Sadarwar fiber na gani, a matsayin daya daga cikin manyan ginshikan sadarwar zamani, tana taka muhimmiyar rawa a hanyoyin sadarwar zamani.
Ana iya sa ran haɓakar haɓakar hanyoyin sadarwar fiber na gani daga abubuwa masu zuwa.
1.Don gane karuwar iyawar bayanai da watsawa mai nisa, dole ne a yi amfani da fiber-mode fiber tare da ƙarancin asara da ƙananan watsawa.A halin yanzu, G.652 na al'ada guda-yanayin fiber na gani na al'ada ana amfani da ko'ina a cikin sadarwa cibiyar sadarwa na gani na USB Lines.Ko da yake wannan fiber yana da ƙarancin asarar 1.55 μm, yana da babban darajar watsawa na kusan 18 ps / (nm.km).An ce lokacin da aka yi amfani da fiber na al'ada guda ɗaya a tsawon 1.55 μm, aikin watsawa bai dace ba.
Idan sifili-watsawa wavelength aka matsa daga 1.31 μm zuwa 1.55 μm, shi ake kira watsawa-shifted fiber (DSF), amma a lokacin da wannan fiber da erbium-doped fiber amplifier (EDFA) aka yi amfani a cikin wani wavelength division multiplexing tsarin (WDM) , zai Saboda rashin daidaituwa na fiber, haɗuwa guda hudu yana faruwa, wanda ya hana amfani da WDM na yau da kullum, wanda ke nufin cewa watsawar fiber ba shi da kyau ga WDM.
Domin samun nasarar amfani da fasahar sadarwar fiber na gani a cikin tsarin WDM, yakamata a rage watsawar fiber, amma ba a yarda ya zama sifili ba.Saboda haka, sabon nau'i-nau'i guda ɗaya da aka tsara ana kiran fiber ba-zero dispersion fiber (NZDF), wanda ke fitowa daga 1.54 ~ Ƙimar watsawa a cikin kewayon 1.56μm za a iya kiyaye shi a 1.0 ~ 4.0ps / (nm.km), wanda ke kaucewa. wurin tarwatsewar sifili, amma yana kula da ƙaramin tarwatsawa.
An ba da rahoton misalai da yawa a bainar jama'a ta amfani da tsarin watsawa na EDFA/WDM na NZDF.
2.Photonic na'urorin da aka yi amfani da su a cikin tsarin sadarwa na fiber optic sun kuma bunkasa sosai a cikin 'yan shekarun nan.Domin biyan buƙatun tsarin WDM, an haɓaka na'urorin tushen haske masu yawa (MLS) a cikin 'yan shekarun nan.Yana shirya mahara Laser shambura a cikin wani tsararru da kuma yin matasan hadedde Tantancewar bangaren tare da tauraro coupler.
Domin samun ƙarshen tsarin sadarwar fiber na gani, mai gano hoton sa da preamplifier an haɓaka shi ne ta hanyar amsa mai sauri ko fadi.PIN photodiodes har yanzu na iya biyan buƙatun bayan haɓakawa.Don na'urorin daukar hoto na watsa shirye-shiryen da aka yi amfani da su a cikin dogon zangon 1.55μm, an ɓullo da bututun hoto na karfe semiconductor-metal photodetection (MSM) a cikin 'yan shekarun nan.Rarraba kalaman tafiya mai daukar hoto.Dangane da rahotanni, wannan MSM na iya gano 78dB na bandwidth mitar 3dB don raƙuman haske na 1.55μm.
Mai yiyuwa ne a maye gurbin na'urar farko ta FET da babban transistor motsi na lantarki (HEMT).An ba da rahoton cewa mai karɓar optoelectronic na 1.55μm ta amfani da na'urar gano MSM da HEMT pre-amplified optoelectronic integration (OEIC) yana da rukunin mitar 38GHz kuma ana sa ran isa ga 60GHz.
3. Tsarin watsa PDH-to-point a cikin tsarin sadarwar fiber na gani ya kasa daidaitawa da haɓaka hanyoyin sadarwar zamani.Don haka, haɓaka sadarwar fiber na gani zuwa hanyar sadarwar ya zama abin da babu makawa.
SDH sabon tsarin tsarin sadarwa ne na watsawa tare da ainihin halayen sadarwar.Yana da cikakkiyar hanyar sadarwa na bayanai wanda ke haɗa nau'i-nau'i, watsa layi da ayyuka masu sauyawa kuma yana da ƙarfin sarrafa cibiyar sadarwa.A halin yanzu ana amfani da shi sosai.