Kodi gawo modulator ndi chiyani

Kodi agawo modulator

Phase modulator ndi optical modulator yomwe imatha kuwongolera gawo la mtengo wa laser. Mitundu yodziwika bwino ya ma module modulators ndi Pockels box-basedelectro-optic modulatorsndi ma crystal modulators amadzimadzi, omwe amathanso kutenga mwayi pakusintha kwa index ya fiber refractive index kapena kusintha kwautali, kapena kutambasula kuti asinthe kutalika kwake. Ma modulators osiyanasiyana amagwiritsidwa ntchito m'munda wa optics ophatikizika, pomwe kuwala kosinthidwa kumafalikira mu waveguide.

Zofunikira za ma modulator agawo ndi awa: Kukula kwa kusinthika kwa gawo (komwe kumatsimikizira index yosinthira ndi mphamvu yamtundu wa sideband) kumafuna drive voltage modulation bandwidth (modulation frequency range),electro-optical moduleili mu dongosolo la GHz, ndipo chipangizo chogwiritsa ntchito kutentha kapena zinthu zamadzimadzi za kristalo ndizochepa kwambiri kuposa bandwidth yogwiritsira ntchito pobowo. Imaletsa utali wozungulira wa mtengo wosinthika Miyezo yakunja ya chipangizocho Zinthuzi zimasiyana mosiyanasiyana pamitundu yosiyanasiyana ya ma modulator. Chifukwa chake, ma module amagawo osiyanasiyana amafunikira kugwiritsidwa ntchito mosiyanasiyana.

Zitsanzo zamagawo ogwiritsira ntchito ma module modulator ndi awa: A gawo modulator mu laser resonator ya single-frequency laser ingagwiritsidwe ntchito kwa wavelength tuning, kapena active mode-lock (FM mode-lock) ya laser kuti ikhazikitse mtengowo ngati ili ndi mphamvu yosinthira pang'onopang'ono, itha kugwiritsidwa ntchito mu laser frequency stabilization mechanism, mwachitsanzo, njira yolumikizira ma frequency-D imafunikira njira yolumikizira ma frequency-D. zida zoyezera spectral, zomwe nthawi zambiri zimagwiritsa ntchito ma sign a periodic drive. Miyezo ina imafuna zisa za pafupipafupi, zomwe zimapezedwa ndi mtengo wamtundu umodzi mu module moduli. Pankhaniyi, kusinthasintha kwa gawo nthawi zambiri kumafunika kukhala kolimba, kuti mutha kupeza magulu ambiri am'mbali. Mu transmitter ya data ya optical fiber communication system, modulator ya gawo imatha kugwiritsidwa ntchito kumasulira zomwe zimafalitsidwa. Mwachitsanzo, njira yosinthira magawo imagwiritsidwa ntchito.