Ultra High Precision MZM Bias Igenzura Automatic Bias Igenzura
Ikiranga
Kugenzura ingufu za bias kuri Peak / Null / Q + / Q−
• Kubogama kubogamye kubintu bidahwitse
• Ultra igenzura neza: 50dB ntarengwa yo kuzimangana kuburyo bwa Null;
± 0.5◦ ubunyangamugayo kuri Q + na Q−
• Amplitude iri hasi:
0.1% Vπ muburyo bwa NULL nuburyo bwa PEAK
2% Vπ kuri Q + uburyo na Q−
• Ihungabana ryinshi: hamwe nogushira mubikorwa byuzuye
• Umwirondoro muto: 40mm (W) × 30mm (D) × 10mm (H)
• Biroroshye gukoresha: Gukoresha intoki hamwe na mini jumper;
Ibikorwa bya OEM byoroshye binyuze muri MCU UART2
• Uburyo bubiri butandukanye bwo gutanga bias voltage: a.Gucunga kubogama
b.Umukoresha yasobanuye kubogama
Gusaba
• LiNbO3 hamwe nabandi ba moderi ba MZ
• Digital NRZ, RZ
Gusaba porogaramu
Sisitemu yo gukwirakwiza Brillouin hamwe nibindi bikoresho bya optique
• Ikwirakwiza rya CATV
Imikorere
Igicapo 1. Kurwanya abatwara
Igishushanyo 2. Igisekuru
Igicapo 3. Modulator imbaraga nyinshi
Igicapo 4. Modulator imbaraga nkeya
Umubare ntarengwa wa DC
Muri ubu bushakashatsi, nta kimenyetso cya RF cyakoreshejwe kuri sisitemu.Ibipimo bya DC byuzuye byapimwe.
1. Igishushanyo cya 5 cyerekana imbaraga za optique zo gusohora modulator, mugihe modulator igenzurwa kuri Peak point.Irerekana 3.71dBm mu gishushanyo.
2. Igishushanyo cya 6 cyerekana imbaraga za optique zo gusohora modulator, mugihe modulator igenzurwa kuri Null point.Irerekana -46,73dBm mu gishushanyo.Mubigeragezo nyabyo, agaciro karatandukanye -47dBm;na -46.73 nigiciro gihamye.
3. Kubwibyo, igipimo gihamye cyo kuzimya DC cyapimwe ni 50.4dB.
Ibisabwa kugirango umubare munini uzimangana
1. Modulator ya sisitemu igomba kuba ifite igipimo kinini cyo kuzimira.Ibiranga sisitemu modulator ihitamo igipimo ntarengwa cyo kuzimangana gishobora kugerwaho.
2. Polarisiyasi yumucyo winjiza urumuri igomba kwitabwaho.Abayobora bumva polarisiyasi.Gukwirakwiza neza birashobora kunoza igipimo cyo kuzimangana hejuru ya 10dB.Mubigeragezo bya laboratoire, mubisanzwe umugenzuzi wa polarisiyasi arakenewe.
3. Abashinzwe kubogama neza.Mu igeragezwa ryacu rya DC kuzimangana, 50.4dB yo kuzimangana byagezweho.Mugihe datasheet ya modulator ikora urutonde 40dB gusa.Impamvu yiri terambere nuko modulator zimwe zigenda vuba cyane.Rofea R-BC-BURUNDU abayobora kubogama bavugurura bias voltage buri segonda 1 kugirango barebe igisubizo cyihuse.
Ibisobanuro
| Parameter | Min | Ubwoko | Icyiza | Igice | Ibisabwa |
| Kugenzura imikorere | |||||
| Ikigereranyo cyo kuzimangana | MER 1 | 50 | dB | ||
| CSO2 | −55 | −65 | −70 | DBc | Amplitude: 2% V.π |
| Igihe cyo guhagarara | 4 | s | Ingingo zo gukurikirana: Null & Peak | ||
| 10 | Ingingo zo gukurikirana: Q + & Q- | ||||
| Amashanyarazi | |||||
| Umuvuduko mwiza w'amashanyarazi | +14.5 | +15 | +15.5 | V | |
| Imbaraga nziza | 20 | 30 | mA | ||
| Umuvuduko mubi w'amashanyarazi | -15.5 | -15 | -14.5 | V | |
| Imbaraga zitari nziza | 2 | 4 | mA | ||
| Ibisohoka bya voltage | -9.57 | +9.85 | V | ||
| Ibisohoka bya voltage neza | 346 | µV | |||
| Inshuro | 999.95 | 1000 | 1000.05 | Hz | Verisiyo: 1kHz ibimenyetso byombi |
| Amplitude | 0.1% V.π | V | Ingingo zo gukurikirana: Null & Peak | ||
| 2% V.π | Ingingo zo gukurikirana: Q + & Q- | ||||
| Ibyiza | |||||
| Ongera imbaraga za optique3 | -30 | -5 | dBm | ||
| Iyinjiza ry'uburebure | 780 | 2000 | nm | ||
1. MER bivuga igipimo cyo kuzimya Modulator.Ikigereranyo cyo kuzimangana cyagezweho mubusanzwe igipimo cyo kuzimangana cya modulator cyerekanwe muri moderi ya datasheet.
2. CSO bivuga icyiciro cya kabiri.Gupima CSO neza, ubuziranenge bwumurongo wibimenyetso bya RF, modulator hamwe niyakira bizakorwa.Mubyongeyeho, sisitemu CSO yasomye irashobora gutandukana mugihe ikora kuri radiyo zitandukanye.
3. Nyamuneka menya ko imbaraga za optique zidahuye nimbaraga za optique kumwanya watoranijwe.Yerekeza ku mbaraga nini ya optique modulator ishobora kohereza mugenzuzi mugihe bias voltage iri hagati ya −Vπ kugeza + Vπ.
Umukoresha Imigaragarire
Igicapo5.Inteko
| Itsinda | Igikorwa | Ibisobanuro |
| Photodiode 1 | PD: Huza Cathode ya MZM Photodiode | Tanga ibitekerezo bifotora |
| GND: Huza Anode ya MZM ya fotodiode | ||
| Imbaraga | Inkomoko yimbaraga kubogama | V-: ihuza electrode mbi |
| V +: ihuza electrode nziza | ||
| Iperereza ryo hagati: rihuza ubutaka bwa electrode | ||
| Gusubiramo | Shyiramo gusimbuka hanyuma ukuremo nyuma yisegonda 1 | Ongera usubize umugenzuzi |
| Guhitamo Uburyo | Shyiramo cyangwa ukuremo umusimbuka | nta gusimbuka: Null mode;hamwe na jumper: Uburyo bwa kane |
| Guhitamo Inkingi2 | Shyiramo cyangwa ukuremo umusimbuka | nta gusimbuka: Polar nziza;hamwe na jumper: Polar mbi |
| Umuvuduko wa Bias | Ihuze na MZM bias voltage port | Hanze na GND bitanga kubogama kubogamye |
| LED | Burigihe | Gukorera muri leta ihamye |
| Kuzimya cyangwa kuzimya kuri 0.2s | Gutunganya amakuru no gushakisha ingingo igenzura | |
| Kuzimya cyangwa kuzimya kuri buri 1s | Kwinjiza optique imbaraga zirakomeye cyane | |
| Kuzimya cyangwa kuzimya kuri buri 3s | Kwinjiza optique imbaraga zirakomeye cyane | |
| UART | Koresha umugenzuzi ukoresheje UART | 3.3: 3.3V ya voltage yerekana |
| GND: Impamvu | ||
| RX: Akira umugenzuzi | ||
| TX: Kohereza umugenzuzi | ||
| Guhitamo Guhitamo | Shyiramo cyangwa ukuremo umusimbuka | nta gusimbuka: kugenzura gusimbuka; hamwe no gusimbuka: kugenzura UART |
1. Modulator zimwe za MZ zifite fotodi imbere.Igenzura rigomba guhitamo hagati yo gukoresha fotodi ya mugenzuzi cyangwa gukoresha moderi yimbere ya moderi.Birasabwa gukoresha Photodiode ya mugenzuzi kubushakashatsi bwa Laboratwari kubwimpamvu ebyiri.Ubwa mbere, umugenzuzi Photodiode yemeje ubuziranenge.Icya kabiri, biroroshye guhindura ibyinjira byinjira.Icyitonderwa: Niba ukoresheje moderi yimbere ya moderi, nyamuneka urebe neza ko ibyasohotse muri fotodiode bihwanye cyane nimbaraga zo kwinjiza.
2. Polar pin ikoreshwa muguhindura igenzura hagati ya Peak na Null muburyo bwo kugenzura Null (byagenwe na Mode Hitamo pin) cyangwa Quad +
na Quad- muburyo bwo kugenzura.Niba usimbutse polar pin idashyizwemo, igenzura rizaba Null muburyo bwa Null cyangwa Quad + muburyo bwa Quad.Amplitude ya sisitemu ya RF nayo izagira ingaruka kumwanya wo kugenzura.Iyo nta kimenyetso cya RF cyangwa ibimenyetso bya RF amplitude ari nto, umugenzuzi arashobora gufunga aho akorera kugirango akosore ingingo nkuko byatoranijwe na MS na PLR usimbuka.Iyo amplitude ya signal ya RF irenze igipimo runaka, polar ya sisitemu izahinduka, muriki gihe, umutwe wa PLR ugomba kuba muburyo bunyuranye, ni ukuvuga gusimbuka ugomba kwinjizwamo niba atari cyangwa ukururwa niba winjijwe.
Porogaramu isanzwe
Umugenzuzi biroroshye gukoresha.
Intambwe1.Huza 1% icyambu cya coupler kuri fotodiode ya mugenzuzi.
Intambwe2.Huza bias voltage isohoka ya mugenzuzi (unyuze kuri SMA cyangwa 2.54mm 2-pin umutwe) kubogama kubice bya modulator.
Intambwe3.Tanga umugenzuzi hamwe na + 15V na -15V DC.
Intambwe4.Ongera usubize umugenzuzi kandi bizatangira gukora.
ICYITONDERWA.Nyamuneka wemeze neza ko ibimenyetso bya RF bya sisitemu yose iriho mbere yo gusubiramo umugenzuzi.
Rofea Optoelectronics itanga umurongo wibicuruzwa bya moderi yubucuruzi ya Electro-optique, Moderi ya Phase, Modulator, Intoderi, Photodetector, Laser yumucyo, laseri ya DFB, Optical amplifiers, EDFA, SLD laser, QPSK modulation, Pulse laser, Light detector, Photodetector, Laser shoferi .Dutanga kandi modulatrice yihariye yo kwihitiramo, nka 1 * 4 icyiciro cya moderi moderi, ultra-low Vpi, hamwe na moderi ya ultra-high extinction ratio modulator, ikoreshwa cyane cyane muri kaminuza n'ibigo.
Twizere ko ibicuruzwa byacu bizagufasha kubushakashatsi bwawe.
