EDFA optik kuchaytirgich qaysi diapozonda signallarni kuchaytirish uchun mo’ljallangan?

Выберите один ответ:

a. 1200-1300 nm

b. 1300-1400 nm

c. 1530-1570 nm

d. 750-800 nm

Отзыв

Правильный ответ: 1530-1570 nm

Abror Ro‘zmatov, [22.05.2023 16:42]


Qaysi turdagi optik modulyator eng katta tezkorlikka ega?

Select one:

a. magnitooptik modulyator

b. yarim o’tkazgichli yupqa pardali optik modulyator

c. akustooptik modulyator

d. elektrooptik modulyator

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The correct answer is: yarim o’tkazgichli yupqa pardali optik modulyator

Question 2

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Optik multipleksorning vazifasi nimadan iborat?

Select one:

a. optik nurlanishni OTga samarali (yo’qotishlarsiz) kiritish

b. optik signalni kuchaytirish

c. bir necha yorug’lik signallari oqimini bitta guruxli oqimga birlashtirish, zichlashtirish

d. optik signallar oqimini bir necha oqimlarga ajratish

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The correct answer is: bir necha yorug’lik signallari oqimini bitta guruxli oqimga birlashtirish, zichlashtirish

Question 3

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Ajralmaydigan optik ulagichlarning soni quyidagi munosabat bilan aniqlanadi

Select one:

a. nq.ay.u teng (lru/lqur) - 1

b. nq.ay.u teng lqur/2

c. nq.ay.u teng (ltr/lsek

d. nq.ay.u teng lru/2

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The correct answer is: nq.ay.u teng (lru/lqur) - 1

Question 4

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Ko’chkili fotodiodning p-i-n fotodioddan asosiy farqi nimada?

Select one:

a. tezkorligining yuqoriligida

b. sezgirligining yuqoriligi; xarakteristika va parametrlarining nobarqarorligi; shovqin sathining yuqoriligida

c. sezgirligining pastligida

d. shovqin sathining yuqoriligida

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The correct answer is: sezgirligining yuqoriligi; xarakteristika va parametrlarining nobarqarorligi; shovqin sathining yuqoriligida

Question 5

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Nurlanish to’lqin uzunligi qanday miqdoriy munosabat bilan aniqlanadi?

Select one:

a. λ teng ν / c

b. λ teng ν/ α

c. λ teng c* ν

d. λ teng c / ν

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The correct answer is: λ teng c / ν

Question 6

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Standart bir modali SF tolalarda shaffoflik darchalarining qaysi birida dispersiya 0 ga teng?

Select one:

a. xech birida

b. uchinchi shaffoflik darchasida

c. birinchi shaffoflik darchasida

d. ikkinchi shaffoflik darchasida

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The correct answer is: ikkinchi shaffoflik darchasida

Question 7

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Chastotaga boqliq xolda gradientli ko'p modali tolaning modalar soni quyidagi munosabat bilan aniqlanadi?

Select one:

a. N teng ν2 / 2

b. N teng ν / 2P

c. N teng 3ν / 2

d. N teng ν2 / 4

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The correct answer is: N teng ν2 / 4

Question 8

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Kanalli signallarni guruhli oqimga birlashtirishni qaysi qurilma bajaradi?

Select one:

a. optik demultipleksor

b. optik multipleksor

c. optik demultipleksor va optik multipleksor

d. optik ulagichlar

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The correct answer is: optik multipleksor

Question 9

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O’zak va qobiq materiali sindirish ko’rsatkichlari nisbatining optimal bo’lishi nimaga olib keladi?

Select one:

a. nurning aks etishiga

b. nurning o’zakdan qobiqqa o’tib ketishiga

c. yorug’lik nurining o’zak ichiga to’liq ichki qaytishiga va nurning faqat optik tola o’zagi bo’ylab tarqalishiga

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d. nurning optik tola qobig’i bo’ylab tarqalishiga

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The correct answer is: yorug’lik nurining o’zak ichiga to’liq ichki qaytishiga va nurning faqat optik tola o’zagi bo’ylab tarqalishiga

Question 10

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Bir modali optik tolaning minimal bukish ruxsat etilgan minimal radiusi nechaga teng?

Select one:

a. 10 sm

b. 20 sm

c. 15 sm

d. bir modali tolalarga minimal bukilishlarga chegara mavjud emas

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The correct answer is: 10 sm

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To’lqin uzunligi turlicha bo,lgan bir necha optik signallarni bir vaqtda kuchaytira oladigan retranslyator turini aniqlang?

Select one:

a. optik kuchaytirgich

b. regenerator

c. bunday turi mavjud emas

Abror Ro‘zmatov, [22.05.2023 16:42]

d. optik ulagich

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The correct answer is: optik kuchaytirgich

Question 12

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EDFA optik kuchaytirgichning aktiv qismi nimadan iborat?

Select one:

a. tuliy bilan legirlangan OTdan

b. prazeodim bilan legirlangan OTdan

c. erbiy bilan legirlangan bir modali OTdan

d. ko’p modali OTdan

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The correct answer is: erbiy bilan legirlangan bir modali OTdan

Question 13

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To'lqin o'tkazuvchi tola dispersiyasi tolaning qanday parametrlariga boqliq?

Select one:

a. o'zak diametriga

b. tolaning geometrik shakliga va tolaning sindirish ko'rsatkichi profiliga

c. tolaning sindirish ko'rsatkichi profiliga

d. tolaning parametrlariga boqliq emas

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The correct answer is: tolaning geometrik shakliga va tolaning sindirish ko'rsatkichi profiliga

Question 14

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Optik signalni qabul qiluvchi modul (QqOM) ning vazifasi nimadan iborat?

Select one:

a. optik signalni elektr signaliga o’zgartirish

b. OT dan qabul qilingan optik signalni elektr signalga o’zgartirish va unga elektr qurilmalar yordamida qayta ishlov berish

c. elekr signalini optik signalga o’zgartirish

d. optik signalni qabul qilish

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The correct answer is: OT dan qabul qilingan optik signalni elektr signalga o’zgartirish va unga elektr qurilmalar yordamida qayta ishlov berish

Question 15

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Optik attenyuatorlar qanday maqsadlarda qo’llaniladi?

Select one:

a. kirish optik signallarining quvvatini kamaytirish maqsadida

b. optik signallarni kodlash maqsadida

c. kirish optik signallarining quvvatini oshirish maqsadida

d. optik signallarni dispersiyasini kamaytirish maqsadida

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The correct answer is: kirish optik signallarining quvvatini kamaytirish maqsadida

Question 16

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Optik modulyatorlarning qanday turlari mavjud?

Select one:

a. akustooptik, magnitooptik, elektrooptik, yupqa pardali yarim o’tkazgichli turlari

b. yupqa pardali yarim o’tkazgichlituri

c. akustooptik, magnitooptik turlari

d. elektrooptik, yupqa pardali yarim o’tkazgichli turlari

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The correct answer is: akustooptik, magnitooptik, elektrooptik, yupqa pardali yarim o’tkazgichli turlari

Question 17

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ТОА tiziminig tuzilish sxemasidagi qaysi qurilma uzatish tizimining boshlang’ich signallarini,optik liniya trakti bo’ylab uzatishga moslab beradi?

Select one:

a. optoelektron qabul qiluvci modul (ОQq)

b. moslashtiruvchi qurilma (МQ)

c. optoelektron uzatuvchi modul (ОUz)

d. uzatish tizimi (UT)

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The correct answer is: moslashtiruvchi qurilma (МQ)

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Question 18

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Optik kuchaytirgichlarda axborot signalining va damlash to’lqin uzunliklari orasidagi munosabat qanday bo’lishi kerak?

Select one:

a. λsign ≥ λdamlash

b. λsign < λdamlash

c. λsign teng λdamlash

d. λsign >λdamlash

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The correct answer is: λsign ≥ λdamlash

Question 19

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Uzatish tizimining energetik potentsialini ifodalovchi miqdoriy munosabatni ko’rsating?

Select one:

a. Ep teng puz – pqq, dBq

b. Ep teng c/λ dBq

c. Ep teng pqq - puz , dBq

d. Ep teng puz + pqq, dBq

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The correct answer is: Ep teng puz – pqq, dBq

Question 20

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Optik tola sindirish ko'rsatkichining diametr bo'yicha taqsimotiga ko'ra qanday guruhlarga ajraladi?

Select one:

a. poq'onali uch tishli

b. poq'onali va gradientli

c. poq'onali to'rt tishli

d. uch tishli gradientli

Oxunjon, [22.05.2023 18:35]


Optik kuchaytirgich qanday asosiy parametrlar bilan tavsiflanadi?

Select one:

a. kuchayish koeffitsienti; damlash to’lqin uzunligi

b. kuchayish koeffitsienti; kuchaytirish xarakteristikasining notekisligi;

c. kuchaytirish diapozoni; nurlanish to’lqin uzunligi

d. kuchayish koeffitsienti; to’yinish quvvati; shovqin omili; kuchaytirish diapozoni; kuchaytirish xarakteristikasining notekisligi; damlash to’lqin uzunligi

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The correct answer is: kuchayish koeffitsienti; to’yinish quvvati; shovqin omili; kuchaytirish diapozoni; kuchaytirish xarakteristikasining notekisligi; damlash to’lqin uzunligi

Question 2

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Qaysi to’lqin uzunligi eng minimal so’nish qiymatiga ega?

Select one:

a. 1,3 mkm

b. 0,85 mkm

c. 1,28 mkm

d. 1,55 mkm

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The correct answer is: 1,55 mkm

Question 3

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So’nish qaysi miqdoriy munosabatdan aniqlanadi?

Select one:

a. α teng Pqq + Puz dB/км

b. α teng Puz-Pqq teng 10 lg(Puz / Pqq) dB/км

c. α teng Pqq * Puz dB/км

d. α teng Pqq - Puz dB/км

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The correct answer is: α teng Puz-Pqq teng 10 lg(Puz / Pqq) dB/км

Question 4

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Chastotaga boqliq xolda gradientli ko'p modali tolaning modalar soni quyidagi munosabat bilan aniqlanadi?

Select one:

a. N teng 3ν / 2

b. N teng ν / 2P

c. N teng ν2 / 4

d. N teng ν2 / 2

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The correct answer is: N teng ν2 / 4

Question 5

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Xromatik dispersiya qanday tashkil etuvchilardan iborat?

Select one:

a. modalararo dispersiyadan

b. modalararo va qutblangan moda dispersiyasidan

c. material dispersiyasi va to’lqin uzatish bilan bog’liq dispersiyasidan

d. qutblangan moda dispersiyasidan

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The correct answer is: material dispersiyasi va to’lqin uzatish bilan bog’liq dispersiyasidan

Question 6

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Legirlash so’zi nimani anglatadi?

Select one:

a. aktiv soha maydonini kengaytirishni

b. aralashmalarni qo’shishni

c. signalllarni so’ndirishni

d. signallarni to’g’rilashni

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The correct answer is: aralashmalarni qo’shishni

Question 7

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ps/nm/km o’lchov birligi nimani anglatadi?

Select one:

a. optik signal amplitudasining kamayishini

b. optik signallarni regeneratsiylashni

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c. 1 nm o’lchamdagi optik impuls 1 km masofaga uzlatilganida 1 ps ga kengayishini

d. 1 mkm implusni ns ga kengayishini

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The correct answer is: 1 nm o’lchamdagi optik impuls 1 km masofaga uzlatilganida 1 ps ga kengayishini

Question 8

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Optik kushaytirgichlarda elektron cxema qo’llaniladimi?

Select one:

a. elektron cxema qo’llanilmaydi

b. elektron cxema to’liq qo’llaniladi

c. elektron cxema qo’llanilishi shart

d. elektron cxema qisman qo’llaniladi

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The correct answer is: elektron cxema qo’llanilmaydi

Question 9

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O’zak diametriga bog’liq ravishda optik tolalar (ОТ) qanday turlarga bo’linadi?

Select one:

a. bir modali va ko’p modali ОТ

b. bir modali va pog’anali ОТ

c. ko’p modali va gradientli OT

d. pog’onali va gradiyent OT

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The correct answer is: bir modali va ko’p modali ОТ

Question 10

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Fotodiodning kvant samaradorligi qaysi munosabat bilan aniqlanadi?

Select one:

a. ɳ teng C/v

b. ɳ teng Ne-k/Nfototok

c. ɳ teng c P

d. ɳ teng C/λ

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The correct answer is: ɳ teng Ne-k/Nfototok

Question 11

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Vazifasiga ko'ra optik kabelning turlari qanday?

Select one:

a. korparatsion turi

b. magistral, mintaqaviy(xududiy), mahalliy turi

c. magistral, xududiy turi

d. magistral, korparatsion turi

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The correct answer is: magistral, mintaqaviy(xududiy), mahalliy turi

Question 12

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Oxunjon, [22.05.2023 18:35]

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Optik izolyatorning vazifasi nimadan iborat?

Select one:

a. yorug’likni teskari yo’nalishda o’tkazmaslikni ta’minlash

b. yorug’likni bir yo’nalishda deyarli yo’qotihslarsiz uzatish va teskari yo’nalishga o’tkazmaslikni ta’minlash

c. optik dispersiyasini kamaytirish uchun

d. optik signallarni quvvatini oshirish

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The correct answer is: yorug’likni bir yo’nalishda deyarli yo’qotihslarsiz uzatish va teskari yo’nalishga o’tkazmaslikni ta’minlash

Question 13

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Modalararo dispersiyaning sodir bo'lish sababi nimada?

Select one:

a. toladagi mikrobukilishlardan

b. modalarning tola bo'ylab turli yo'nalishda tarqalishidan va modalarning tola bo'ylab turli vaqtda tarqalishidan

c. toladagi makrobukilish-lardan

d. modalarning tola bo'ylab turli vaqtda tarqalishidan

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The correct answer is: modalarning tola bo'ylab turli yo'nalishda tarqalishidan va modalarning tola bo'ylab turli vaqtda tarqalishidan

Question 14

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RZ kodi qanday kod?

Select one:

a. nolga qaytish kodi

b. nolga teng kod

c. manchestr kodi

d. elektrik kod

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The correct answer is: nolga qaytish kodi

Question 15

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Optik kuchaytirgichning ish printsipi qanday fundamental fizik jarayonlarga asoslangan?

Select one:

a. spontan nurlanishga

b. nokogerent nurlanishga

c. Dispersiyaga

d. kogerent majburiy nurlanish natijasida boshlang’ich fotonlarga mos yangi fotonlarning yuzaga kelishiga

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The correct answer is: kogerent majburiy nurlanish natijasida boshlang’ich fotonlarga mos yangi fotonlarning yuzaga kelishiga

Question 16

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Bir modali OT da qobiq diametri necha mkm ni tashkil etadi?

Select one:

a. 8-10 mkm

b. 125 mkm

c. 70 mkm

d. 60 mkm

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The correct answer is: 125 mkm

Question 17

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To’liq optik tarmoqlar bu -?

Select one:

a. kommutatsiya optik usulda amalga oshiriladigan tarmoq

b. tarmoqni boshqarish optik usulda amalga oshiriladigan tarmoq

c. barcha operatsiyalar va funksiyalar –kommutatsiya, tarmoqni boshqarish va bosqalar optik usulda amalga oshiriladigan tarmoq

d. barcha operatsiyalar va funksiyalar optik usulda amalga oshiriladigan tarmoq

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The correct answer is: barcha operatsiyalar va funksiyalar –kommutatsiya, tarmoqni boshqarish va bosqalar optik usulda amalga oshiriladigan tarmoq

Question 18

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Yorug’lik nurlanishining modasi tushunchasiga ta’rif bering?

Select one:

a. yorug’lik nurining to’lqin uzunligi bir hil bo’lgan tashkil etuvchisi moda deb ataladi

b. yorug’lik nurining bir hil yo’nalishga ega bo’lgan tashkil etuvchisi moda deb ataladi

c. yorug’lik nurining bir hil to’lqin uzunligiga va har hil tarqalish yo’nalishiga ega bo’lgan tashkil etuvchilari moda deb ataladi

d. yorug’lik nurining to’lqin uzunligi va tarqakish yo’nalishi bir hil bo’lgan tashkil etuvchisi moda deb ataladi

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The correct answer is: yorug’lik nurining to’lqin uzunligi va tarqakish yo’nalishi bir hil bo’lgan tashkil etuvchisi moda deb ataladi

Question 19

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Attenyuatorlarning ishlash prinsipi bo’yicha qanday turlari mavjud?

Select one:

a. so’nish qiymati bo’yicha o’zgaruvchan va so’nish qiymati qayd etilgan turlari

b. so’nish qiymati qayd etilgan turi

c. so’nish qiymati bo’yicha o’zgarmas turi

d. so’nish qiymati bo’yicha o’zgaruvchan turi

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The correct answer is: so’nish qiymati bo’yicha o’zgaruvchan va so’nish qiymati qayd etilgan turlari

Question 20

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Yorug’lik diodi quyidagi xususiyatlarga ega bo’lgan nurlanish chiqaradi?

Select one:

a. kogerent nurlanish chiqaradi

b. kogerent, monoxramatik nurlanish chiqaradi

c. monoxramatik nurlanish chiqaradi

Oxunjon, [22.05.2023 18:35]

d. nokogerent, nomonoxramatik nurlanish chiqaradi

Oxunjon, [22.05.2023 18:35]


Optik kuchaytirgich qanday asosiy parametrlar bilan tavsiflanadi?

Select one:

a. kuchayish koeffitsienti; damlash to’lqin uzunligi

b. kuchayish koeffitsienti; kuchaytirish xarakteristikasining notekisligi;

c. kuchaytirish diapozoni; nurlanish to’lqin uzunligi

d. kuchayish koeffitsienti; to’yinish quvvati; shovqin omili; kuchaytirish diapozoni; kuchaytirish xarakteristikasining notekisligi; damlash to’lqin uzunligi

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The correct answer is: kuchayish koeffitsienti; to’yinish quvvati; shovqin omili; kuchaytirish diapozoni; kuchaytirish xarakteristikasining notekisligi; damlash to’lqin uzunligi

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