Mndandanda wa Optical amplifier: Mau oyamba a Semiconductor Optical Amplifier

Optical amplifiermndandanda: Mau oyamba a Semiconductor Optical Amplifier

Semiconductor Optical amplifier(SOA) ndi amplifier opangidwa ndi semiconductor gain media. Zili ngati chubu chophatikizika ndi semiconductor laser chubu, ndi galasi lomaliza m'malo ndi filimu yotsutsa; Ma waveguide opendekeka atha kugwiritsidwa ntchito kuti muchepetse chiwonetsero chakumapeto. Kuwala kwa siginecha nthawi zambiri kumaperekedwa kudzera mu semiconductor single-mode waveguide, yokhala ndi gawo lozungulira la 1-2 μ m ndi kutalika pafupifupi 0.5-2mm. Mawonekedwe a waveguide amadutsana kwambiri ndi dera logwira ntchito (kukulitsa), lomwe limapopedwa ndi pano. Kubaya jekeseni kumapanga kachulukidwe kake ka chonyamulira mu bandi ya conduction, kulola kusintha kwa mawonekedwe kuchokera pa bandi yoyendetsa kupita ku bandi ya valence. Kupindula kwakukulu kumachitika pa mphamvu za photon pang'ono pamwamba pa mphamvu ya bandgap.

Mfundo yogwira ntchito ya semiconductor Optical amplifier
Semiconductor Optical amplifiers (SOA) kukulitsa zizindikiro za kuwala kwa zochitika pogwiritsa ntchito mpweya wolimbikitsa, ndipo makina ake ndi ofanana ndi a semiconductor lasers.SOA Optical amplifierndi laser ya semiconductor popanda mayankho, ndipo maziko ake ndikupeza phindu la kuwala potembenuza kuchuluka kwa tinthu tating'onoting'ono pomwe semiconductor optical amplifier imapangidwa ndi magetsi kapena kupopera.
Mitundu yaSOA Semiconductor Optical amplifier
Malingana ndi udindo wa SOA mu machitidwe a makasitomala, akhoza kugawidwa m'magulu anayi: serial, booster, switching SOA, ndi preamplifier.
1. Kuyika kwachindunji: kupindula kwakukulu, Psat yapakati; NF yotsika ndi PDG yapansi, yomwe nthawi zambiri imagwirizanitsidwa ndi polarization palokha SOA ·
2. Enhancer: Psat yapamwamba, kupindula kochepa, kawirikawiri kumadalira polarization;
3. Kusintha: chiŵerengero cha kutha kwakukulu ndi nthawi yokwera / kugwa;
4. Pre amplifier: yoyenera mtunda wautali wotumizira, NF yotsika, ndi kupindula kwakukulu.
Ubwino wa SOA Semiconductor Optical amplifier
Kupindula kwa kuwala koperekedwa ndi SOA mkati mwa bandwidth kumakhala kosiyana ndi kutalika kwa chizindikiro cha optical chochitika.
Imani jekeseni wamakono ngati siginecha ya mpope yokwezeka, m'malo mopopa ndi kuwala.
Chifukwa cha kukula kwake kophatikizana, SOA imatha kuphatikizidwa ndi zida zingapo zamafotonic waveguide pagawo limodzi la planar.
4. Amagwiritsa ntchito ukadaulo womwewo monga ma diode lasers.
SOA imatha kugwira ntchito m'magulu olumikizirana a 1300 nm ndi 1550 nm, okhala ndi bandwidth yotakata (mpaka 100 nm).
6. Zitha kukonzedwa ndikuphatikizidwa kuti zikhale ngati zowonetseratu kumapeto kwa optical receiver.
SOA ingagwiritsidwe ntchito ngati chipata chosavuta cha logic mu WDM optical network.

Zochepa za SOA Semiconductor Optical amplifier
SOA imatha kupereka mphamvu yotulutsa yofikira makumi a ma milliwatts (mW), yomwe imakhala yokwanira kugwiritsa ntchito njira imodzi yolumikizirana ndi fiber optic. Komabe, machitidwe a WDM angafunike mpaka ma mW angapo amphamvu panjira.
2. Chifukwa cha kugwirizana kwa optical fibers kulowa mkati ndi kunja kwa SOA Integrated chips nthawi zambiri kumayambitsa kutayika kwa chizindikiro, SOA iyenera kupereka zowonjezera zowonjezera zowunikira kuti zichepetse zotsatira za kutayika kumeneku pazowonjezera / zotulutsa za dera logwira ntchito.
SOA imakhudzidwa kwambiri ndi polarization ya ma sign optical input.
4. Amapanga phokoso lambiri muzofalitsa zogwira ntchito kuposa zopangira fiber.
Ngati njira zingapo zowoneka bwino zimachulukitsidwa monga momwe zimafunikira pakugwiritsa ntchito WDM, SOA imayambitsa crosstalk yayikulu.