Njira zoyesera zogwiritsira ntchito electro-optic modulator

Njira zoyesera zogwirira ntchito zaelectro-optic module

1. Masitepe oyesa magetsi a theka-wave kwaelectro-optic intensity modulator

Kutengera mphamvu ya theka-wave pa RF terminal mwachitsanzo, gwero lazizindikiro, chipangizo chomwe chikuyesedwa ndi oscilloscope zimalumikizidwa kudzera pa chipangizo chanjira zitatu. Mukayesa mphamvu ya theka-wave pa Bias terminal, ilumikizeni molingana ndi mzere wamadontho.

b. Yatsani gwero la kuwala ndi gwero la siginecha, ndipo ikani chizindikiro cha mafunde a sawtooth (nthawi zambiri zoyeserera ndi 1KHz) pa chipangizo chomwe chikuyesedwa. Mphamvu yamagetsi yamagetsi ya Vpp iyenera kukhala yayikulu kuposa kuwirikiza kawiri mphamvu yamagetsi.

c. Yatsani oscilloscope;

d. Chizindikiro chotuluka cha chowunikira ndi chizindikiro cha cosine. Lembani mphamvu za magetsi a sawtooth V1 ndi V2 zogwirizana ndi nsonga zoyandikana ndi nsonga za chizindikiro ichi. e. Werengetsani mphamvu ya theka-wave molingana ndi Fomula (3).

2. Masitepe oyesera a theka- wave voteji yaelectro-optic phase module

Pambuyo polumikiza dongosolo loyesera, kusiyana kwa njira ya kuwala pakati pa mikono iwiri yomwe imapanga mawonekedwe a interferometer optical iyenera kukhala mkati mwa kutalika kwa mgwirizano. Gwero lazizindikiro ndi RF terminal ya chipangizo chomwe chikuyesedwa komanso njira 1 ya oscilloscope imalumikizidwa kudzera pa chipangizo chanjira zitatu. Pambuyo polumikiza dongosolo loyesera, kusiyana kwa njira ya kuwala pakati pa mikono iwiri yomwe imapanga mawonekedwe a interferometer optical iyenera kukhala mkati mwa kutalika kwa mgwirizano. Gwero lachizindikiro ndi RF terminal ya chipangizo chomwe chikuyesedwa komanso njira 1 ya oscilloscope imalumikizidwa kudzera pa chipangizo chanjira zitatu, ndipo doko lolowera la oscilloscope limasinthidwa kukhala malo ovuta kwambiri.

b. Yatsani laser ndi gwero la siginecha, ndikuyika chizindikiro cha mafunde a ma sawtooth pafupipafupi (mtengo wake wa 50KHz) pachida chomwe chikuyesedwa. Chizindikiro chotuluka cha chowunikira ndi chizindikiro cha cosine. Vpp ya siginecha ya ma sawtooth wave ikuyenera kukhala yayikulu kuwirikiza kawiri mphamvu ya theka-wave, koma osapitilira kuchuluka kwa voliyumu yomwe yafotokozedwa ndi modulator, kotero kuti chizindikiro cha cosine cha chowunikira chimapereka chizungulire chimodzi chathunthu.

c. Lembani ma voliyumu amtundu wa sawtooth V1 ndi V2 ofanana ndi nsonga zoyandikana ndi mitsinje ya chizindikiro cha cosine;

d. Werengetsani mphamvu ya theka-wave molingana ndi Fomula (3).

3. Kuyika kutaya kwa electro-optic modulators

Masitepe oyesera

Mukalumikiza gwero la kuwala ndi polarizer, yatsani gwero la kuwala ndikuyesa mphamvu yamagetsi ya Pi ya chipangizocho poyesedwa ndi mita yamagetsi yamagetsi.

b. Lumikizani chipangizo chomwe chikuyesedwa ku makina oyesera, ndikulumikiza zotuluka zamagetsi oyendetsedwa ndi zikhomo 1 (GND) ndi 2 (Bias) zamodulator(kwa magulu ena a ma modulators, pini 1 ya modulator iyeneranso kulumikizidwa ndi nyumba).

c. Sinthani mphamvu yotulutsa mphamvu yamagetsi yoyendetsedwa ndikuyesa kuwerengera kwakukulu kwa mita yamagetsi yamagetsi ngati Pout.

d. Ngati chipangizo chomwe chikuyesedwa ndi gawo lowongolera, palibe chifukwa chowonjezera magetsi okhazikika. Pout imatha kuwerengedwa mwachindunji kuchokera ku mita yamagetsi yamagetsi.

e. Werengetsani kutayika koyika molingana ndi Fomula (1).

Kusamalitsa

a. Kuyika kwa kuwala kwa electro-optic modulator sikuyenera kupitirira mtengo wa calibration pa lipoti loyesa; apo ayi, aEO modulatorzidzawonongeka.

b. Kuyika kwa RF kwa electro-optic modulator sikuyenera kupitirira mtengo wa calibration pa pepala loyesera; mwinamwake, EO modulator idzawonongeka.

c. Mukakhazikitsa interferometer, pali zofunika kwambiri pa malo ogwiritsira ntchito. Kugwedezeka kwa chilengedwe ndi kugwedezeka kwa kuwala kwa fiber kungakhudze zotsatira za mayeso.