BR9905750A - Optical analog transmission system with double output, process of modulating an optical signal and optical emitter with external analog modulation - Google Patents
Optical analog transmission system with double output, process of modulating an optical signal and optical emitter with external analog modulationInfo
- Publication number
- BR9905750A BR9905750A BR9905750-6A BR9905750A BR9905750A BR 9905750 A BR9905750 A BR 9905750A BR 9905750 A BR9905750 A BR 9905750A BR 9905750 A BR9905750 A BR 9905750A
- Authority
- BR
- Brazil
- Prior art keywords
- optical
- signal
- modulator
- modulating
- electro
- Prior art date
Links
Landscapes
- Optical Communication System (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
"SISTEMA DE TRANSMISSãO óPTICO ANALóGICO COM UMA SAìDA DUPLA, PROCESSO DE MODULAR UM SINAL óPTICO E EMISSOR óPTICO COM MODULAçãO ANALóGICA EXTERNA" Um sistema de modulação analógica externa é descrito, que compreende uma fonte óptica, um modulador eletro-óptico, um sinal modulador elétrico e um circuito acionador para o modulador eletro-óptico, o modulador eletro-óptico tendo duas saídas ópticas, fornecendo um primeiro e um segundo sinal óptico modulado, que são complementares entre si, cada uma das duas saídas ópticas do modulador sendo conectadas com um acoplador óptico tendo uma ramificação fornecendo uma parte do sinal óptico modulado e conectada com um receptor óptico, suscetível de gerar um primeiro e um segundo sinal de controle elétrico correspondentemente em resposta a uma primeira frequência dos primeiro e segundo sinais ópticos modulados analógicos, no qual o circuito acionador compreende um circuito gerando um sinal piloto elétrico a uma segunda frequência, igual à metade da primeira frequência, somado com o sinal modulador elétrico; um circuito de conversão suscetível de produzir um sinal continuamente convertido proporcional à diferença em amplitude entre o primeiro e o segundo sinal de controle elétrico; e um circuito de polarização suscetível de gerar um sinal de polarização em resposta ao sinal de controle."ANALOGUE OPTICAL TRANSMISSION SYSTEM WITH A DUAL OUTPUT, PROCESS OF MODULATING AN OPTICAL SIGNAL AND OPTICAL SENDER WITH EXTERNAL ANALOG MODULATION" An external analog modulation system is described, which comprises an optical source, an electro-optical modulator, an electrical modulator signal and a driver circuit for the electro-optical modulator, the electro-optical modulator having two optical outputs, providing a first and a second modulated optical signal, which are complementary to each other, each of the two optical outputs of the modulator being connected with a coupler optical having a branch providing a part of the optical signal modulated and connected with an optical receiver, susceptible to generate a first and a second electrical control signal correspondingly in response to a first frequency of the first and second analog modulated optical signals, in which the circuit The actuator comprises a circuit generating an electrical pilot signal at one s second frequency, equal to half of the first frequency, plus the electric modulator signal; a conversion circuit capable of producing a continuously converted signal proportional to the difference in amplitude between the first and the second electrical control signal; and a polarization circuit capable of generating a polarization signal in response to the control signal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98122483 | 1998-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9905750A true BR9905750A (en) | 2000-08-15 |
Family
ID=8233040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9905750-6A BR9905750A (en) | 1998-11-27 | 1999-11-26 | Optical analog transmission system with double output, process of modulating an optical signal and optical emitter with external analog modulation |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP2000162564A (en) |
| AR (1) | AR021409A1 (en) |
| AT (1) | ATE275304T1 (en) |
| AU (1) | AU6173899A (en) |
| BR (1) | BR9905750A (en) |
| CA (1) | CA2290763A1 (en) |
| DE (1) | DE69919818D1 (en) |
| NZ (1) | NZ501301A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI641881B (en) * | 2016-02-19 | 2018-11-21 | 光聯通訊有限公司 | An optical transmitter with mach-zehnder modulator and method for operating the same |
| JP7202100B2 (en) * | 2018-08-09 | 2023-01-11 | ミハル通信株式会社 | light modulator |
-
1999
- 1999-11-16 AT AT99203833T patent/ATE275304T1/en not_active IP Right Cessation
- 1999-11-16 DE DE69919818T patent/DE69919818D1/en not_active Expired - Lifetime
- 1999-11-25 CA CA 2290763 patent/CA2290763A1/en not_active Abandoned
- 1999-11-25 NZ NZ50130199A patent/NZ501301A/en unknown
- 1999-11-26 AU AU61738/99A patent/AU6173899A/en not_active Abandoned
- 1999-11-26 BR BR9905750-6A patent/BR9905750A/en not_active Application Discontinuation
- 1999-11-26 AR ARP990106031 patent/AR021409A1/en unknown
- 1999-11-29 JP JP11337512A patent/JP2000162564A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NZ501301A (en) | 2000-03-27 |
| ATE275304T1 (en) | 2004-09-15 |
| CA2290763A1 (en) | 2000-05-27 |
| AR021409A1 (en) | 2002-07-17 |
| AU6173899A (en) | 2000-06-01 |
| JP2000162564A (en) | 2000-06-16 |
| DE69919818D1 (en) | 2004-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
| B11Y | Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired | ||
| B15K | Others concerning applications: alteration of classification |
Ipc: G02F 1/03 (2006.01), G02B 6/42 (2006.0 |