Ultra Compact IQ modulator Bias Kaiwhakahaere Aunoa
Āhuatanga
• E toru nga biases mo te hōputu whakarereke iQ modelators motuhake:
• QPSK, Qam, ofdm, ssb i whakaūngia
• Mono me te takaro:
Kaore he mahere a-ringa e hiahiatia ana i nga mea katoa aunoa
• I, Q Arms: Ko te mana ki runga i te tihi me te Null e tino heke ana i te ōwehenga nui: 50db Max1
• p Arm: Whakahaere i runga i te Q + me te q- ka whakaatu i te tika: ± 2◦
• He iti te kōtaha: 40mm (W) × 28m (D) × 8mm (H)
• Te pumau: tino maamaa te whakatinana i te mahi ki te whakamahi:
• mahi ā-ringa me te mahi jumper iti noa i te UAR2
• e rua nga ahuatanga hei whakarato i nga viana via: A.Automatic bias mana whakahaere b.tur descation
Puka tono
• linbo3 me etahi atu iqmodlators
• QPSK, Qam, ofdm, SSB me etahi atu
• Te tuku i te tuku
Mahinga
Whakaata 1
Whakaahua 2. QPSK Constellation (me te kaiwhakahaere
Whakaahua 3. Te tauira QPSK-kanohi
Whakaahua 5. 16-Qam Tauira Tauira
Whakaahua 4. Scretrum QPSK
Whakaahua 6. 16-Qam Scretrum
Whakataetae
| Parapara | Meneti | Tūnga | Ātawhi | Aronui |
| Mahi Whakahaerenga | ||||
| Ko au, kei te whakahaerehia nga ringaNull (iti) rāneiPeak (teitei) māka | ||||
| Rawehenga ngaro | Mauri1 | 50 | dB | |
| Kei te whakahaerehia te ringa a pQ + (matau quadures) rāneiQ- ( mauī quadures) māka | ||||
| Te tika i te quad | -2 | +2 | tohurau2 | |
| Te wa pumau | 15 | 20 | 25 | s |
| Hiko | ||||
| Ngaohiko mana pai | +14.5 | +15 | +15.5 | V |
| Mana pai o naianei | 20 | 30 | mA | |
| Ngaohiko mana kino | -15.5 | -15 | -14.5 | V |
| Mana kino o naianei | 8 | 15 | mA | |
| Te putanga o te ngaohiko | -14.5 | +14.5 | V | |
| Taumata Whakaari | 1%Vπ | V | ||
| Tirohanga | ||||
| Te mana o te whakaurunga3 | -30 | -8 | DBM | |
| Te whakauru whakauru | 1100 | 1650 | nm | |
1. E pa ana a Mer ki te modulator ngaro. Ko te ōwehenga ngaro kua tutuki ko te nuinga o te paanga nui o te modulator kua tohua i te modulator datasheet.
2. Tena koa tirohia ko te mana oput Uput kaore e pa ana ki te mana o te kaima i te waahi kua tohua. E pa ana ki te mana o te whatunga ka taea e te kaiwhakaora te kaweake ki te kaiwhakahaere i te wa e rere ana te ngaohiko mai i -vπ ki te + Vπ.
Atanga Kaiwhakamahi
Whakaahua5. Huihuinga
| Rōpū | Mahi | Whakamāramatanga |
| Tautuhi anō | Whakauruhia te jumper ka kumea mai i muri i te 1 tuarua | Tautuhi i te kaiwhakahaere |
| Kaha | Pūtake Mana mo te Kaiwhakahaere Bias | V- hono i te hiko hiko o te tuku hiko |
| V + hono i te hiko hiko pai o te tuku mana | ||
| Ko te tauranga waenganui e hono ana ki te hiko whenua | ||
| Pōāpara1 | Plri: whakauruhia, kukume ranei i te jumper | No Jumper: Aratau Null; Ki te jumper: aratau tihi |
| Plrq: whakauruhia, kukume ranei i te jumper | No Jumper: Aratau Null; Ki te jumper: aratau tihi | |
| PLRP: Whakauruhia, ka kumea ranei te jumper | No Jumper: Q + Aratau; Ki te jumper: Q- Aratau | |
| Ārahi | Kei runga tonu | Te mahi i raro i te ahua pumau |
| I runga i-atu ranei i runga i te 0.2s | Te tukatuka i nga raraunga me te rapu i te waahi whakahaere | |
| I runga i-atu ranei i runga i nga 1s katoa | He ngoikore rawa te mana whakauru | |
| I runga i-atu ranei i runga i ia 3s | He kaha rawa te kaha o te mana whakauru | |
| PD2 | Tūhono ki te PhotodioDe | Ko te tauranga PD e hono ana i te kaata o te PhotodioDe |
| Ko te tauranga Gnd e hono ana i te rohe o te PhotodioDe | ||
| Tuhinga o mua | I roto i, IP: He ngaohiko mo te ringa | IP: He taha pai; I roto i: te taha kino, te whenua ranei |
| QN, QP: He ngaohiko te aukati mo te Q Arch | QP: te taha pai; Qn: taha kino, whenua ranei | |
| Pn, PP: Whakakorekore mo te Pou | PP: He taha pai; PN: taha kino, whenua ranei | |
| Kiriakau | Whakahaere Whakahaerehia ma te UArt | 3.3: 3.3V ngaohiko tohutoro |
| Gnd: Papa | ||
| Rx: riro te kaiwhakahaere | ||
| TX: Whakawhiti i te Kaitoha |
1 Ko te polar e whakawhirinaki ana ki te tohu RF. Mena kaore he tohu RF i roto i te punaha, me whai hua te polar. I te wa e nui ake ana te tohu RF i tetahi taumata, ka huri te polar mai i te pai ki te kino. I tenei wa, ka huri a Null Point me te Point Point me tetahi ki tetahi.Q
tika me te kore e whakarereke i nga tohu whakahaere.
2Kotahi noa iho te whiringa ka tohua i waenga i te whakaahua kaiwhakahaere, ma te whakamahi i te kaiwhakaari modulator ranei. E taunaki ana kia whakamahia te whakaahua kaiwhakahaere mo nga whakamatautau taiwhanga mo nga take e rua. Tuatahi, kua whakatauhia e te Kaimanaaki te kounga o te Kaituku. Tuarua, he ngawari ake te whakatika i te kaha o te whakaheke i te kaha o te kaiwhakamahara o te modulator.
Ko Rofea Optoelectronics te raina hua o nga kaiwhakaora-arotau, nga kaiwhakaari kaha, nga whakaahua a laser, te miihini optical. laser, te laser laser, te kaimau optical, te taraiwa laser diode, ka whakanuia te muka. Ka whakaratohia ano hoki e matou etahi atu modulate motuhake mo te whakarite, penei i te 1 * 4 Whakapaipai i nga kaiwhakatakoto tohu, me te miihini nui o te ultra-teitei, me te whare wananga.
Ko te tumanako ka awhina a maatau hua ki a koe me o mahi rangahau.
