Gịnị bụ Optical modulator?

Gịnị bụ Optical modulator?

Optical modulatora na-ejikarị emegharị ihe nke ọkụ ọkụ, dị ka ọkụ laser. Ngwaọrụ nwere ike ijikwa njirimara nke beam, dị ka ike anya ma ọ bụ oge. A na-akpọ modulator dị ka ọdịdị nke modulated dooike modulator, usoro modulator, polarization modulator, spatial Optical modulator, wdg. Enwere ike iji ụdị modulators dị iche iche na ngwa dị iche iche, dị ka nkwukọrịta fiber optic, ngwaọrụ ngosi, Q-switched ma ọ bụ ọnọdụ ekpochi lasers, na nlele anya.

Ụdị modulator ngwa anya

E nwere ụdị modulators dị iche iche:

1. Acousto-optic modulator bụ modulator dabere na mmetụta acousto-optic. A na-eji ha na-agbanwe ma ọ bụ na-aga n'ihu na-edozi njupụta nke eriri laser, gbanwee ọkụ ọkụ, ma ọ bụ gbanwee ntụziaka nke oghere.

2. Nkeelectrooptic modulatorna-eji mmetụta eletrọ-optic na igbe afụ Kerrs. Ha nwere ike gbanwee steeti polarization, oge, ma ọ bụ ike beam, ma ọ bụ jiri ya mee mmịpụta pulse dịka ekwuru na ngalaba na ultrashort pulse amplifiers.

3. Modulator absorption eletrik bụ ike modulator eji na data transmitter na ngwa anya fiber nkwurịta okwu.

(4) A na-ejikarị modulators nnyonye anya, dị ka Mach-Zehnder modulators, na sekit agbakwunyere fotonic maka nnyefe data anya.

5. Fiber optic modulators nwere ike dabere na ụkpụrụ dị iche iche. Ọ nwere ike ịbụ ezigbo fiber optic ngwaọrụ, ma ọ bụ ọ nwere ike ịbụ akụkụ ahụ nwere eriri pigtails.

6. Liquid crystal modulator kwesịrị ekwesị maka ngwa ngwa ihe ngosi ngosi ma ọ bụ pulse shaper. Enwere ike iji ha dị ka ndị na-eme mgbanwe ọkụ gbasara ohere, nke pụtara na nnyefe na-adịgasị iche na oghere, nke enwere ike iji na ngwaọrụ ngosi.

7. Diski modulation nwere ike gbanwee ike nke ọkụ oge ụfọdụ, nke a na-eji na ụfọdụ ihe nlele anya (dị ka iji mgbachi mkpọchi).

8. Micromechanical modulators (micromechanical system, MEMS) dị ka valvụ ọkụ na-adabere na silicon na ihe ngosi enyo abụọ dị mkpa karịsịa na ngosipụta nleba anya.

9. Nnukwu modulators anya, dị ka electro-optical modulators, nwere ike iji nnukwu ebe ọkụ ma nwee ike tinye ya n'ọnọdụ dị elu. Fiber tinyere modulators, na-emekarị waveguide modulators nwere eriri pigtails, dị mfe itinye n'ime eriri optic usoro.

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Ngwa nke Optical modulator

Ndị modulators anya nwere ọtụtụ ngwa n'ọtụtụ mpaghara. Ndị a bụ mpaghara ngwa ngwa nke Optical modulators na ngwa ha akọwapụtara:

1. Nkwurịta okwu anya: N'ime usoro nkwurịta okwu anya, a na-eji ndị modulators eme ihe iji gbanwee njupụta, ugboro na oge nke mgbaàmà anya iji nyefee ozi. A na-ejikarị ya eme ihe na isi nzọụkwụ dị ka ntugharị fotoelectrical, mgbama ngwa anya na demodulation. Electro-optic modulators dị mkpa karịsịa na usoro nkwurịta okwu ngwa anya dị elu, nke a na-eji gbanwee akara eletrọnịkị ka ọ bụrụ akara ngosi anya ma ghọta ntinye data na nnyefe. Site n'ịgbanwe ike ma ọ bụ akụkụ nke mgbama ngwa anya, ọrụ nke ngbanwe ọkụ, njikwa ọnụego mgbanwe na mgbanwe mgbama nwere ike mezuo.

2. Nhụta anya: Modulator optical nwere ike ịghọta nha na nlekota nke gburugburu ebe obibi site n'ịgbanwe àgwà nke mgbaàmà anya. Dịka ọmụmaatụ, site n'ịgbanwe usoro ma ọ bụ njupụta nke ìhè, fiber optic gyroscopes, fiber optic pressure sensọ, wdg nwere ike mezuo.

3. Nchekwa ngwa anya na nhazi: A na-eji ndị modulators eme ihe maka nchekwa anya na ngwa nhazi ngwa ngwa. N'ebe nchekwa anya, enwere ike iji ihe modulators anya dee ma gụọ ozi n'ime yana pụọ ​​na mgbasa ozi anya. Na nhazi ngwa anya, enwere ike iji modulator ngwa anya maka imepụta, nzacha, mgbanwe na demodulation nke akara ngosi anya.

4. Ihe nlere anya anya: enwere ike iji ndị modulators mee ihe iji gbanwee oge na njupụta nke ọkụ ọkụ, si otú ahụ gbanwee àgwà nke onyinyo ahụ na ihe ngosi anya. Dịka ọmụmaatụ, onye na-ahụ maka ọkụ ọkụ nwere ike mejuputa usoro nhazi akụkụ abụọ iji gbanwee ogologo mgbanaka na nleba anya omimi nke ntu

5. Njikwa mkpọtụ anya: Onye na-ahụ maka anya nwere ike ịchịkwa ike na ugboro nke ìhè, si otú ahụ belata ma ọ bụ na-egbochi mkpọtụ anya na usoro anya. Enwere ike iji ya na amplifiers ngwa anya, lasers na sistemụ nnyefe fiber optic iji melite ogo mgbaàmà na mkpọtụ na arụmọrụ nke sistemụ ahụ.

6. Ngwa ndị ọzọ: electro-optical modulators na-ejikwa nyocha nyocha, usoro radar, nchọpụta ahụike na mpaghara ndị ọzọ. Na spectroscopy, enwere ike iji igwe eletrọ-optical modulator dị ka akụkụ nke nyocha ihe nleba anya maka nyocha na nha anya. N'ime sistemụ radar, a na-eji modulator eletrọnịkị maka mgbama mgbama na mgbagha. Na nyocha ahụike, a na-eji ndị na-ahụ maka eletrọ-optic eme ihe na onyonyo anya na ọgwụgwọ.