / 4.

Igishushanyo 1: Igenzura ryamatwi yumutwi, rigizwe na fibre optique eshatu zishobora kuzunguruka ku murongo wa fibre yibyabaye.
Mubisanzwe, ibishishwa bitatu bikoreshwa mugukora inkingi, hamwe na coil yo hagati nkigice kimwe cya kabiri cyumurongo naho impande zombi nkicyapa cya kane. Buri coil irashobora kuzenguruka kumurongo wibyabaye hamwe na fibre optique isohoka. Muguhindura icyerekezo cyibiceri bitatu, polarisiyasi yuburebure bwumurongo wihariye ushobora guhinduka muburyo ubwo aribwo bwose busohoka. Nyamara, ingaruka kuri polarisiyasi nazo zijyanye n'uburebure. Ku mbaraga zo hejuru cyane (mubisanzwe bibaho muri ultra short pulses), kuzenguruka kutagira umurongo bibaho. Diameter ya fibre optique coil ntishobora kuba nto cyane, bitabaye ibyo kunama bizana igihombo cyinyongera. Ubundi bwoko bworoshye, kandi butumva neza kutagira umurongo, bukoresha birefringence ikomeye (kubungabunga polarisation) ya fibre optique aho gukoresha fibre.
GucomekaUmugenzuzi wa Fibre
Hariho igikoresho gishobora kubona impinduka zihindagurika, zishobora kugabanya uburebure bwa fibre optique kurwego runaka mugihe gitandukanye. Mugihe kizunguruka buhoro buhoro no guhunika fibre optique ikikije umurongo wacyo, no kuyizirika ku ntera runaka uvuye ku gice cyo guhunika, ibisohoka byose polarisiyasi irashobora kuboneka. Mubyukuri, imikorere imwe nki Babinet Soleil indishyi (ubwoko bwinshiigikoreshoikubiyemo imigozi ibiri ya birefringent) irashobora kuboneka, nubwo amahame yakazi yabo atandukanye. Imyanya myinshi yo kwikuramo irashobora kandi gukoreshwa, aho igitutu gusa, ntabwo kizenguruka impande, impinduka. Guhindura igitutu mubisanzwe bigerwaho ukoresheje transducers ya piezoelectric. Iki gikoresho gishobora kandi gukora nka polarizer, aho piezoelectric itwarwa numuyoboro utandukanye cyangwa ibimenyetso bidasanzwe.