Kunganiizinhlelo ze-fiber optic ezinamandla aphezuluithambekele kakhulu emiphumeleni engeyona eqondile?
In izinhlelo ze-fiber optic, izinkinga eziningi cishe azikaze zenzeke ngaphansi kwezimo zamandla aphansi, kodwa lapho amandla ekhuliswa, ngokuzumayo zibonakala noma zingalawuleki, njengokwanda kwe-spectral, ukungazinzi kwamandla, ukuphazamiseka kwesignali, kanye nokwehla kokusebenza kahle kwesistimu. Lezi zenzakalo zivame ukuhlotshaniswa negama eliyisihluthulelo: imiphumela engeyona eye-linear. Ngakho-ke umbuzo uwukuthi: kungani uma isingene esimweni samandla aphezulu, izinhlelo ze-fiber optic zithambekele kakhulu ezinkingeni ezingeyona eye-linear?
1, Izizathu ezibalulekile zemiphumela engeyona eqondile
Izinto ze-fiber optic (i-quartz) ngokwazo zinezici ezingezona eze-linear, ezibonakala kakhulu njenge-refractive index eshintsha ngamandla okukhanya (umphumela we-Kerr). Ngamandla aphansi, lo mphumela uba buthakathaka kakhulu futhi awubalulekile; Kodwa lapho amandla ekhuliswa, amandla okukhanya ayanda futhi umphumela ongezona eze-linear ukhuliswa kakhulu.
2, Izici ezibalulekile zokukhulisa imiphumela engeyona eqondile ngaphansi kwamandla aphezulu
Ukukhanya okuphezulu kakhulu: Indawo yensimu yemodi yemicu ye-optical incane kakhulu (ngokuvamile amashumi e-μ m²), futhi noma amandla aphelele engekho phezulu, ukukhanya sekuvele kuphezulu kakhulu. Imiphumela engeyona eqondile ihlobene ngqo nokukhanya okukhulu (kunokuba amandla aphelele), futhi njengoba amandla enyuka, ukukhanya kuyanda ngokushesha, futhi imiphumela engeyona eqondile iyanda ngokufanele.
Ubude bokusebenza obude: Ukukhanya kuma-optical fibers kungasakazeka amamitha amaningana kuya kumakhilomitha amaningana, futhi imiphumela engeyona eye-linear iyaqhubeka nokuqongelela kuyo yonke inqubo yokusakazeka, ekugcineni ibe nomthelela omkhulu. Ubukhulu bemiphumela engeyona eye-linear bungaqondwa njengokulingana nobukhulu bokukhanya obuphindaphindwe ubude bokusakazeka.
3, Imiphumela Ejwayelekile Engeyona Eqondile kanye Nokubonakaliswa Kwayo
Ukuguquguquka kwesigaba sokuzilawula (i-SPM): Izinguquko ekujuleni kokukhanya zibangela izinguquko ku-refractive index, okuholela ekushintsheni kwesigaba kanye nokwanda kwe-spectral, okubonakaliswa njengokwanda kwe-pulse kanye nokwanda kwe-spectral.
Ukusabalala kwe-Brillouin okukhuthaziwe (SBS): Kulula ukucasuka ngaphansi kobubanzi obuncane kanye nezimo zamandla aphezulu, ngomkhawulo ocacile ongadala ukusabalala emuva, unciphise amandla adlulisiwe, futhi ubangele ukwehla okungazelelwe noma ukungazinzi komkhiqizo wesistimu.
I-Stimulated Raman Scattering (SRS): Ivela ngamandla aphezulu noma ngemicu emide, ebonakala ngokudluliselwa kwamandla kuya kuma-wavelength amade kanye nezinguquko esakhiweni se-spectral.
4, Isizathu sokuthi inkinga ingabonakali ngaphansi kwamandla aphansi
Imiphumela engeyona eqondile inezici zomkhawulo kanye nezici zokukhula okungeyona eqondile. Umphumela ubuthakathaka kakhulu futhi kunzima ukuwuqoqa ngamandla aphansi; Uma amandla esedlule umkhawulo, umphumela uzokhula ngokushesha futhi uvele ngokuzumayo, okuchaza isimo "sezinkinga ezivela ngokuzumayo ngokushesha nje lapho amandla ekhuphuka" kobunjiniyela.
5, Ukuphikisana okuyinhloko namasu okubhekana nesimo sobunjiniyela
Izinhlelo zamandla aphezulu zidinga ukucindezela imiphumela engeyona eqondile ngenkathi zikhulisa amandla. Izindlela zobunjiniyela ezivamile zifaka:
Ukwandisa indawo yensimu yemodi ukuze kuncishiswe ubukhali bokukhanya
Nciphisa ubude besenzo obusebenzayo
Khulisa ububanzi bomugqa ukuze ucindezele i-SBS
Lungiselela ukwakheka kwesistimu
Umqondo oyisisekelo ukunciphisa ubukhali bokukhanya ngevolumu yeyunithi ngayinye noma ukunciphisa imiphumela eqongelelekayo engeyona eqondile.
Isiphetho
Amandla aphezului-fiber opticizinhlelo zithambekele kakhulu emiphumeleni engeyona eye-linear, futhi isizathu esiyisisekelo ukuthi ukuqina kokukhanya okuphezulu kanye nebanga elide lokusebenza ku-fiber kukhulisa izici ezingeyona eye-linear zezinto. Imiphumela engeyona eye-linear iqoqana ngamandla nobude, futhi ivele ngokushesha ngemva kokudlula umkhawulo. Ngakho-ke, ukulawula ukuqina kokukhanya kanye nobude obusebenzayo ekwakhiweni kwesistimu kuyisihluthulelo sokucindezela ukungalingani.
Isikhathi sokuthunyelwe: Juni-02-2026