Njira zoyesera magwiridwe antchito a electro-optic modulator

Njira zoyesera kuti zigwire bwino ntchitomodulator yamagetsi

1. Njira zoyesera mphamvu ya theka la mafunde amodulator ya mphamvu ya electro-optic

Potengera mphamvu ya theka la mafunde pa RF terminal mwachitsanzo, gwero la chizindikiro, chipangizo chomwe chikuyesedwa ndi oscilloscope zimalumikizidwa kudzera mu chipangizo cha mbali zitatu. Mukayesa mphamvu ya theka la mafunde pa terminal ya Bias, ilumikizeni motsatira mzere wokhala ndi madontho.

b. Yatsani gwero la kuwala ndi gwero la chizindikiro, ndipo ikani chizindikiro cha mafunde a sawtooth (mafupipafupi oyesera nthawi zambiri ndi 1KHz) pa chipangizo chomwe chikuyesedwa. Chizindikiro cha mafunde a sawtooth Vpp chiyenera kukhala choposa kawiri mphamvu ya theka la mafunde.

c. Yatsani oscilloscope;

d. Chizindikiro chotulutsa cha chowunikira ndi chizindikiro cha cosine. Lembani ma voltage a sawtooth wave voltage V1 ndi V2 ofanana ndi nsonga ndi mitsinje yoyandikana ya chizindikiro ichi. e. Werengani voltage ya theka la mafunde motsatira Fomula (3).

2. Njira zoyesera mphamvu ya theka la mafundemodulator ya gawo la electro-optic

Pambuyo polumikiza dongosolo loyesera, kusiyana kwa njira yowunikira pakati pa manja awiri omwe amapanga kapangidwe ka interferometer yowunikira kuyenera kukhala mkati mwa kutalika kwa mgwirizano. Gwero la chizindikiro ndi RF terminal ya chipangizo chomwe chikuyesedwa komanso njira 1 ya oscilloscope zimalumikizidwa kudzera mu chipangizo cha njira zitatu. Pambuyo polumikiza dongosolo loyesera, kusiyana kwa njira yowunikira pakati pa manja awiri omwe amapanga kapangidwe ka interferometer yowunikira kuyenera kukhala mkati mwa kutalika kwa mgwirizano. Gwero la chizindikiro ndi RF terminal ya chipangizo chomwe chikuyesedwa komanso njira 1 ya oscilloscope zimalumikizidwa kudzera mu chipangizo cha njira zitatu, ndipo doko lolowera la oscilloscope limasinthidwa kukhala mkhalidwe wapamwamba wa impedance.

b. Yatsani gwero la laser ndi chizindikiro, ndikuyika chizindikiro cha mafunde a sawtooth cha ma frequency enaake (mtengo wamba wa 50KHz) pa chipangizo chomwe chikuyesedwa. Chizindikiro chotulutsa cha chowunikira ndi chizindikiro cha cosine. Vpp ya chizindikiro cha mafunde a sawtooth iyenera kukhala yayikulu kuposa kawiri mphamvu ya theka la mafunde, koma osapitirira kuchuluka kwa ma voltage olowera omwe afotokozedwa ndi modulator, kuti chizindikiro cha cosine chotulutsa cha chowunikira chiwonetse kuzungulira konsekonse.

c. Lembani kuchuluka kwa magetsi a sawtooth wave V1 ndi V2 komwe kukugwirizana ndi nsonga ndi mitsinje yoyandikana nayo ya chizindikiro cha cosine;

d. Werengani mphamvu ya mafunde a theka malinga ndi Fomula (3).

3. Kutayika kwa ma modulators a electro-optic

Masitepe oyesera

Mukalumikiza gwero la kuwala ndi polarizer, yatsani gwero la kuwala ndikuyesa mphamvu ya kuwala ya Pi yolowera ya chipangizo chomwe chikuyesedwa ndi choyezera mphamvu ya kuwala.

b. Lumikizani chipangizo chomwe chikuyesedwa ku makina oyesera, ndikulumikiza ma terminal otulutsa a magetsi olamulidwa ndi ma pin 1 (GND) ndi 2 (Bias) amodulator(Pa magulu ena a ma modulator, pini 1 ya modulator iyeneranso kulumikizidwa ku nyumbayo).

c. Sinthani mphamvu yotulutsa ya magetsi olamulidwa ndikuyesa kuwerenga kwakukulu kwa mita yamagetsi yowunikira ngati Pout.

d. Ngati chipangizo chomwe chikuyesedwa ndi chamagetsi, palibe chifukwa chowonjezera magetsi okhazikika. Pout imatha kuwerengedwa mwachindunji kuchokera ku choyezera magetsi.

e. Werengani kutayika kwa choyikapo motsatira Fomula (1).

Kusamalitsa

a. Kulowetsa kwa kuwala kwa electro-optic modulator sikuyenera kupitirira mtengo wowerengera pa lipoti loyesa; apo ayi,EO modulatorzidzawonongeka.

b. Kulowetsa kwa RF kwa electro-optic modulator sikuyenera kupitirira mtengo wowerengera pa pepala loyesera; apo ayi, EO modulator idzawonongeka.

c. Mukakhazikitsa interferometer, pali zofunikira zambiri pa malo ogwiritsira ntchito. Kugwedezeka kwa chilengedwe ndi kugwedezeka kwa ulusi wa kuwala kungakhudze zotsatira za mayeso.