Nzira dzekuyedza dzekuita kwe electro-optic modulator

Nzira dzekuyedza dzekuita kweelectro-optic modulator

1. Half-wave voltage test matanho eelectro-optic intensity modulator

Kutora iyo hafu-wave voltage paRF terminal semuenzaniso, iyo siginecha sosi, mudziyo uri mukuedzwa uye oscilloscope zvakabatana kuburikidza netatu-nzira mudziyo. Paunenge uchiyedza iyo hafu-wave voltage paBias terminal, ibatanidze zvinoenderana netambo ine doti.

b. Batidza sosi yemwenje uye sosi yechiratidzo, uye isa chiratidzo che sawtooth wave (yakajairika bvunzo frequency ndeye 1KHz) kune mudziyo uri mukuedzwa. Iyo sawtooth wave chiratidzo Vpp inofanira kunge yakakura kudarika kaviri hafu-wave voltage.

c. Batidza oscilloscope;

d. Chiratidzo chekubuda che detector chiratidzo checosine. Rekodha iyo sawtooth wave voltage values ​​V1 neV2 inoenderana nepamusoro pepamusoro uye zvimwiro zvechiratidzo ichi. e. Verenga iyo hafu-wave voltage zvinoenderana neFormula (3).

2. Kuedza matanho ehafu-wave voltage yeelectro-optic phase modulator

Mushure mekubatanidza chirongwa chekuedza, nzira ye optical yakasiyana pakati pemaoko maviri anoumba optical interferometer structure inofanira kunge iri mukati mekureba kwekubatana. Iyo siginecha sosi uye iyo RF terminal yechishandiso chiri mukuyedzwa pamwe nechiteshi 1 cheoscilloscope chakabatana kuburikidza netatu-nzira mudziyo. Mushure mekubatanidza chirongwa chekuedza, nzira ye optical yakasiyana pakati pemaoko maviri anoumba optical interferometer structure inofanira kunge iri mukati mekureba kwekubatana. Iyo siginecha sosi uye iyo RF terminal yechishandiso chiri mukuyedzwa pamwe nechiteshi 1 cheoscilloscope chakabatana kuburikidza neatatu-nzira mudziyo, uye chiteshi chekupinza cheoscilloscope chinogadziriswa kune yakakwira-impedance state.

b. Batidza laser uye sosi yechiratidzo, uye isa chiratidzo che sawtooth wave yeimwe frequency (yakajairika kukosha 50KHz) kune mudziyo uri mukuedzwa. Chiratidzo chekubuda che detector chiratidzo checosine. Iyo Vpp yeiyo sawtooth wave siginecha inofanirwa kuve yakakura kudarika kaviri hafu-wave voltage, asi isingapfuure iyo yekuisa voltage renji inotsanangurwa nemodulator, kuitira kuti inobuda cosine chiratidzo che detector chinopa kanenge kutenderera kumwe kwakazara.

c. Rekodha iyo sawtooth wave voltage values ​​V1 uye V2 inoenderana nepamusoro pepamusoro uye madhiri eiyo cosine chiratidzo;

d. Verenga iyo hafu-wave voltage zvinoenderana neFormula (3).

3. Kuisa kurasikirwa kwe electro-optic modulators

Matanho ekuedza

Mushure mekubatanidza mwenje sosi uye polarizer, batidza mwenje sosi uye edza iyo yekuisa yemagetsi optical Pi yemudziyo uri muyedzo ine optical simba mita.

b. Batanidza mudziyo uri muyedzo kune test system, uye batanidza zvinobuda zviteshi zveyakagadziriswa magetsi ekupa kune pini 1 (GND) uye 2 (Bias) yemodulator(kune mamwe mabheti e modulator, pini 1 yemodulator inodawo kubatana kune imba).

c. Gadzirisa kubuda kwemagetsi emagetsi akagadziriswa uye edza kuverenga kwakanyanya kwemamita emagetsi emagetsi sePout.

d. Kana chishandiso chiri mukuyedzwa chiri chikamu modulator, hapana chikonzero chekuwedzera voltage inodzikamisa magetsi. Iyo Pout inogona kuverengerwa zvakananga kubva kune optical simba mita.

e. Verenga kurasikirwa kwekuisa zvinoenderana neFormula (1).

Zvekungwaririra

a. Iko kupinza kwemaziso kwe electro-optic modulator haifanire kudarika kukosha kwekuenzanisa pamushumo webvunzo; zvimwe, theEO modulatorichakuvadzwa.

b. Iyo RF yekuisa ye electro-optic modulator haifanire kudarika kukosha kwekuenzanisa papepa rebvunzo; kana zvisina kudaro, EO modulator ichakuvadzwa.

c. Paunenge uchigadzira interferometer, pane zvinodiwa zvakanyanya kune nzvimbo yekushandisa. Kuzunungusa kwezvakatipoteredza uye optical fiber swaying zvinogona kukanganisa mhinduro dzebvunzo.