CN103516432A - Continuous optical receiver - Google Patents
Continuous optical receiver Download PDFInfo
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- CN103516432A CN103516432A CN201210209993.4A CN201210209993A CN103516432A CN 103516432 A CN103516432 A CN 103516432A CN 201210209993 A CN201210209993 A CN 201210209993A CN 103516432 A CN103516432 A CN 103516432A
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Abstract
The invention discloses a continuous optical receiver which aims at having both receiving and forwarding capabilities. The continuous optical receiver comprises an optical receiving module, an amplifying module, a radio frequency output module and an optical output module. The optical receiving module receives external optical signals, and then the optical signals are respectively sent to the radio frequency output module and the optical output module after being amplified by an amplifying circuit. The radio frequency output module outputs radio frequency signals to a user terminal, and the optical output module outputs enhanced optical signals to a next node. That is to say, the continuous optical receiver has both receiving and relay functions so as to enable transmission distances to be effectively prolonged. Moreover, the continuous optical receiver can directly replace an optical receiver in a conventional optical network, allows the conventional optical network not to be rebuilt or reconstructed, and enables the coverage of a wired network to be enlarged with low costs. The continuous optical receiver is suitable for a present CATV optical network.
Description
Technical field
The present invention relates to optical fiber communication equipment, especially relate to a kind of continuity optical receiver simultaneously with reception and transfer capability.
Background technology
Develop rapidly along with computer technology, the communication technology, network technology, CATV Technology and multimedia technology, especially under the promotion of Internet, user has proposed new requirement to information exchange and Internet Transmission, and the cry that hope fusion catv network, computer network and telecommunications network are integrated is more and more higher.Utilize hfc plant structure, the scheme of setting up a kind of economical and practical broadband comprehensive information service network is also raw therefrom.
In existing Networks of Fiber Communications, when 5KM while occurring that luminous power transmission is not enough, need reconfigure the quantity that light is sent out machine with interior, the cost causing increases, and reconstructing system is by very inconvenient.
It is the patent documentation of CN201063634Y that State Intellectual Property Office of the People's Republic of China discloses Granted publication number on 05 21st, 2008, title is optical receiver, it comprises optical-electrical converter, amplifier group, electrically controlled attenuator group and automatic gain control circuit, the input of automatic gain control circuit connects optical-electrical converter, the output of automatic gain control circuit connects the control end of electrically controlled attenuators at different levels, between the output of described automatic gain control circuit and the control end of first order electrically controlled attenuator, is provided with delay circuit.The optical receiver of this scheme only has receiving ability, cannot be as the via node of optical-fiber network.
Summary of the invention
The present invention be mainly solve the existing receiver function of prior art single, cannot, as the technical problem of the via node of optical-fiber network, provide a kind of continuity optical receiver that receiver also can be used as light via node, effectively extends transmission distance simultaneously that both can be used as.
The present invention is directed to above-mentioned technical problem is mainly solved by following technical proposals: a kind of continuity optical receiver, comprises Optical Receivers, amplification module, radio frequency output module and light output module; The input of described Optical Receivers connects the light signal of outside input, and output connects the input of amplification module; The output of amplification module connects respectively the input of radio frequency output module and the input of light output module; The output output radiofrequency signal of described radio frequency output module; The output output optical signal of described smooth output module.
Optical Receivers receives outside light signal, and after amplifying by amplifying circuit, send to respectively radio frequency output module and light output module, radio frequency output module output radiofrequency signal is to user terminal, and the light output module output light signal after strengthening is to next node, it is the effect that continuity optical receiver of the present invention has played reception and relaying simultaneously, effectively extended transmission range, and can directly substitute the optical receiver in conventional optical network, without conventional optical network is transformed or rebuild, can expand at low cost the coverage of finite element network.
As preferably, described Optical Receivers comprises the first luminous power detecting unit and indicating member, and described the first luminous power detecting unit is connected with described indicating member, and described indicating member comprises the luminous power indicator light that several represent different capacities.The first power detecting unit detects the power of input optical signal, and indicates by indicating member.Indicating member comprises four luminous power indicator lights of indication-5db ,-2db, 0db and tetra-kinds of power of 2db respectively.
As preferably, described amplification module comprises pre-amplification circuit, push-pull amplifier circuit and silicon epitaxy planar ransistor; The input of described pre-amplification circuit connects the output of Optical Receivers, and output connects the input of push-pull amplifier circuit; The output of described push-pull amplifier circuit connects the input of silicon epitaxy planar ransistor; Two outputs of described silicon epitaxy planar ransistor connect respectively radio frequency output module and light output module.The signal that Optical Receivers receives after pre-amplification circuit and the amplification of push-pull amplifier circuit two-stage, is divided into two-way by silicon epitaxy planar ransistor successively, and riches all the way gives light output module, and another road sends to radio frequency output module.
As preferably, described radio frequency output module comprises the first attenuator, equalizer, the power-double amplifier and the first splitter; The input of described the first attenuator connects amplification module, and output connects the input of equalizer; The output of described equalizer connects the input of the power-double amplifier; The output of described the power-double amplifier connects the input of the first splitter; Described the first splitter has two outputs, one of them output output radiofrequency signal, and another output is the first test port.The signal that the first attenuator sends over amplification module sends to equalizer to compensate after decaying, and then by the power-double amplifier, amplifies, then by the first splitter, is divided into two-way ，Yi road and outputs to user terminal, and another road is test signal.
As preferably, described smooth output module comprises the second attenuator, PD module, the second splitter and laser circuit; The input of described the second attenuator connects amplification module, and output connects the input of PD module; The output of described PD module connects the second splitter; Described the second splitter has two outputs, one of them output connecting laser circuit, and another output is the second test port.The second attenuator receives after the signal that amplification module is sended over is decayed and sends to PD module to amplify, then by the second splitter, be divided into two-way, one tunnel is as test signal, and another road sends to laser circuit to be converted into optical signal transmission to next node.
As preferably, described laser circuit comprises power supply, laser, operational amplifier, automatic temp. controlling circuit and automatic power control circuitry, described power supply is operational amplifier, automatic temp. controlling circuit and automatic power control circuitry power supply, described operational amplifier, automatic temp. controlling circuit and automatic power control circuitry are connected with laser respectively, the input of described laser connects the second splitter, the output output optical signal of described laser.Operational amplifier, automatic temp. controlling circuit and automatic power control circuitry are controlled laser.Laser receives the signal of telecommunication of the second splitter and exports corresponding light signal.
As preferably, described laser circuit also comprises external register, and described external register is connected with described laser.External register also carries out temperature control to laser, to guarantee laser normal operation.
As preferably, described laser circuit also comprises the second luminous power detecting unit, a green indicating lamp and a red led, described the second luminous power detecting unit is connected with described operational amplifier, and described green indicating lamp is connected respectively the second luminous power detecting unit with described red led.The luminous power of the second power detecting unit detection laser, when luminous power is normal, green indicating lamp is lighted, and when luminous power is than the little 2mW of normal value or when above, red led is lighted warning.
The present invention is the light device that light-receiving, light are launched two machine unifications, be applicable to the use that continues of long-distance transmissions luminous power, for the signal of light network termination Nodes is extended again, can directly replace original optical receiver realize signal output and in, signal continues at a distance.
The present invention can be when simplifying the extension covering work of cable network, export a high-quality radiofrequency signal in road, thereby good covering relay point local user, or sneak into a road local signal, independent formation outdoor type optical sender, realizes more large-area cable network with a small amount of investment and covers, less to original transfers net system structure influence, reduce network rebuilding quantities, thereby reached the object of effective dilatation.
Substantial effect of the present invention is, 1. extended cheaply the transmission range of Digital Television, expanded the coverage of cable TV; 2. Output optical power and optical wavelength need flexible configuration according to user, can on the basis that does not change former network configuration, extend transmission range and signal cover; 3. realize and insert at low cost local radiofrequency signal.
Accompanying drawing explanation
Fig. 1 is a kind of structured flowchart of the present invention;
Fig. 2 is a kind of detailed structure view of the present invention;
In figure: 1, Optical Receivers, 2, amplification module, 3, radio frequency output module, 4, light output module, 21, pre-amplification circuit, 22, push-pull amplifier circuit, 23, silicon epitaxy planar ransistor, the 31, first attenuator, 32, equalizer, 33, the power-double amplifier, 34, the first splitter, the 41, second attenuator, 42, PD module, 43, the second splitter, 44, laser, 45, operational amplifier, 46, automatic temp. controlling circuit, 47, automatic power control circuitry, 48, power supply.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: a kind of continuity optical receiver of the present embodiment, as shown in Figure 1, comprises Optical Receivers 1, amplification module 2, radio frequency output module 3 and light output module 4.
As shown in Figure 2, amplification module 2 comprises pre-amplification circuit 21, push-pull amplifier circuit 22 and silicon epitaxy planar ransistor 23; The input of pre-amplification circuit 21 connects the output of Optical Receivers 1, and output connects the input of push-pull amplifier circuit 22; The output of push-pull amplifier circuit 22 connects the input of silicon epitaxy planar ransistor 23; Two outputs of silicon epitaxy planar ransistor 23 connect respectively radio frequency output module 3 and light output module 4.Silicon epitaxy planar ransistor 23 models are FP204.
Radio frequency output module 3 comprises the first attenuator 31, equalizer 32, the power-double amplifier 33 and the first splitter 34; The input of the first attenuator 31 connects amplification module 2, and output connects the input of equalizer 32; The output of equalizer 32 connects the input of the power-double amplifier 33; The output of the power-double amplifier 33 connects the input of the first splitter 34; The first splitter 34 has two outputs, one of them output output radiofrequency signal, and another output is the first test port.
Light output module 4 comprises the second attenuator 41, PD module 42, the second splitter 43 and laser circuit; The input of the second attenuator 41 connects amplification module 2, and output connects the input of PD module 42; The output of PD module 42 connects the second splitter 43; The second splitter 43 has two outputs, one of them output connecting laser circuit, and another output is the second test port.
Laser circuit comprises power supply 48, laser 44, operational amplifier 45, automatic temp. controlling circuit 46, automatic power control circuitry 47 and external register 49, power supply is operational amplifier 45, automatic temp. controlling circuit 46 and automatic power control circuitry 47 power supplies, operational amplifier 45, automatic temp. controlling circuit 46, automatic power control circuitry 47 and external register 49 are connected with laser 44 respectively, the input of laser 44 connects the second splitter 43, the output output optical signal of laser 44.
Laser circuit also comprises the second luminous power detecting unit, a green indicating lamp and a red led, and the second luminous power detecting unit is connected with operational amplifier 45, and green indicating lamp is connected respectively the second luminous power detecting unit with red led.The luminous power of the second power detecting unit detection laser 44, when luminous power is normal, green indicating lamp is lighted, and when luminous power is than the little 2mW of normal value or when above, red led is lighted warning.
The first splitter 34 and the second splitter 43 models are all FZ110.
When the continuity optical receiver of the present embodiment receives 1310nm and 1550nm, through opto-electronic conversion, become the signal of telecommunication, by preposition amplification+recommend amplification, now signal is distributed into two parts, a part ofly by traditional mode, through decay, balanced, PD, be amplified to user and use.And another part is also after decay, multiplication are amplified to laser and are modulated into light signal, can be according to light signal size, then continue next spot distance, expanded wired network coverage.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
When user uses this product, user should be linked into the light input end that a product has sign by the light signal of having debugged, and the light output end of modulation is received to user's Transmission Fibers, after more than connecting, plugs in and can use.The decay ATT1 that in use adjustable lay the grain is received and balanced EQ1. are in transmitting as modulate too high or too low capable of regulating ATT2, make index best.From structure, what the machine adopted is that aluminium is cast anti-electric shell, the high Switching Power Supply of reliability, and tight anti-lightning system, good shield technology, has guaranteed the equipment medium-term and long-term stable work of adverse circumstances in the wild.
Light receiving unit has adopted the original-pack high-performance PHILIPS(Philip of import) or E/O dedicated optical receiver module low noise, low distortion receive, built-in LED luminous power indication, accurately shows input optical power, built in light transmitting indicating lamp, pilot light power is normally green light, and undesired is red light.Radiofrequency signal amplify to adopt PHILIPS(Philip) or the preposition low noise block of NEC be equipped with rear class PD module and amplify output, the way of output can branch, distribute and select, every port is equipped with independent detection mouth, Optical Transmit Unit adopts imported with original packaging DFB laser (ORTEL, FUJTSE, AOI etc.), by PD output signal, provide RF drive level, guarantee carrier-to-noise ratio and the nonlinear distortion index of complete machine, guarantee that DFB laser is in optimum working performance state, accurately control Output optical power, can effectively increase the service life.Except relay function, the machine is an exportable high-quality radiofrequency signal in road also, in order to cover local user, or sneaks into a road local signal, independent formation outdoor type optical sender.
Although more used the terms such as light output module, radio frequency output module herein, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (8)
1. a continuity optical receiver, is characterized in that, comprises Optical Receivers, amplification module, radio frequency output module and light output module; The input of described Optical Receivers connects the light signal of outside input, and output connects the input of amplification module; The output of amplification module connects respectively the input of radio frequency output module and the input of light output module; The output output radiofrequency signal of described radio frequency output module; The output output optical signal of described smooth output module.
2. continuity optical receiver according to claim 1, it is characterized in that, described Optical Receivers comprises the first luminous power detecting unit and indicating member, described the first luminous power detecting unit is connected with described indicating member, and described indicating member comprises the luminous power indicator light that several represent different capacity.
3. continuity optical receiver according to claim 1, is characterized in that, described amplification module comprises pre-amplification circuit, push-pull amplifier circuit and silicon epitaxy planar ransistor; The input of described pre-amplification circuit connects the output of Optical Receivers, and output connects the input of push-pull amplifier circuit; The output of described push-pull amplifier circuit connects the input of silicon epitaxy planar ransistor; Two outputs of described silicon epitaxy planar ransistor connect respectively radio frequency output module and light output module.
4. continuity optical receiver according to claim 1, is characterized in that, described radio frequency output module comprises the first attenuator, equalizer, the power-double amplifier and the first splitter; The input of described the first attenuator connects amplification module, and output connects the input of equalizer; The output of described equalizer connects the input of the power-double amplifier; The output of described the power-double amplifier connects the input of the first splitter; Described the first splitter has two outputs, one of them output output radiofrequency signal, and another output is the first test port.
5. according to the continuity optical receiver described in claim 1 or 2 or 3 or 4, it is characterized in that, described smooth output module comprises the second attenuator, PD module, the second splitter and laser circuit; The input of described the second attenuator connects amplification module, and output connects the input of PD module; The output of described PD module connects the second splitter; Described the second splitter has two outputs, one of them output connecting laser circuit, and another output is the second test port.
6. continuity optical receiver according to claim 5, it is characterized in that, described laser circuit comprises power supply, laser, operational amplifier, automatic temp. controlling circuit and automatic power control circuitry, described power supply is operational amplifier, automatic temp. controlling circuit and automatic power control circuitry power supply, described operational amplifier, automatic temp. controlling circuit and automatic power control circuitry are connected with laser respectively, the input of described laser connects the second splitter, the output output optical signal of described laser.
7. continuity optical receiver according to claim 6, is characterized in that, described laser circuit also comprises external register, and described external register is connected with described laser.
8. continuity optical receiver according to claim 7, it is characterized in that, described laser circuit also comprises the second luminous power detecting unit, a green indicating lamp and a red led, described the second luminous power detecting unit is connected with described operational amplifier, and described green indicating lamp is connected respectively the second luminous power detecting unit with described red led.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209993.4A CN103516432A (en) | 2012-06-25 | 2012-06-25 | Continuous optical receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210209993.4A CN103516432A (en) | 2012-06-25 | 2012-06-25 | Continuous optical receiver |
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| CN103516432A true CN103516432A (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210209993.4A Pending CN103516432A (en) | 2012-06-25 | 2012-06-25 | Continuous optical receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390726A (en) * | 2018-01-02 | 2018-08-10 | 杭州万隆光电设备股份有限公司 | A kind of cable television photo-receiver |
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| US20090034980A1 (en) * | 2003-12-04 | 2009-02-05 | Kuchta Daniel M | Impedance matching circuit with simultaneous shielding of parasitic effects for transceiver modules |
| CN201515468U (en) * | 2009-09-09 | 2010-06-23 | 成都华塑电子技术开发有限公司 | Laser receiving and transmitting integral machine |
| CN102164006A (en) * | 2011-03-15 | 2011-08-24 | 成都新易盛通信技术有限公司 | Dual-channel compact small from-factor pluggable circuit |
| CN102395021A (en) * | 2011-10-26 | 2012-03-28 | 常熟市高事达光电科技有限公司 | CATV (Cable Television) amplifier capable of being upgraded to EOC (Ethernet Over Coax) local-side optical receiver circuit |
| CN202798727U (en) * | 2012-06-25 | 2013-03-13 | 杭州通兴电子有限公司 | Continuous optical receiver |
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2012
- 2012-06-25 CN CN201210209993.4A patent/CN103516432A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090034980A1 (en) * | 2003-12-04 | 2009-02-05 | Kuchta Daniel M | Impedance matching circuit with simultaneous shielding of parasitic effects for transceiver modules |
| CN201515468U (en) * | 2009-09-09 | 2010-06-23 | 成都华塑电子技术开发有限公司 | Laser receiving and transmitting integral machine |
| CN102164006A (en) * | 2011-03-15 | 2011-08-24 | 成都新易盛通信技术有限公司 | Dual-channel compact small from-factor pluggable circuit |
| CN102395021A (en) * | 2011-10-26 | 2012-03-28 | 常熟市高事达光电科技有限公司 | CATV (Cable Television) amplifier capable of being upgraded to EOC (Ethernet Over Coax) local-side optical receiver circuit |
| CN202798727U (en) * | 2012-06-25 | 2013-03-13 | 杭州通兴电子有限公司 | Continuous optical receiver |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390726A (en) * | 2018-01-02 | 2018-08-10 | 杭州万隆光电设备股份有限公司 | A kind of cable television photo-receiver |
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Application publication date: 20140115 |