KR20220158509A - Variable optical wavelength discrimination transmission/reception device that identifies optical wavelength using reflection of optical wavelength linear filter - Google Patents

Abstract

The present invention relates to a variable optical wavelength discriminating transceiver for discriminating an optical wavelength using the reflection of an optical wavelength linear filter and, more specifically, to a variable optical wavelength discriminating transceiver for identifying an optical wavelength by using the reflection of an optical wavelength linear filter capable of discriminating an optical wavelength by using a difference between an optical power value transmitted through the wavelength linear filter and an optical power value reflected through the wavelength linear filter when an input variable wavelength value is not known. The variable optical wavelength discriminating transceiver for identifying a variable wavelength capable of discriminating an optical wavelength through a difference value between optical power values using the transmission and reflection of an optical wavelength linear filter when an input variable wavelength value is not known and outputting the discriminated optical wavelength value can be usefully utilized when an input optical wavelength value is not known. The variable optical wavelength discriminating transceiver comprises an optical receiving means, a wavelength change information providing means, and an optical transmitting means.

Description

Variable optical wavelength discrimination transmission/reception device that identifies optical wavelength using reflection of optical wavelength linear filter}

The present invention relates to a variable optical wavelength discriminating transceiver that identifies an optical wavelength by using reflection of an optical wavelength linear filter, and more particularly, when an input variable wavelength value is not known, an optical power value transmitted through the wavelength linear filter and a wavelength linear filter The present invention relates to a variable optical wavelength discriminating transceiver for discriminating an optical wavelength by using reflection of an optical wavelength linear filter capable of discriminating an optical wavelength using a difference in optical power values reflected from light.

Recently, data traffic is rapidly increasing due to the ultra-high-speed data service following the rapid spread of the Internet, and various network types are appearing to accommodate it.

From this point of view, recently, the use of a communication environment to meet the rapidly increasing data traffic and ultra-high speed by transmitting and receiving data in the form of an optical signal through an optical fiber is increasing, and the use of such a communication environment is expected to increase further in the future.

A conventional analysis device used an analysis method using a 50:50 divider.

That is, the optical power of the optical signal input to the input terminal is divided by a 50:50 divider.

Thereafter, the signal incident on PD1 is transmitted through the linear filter and converted into an electrical signal by photoelectric conversion by the photodiode, and the signal incident on PD2 is directly converted into an electrical signal by the photodiode at the 50:50 splitter converted into a signal.

At this time, since the PD1 analyzes the optical signal with the difference in loss for each signal transmitted through the linear filter, adjacent signal analysis is inaccurate and inaccurate.

In addition, PD2 has a problem in that reception sensitivity is lowered due to attenuation of power due to the 50:50 divider.

On the other hand, in the case of a variable wavelength transceiver, there is a problem in that an input light wavelength cannot be accurately identified, so that the corresponding light wavelength cannot be output.

Therefore, it is necessary to develop a variable light wavelength discriminating transceiver that identifies an input variable wavelength value when it is not known, and then identifies a light wavelength that can be output as the identified light wavelength value.

(Prior Document 1) Korean Registered Patent Publication No. 10-1471066 (2014.12.03)

Therefore, the present invention has been made to solve the above conventional problems,

An object of the present invention is to discriminate the light wavelength through the difference between the optical power values using the transmission and reflection of the optical wavelength linear filter when the input variable wavelength value is not known, and then output the variable wavelength value as the determined optical wavelength value. It is intended to provide a variable light wavelength discriminating transceiver that identifies.

Another object of the present invention is to configure the wavelength change information providing means 200 to identify the wavelength of light input by the light receiving means 100, change it to the same wavelength as the corresponding light wavelength, and then change the corresponding changed in the light transmission means 300 I want to output it as an optical wavelength.

In order to achieve the problem to be solved by the present invention,

According to an embodiment of the present invention, a variable light wavelength discriminating transceiver for discriminating a light wavelength using reflection of a light wavelength linear filter includes:

The first received optical signal separation filter unit 140, the first received optical signal power linear filter unit 150, the 1st PD 160 for reception and the 2nd PD 170 are configured to separate a part of the power of the input optical signal. After linear filtering, the first optical power value for the wavelength of the optical signal transmitted through the first received optical signal power linear filter unit 150 is measured and output using the first PD 160 for reception,

The second optical power value for the wavelength of the optical signal reflected from the first received optical signal power linear filter unit 150 is measured using the second PD 170 for reception and outputted;

An optical receiving unit 100 for obtaining the output first optical power value and second optical power value, calculating an optical power difference between them, and determining a wavelength of a received optical signal corresponding to the corresponding optical power difference value; and ,

Wavelength change information providing means 200 for providing wavelength change information for changing the wavelength of the received optical signal determined by the light receiving means to the optical signal transmitter of the optical transmission means;

The first transmission optical signal separation filter unit 340, the first transmission optical signal power linear filter unit 350, the first PD 360 for transmission and the second PD 370 for transmission are configured to separate a part of the power of the output optical signal. After linear filtering, the first optical power value for the wavelength of the optical signal transmitted through the first transmission optical signal power linear filter unit 350 is measured and output using the first PD 360 for transmission,

The second optical power value for the wavelength of the optical signal reflected from the first transmission optical signal power linear filter unit 350 is measured using the second PD 370 for transmission and outputted;

An optical transmitting unit 300 for obtaining the output first optical power value and the second optical power value, calculating an optical power difference value between them, and determining a wavelength of a transmission optical signal corresponding to the corresponding optical power difference value. By being configured to include, it is to solve the problem of the present invention.

A variable light wavelength discriminating transceiver for discriminating light wavelengths using reflection of a light wavelength linear filter according to the present invention includes:

Variable light wavelength that identifies the variable wavelength that can be output as the determined light wavelength value after discriminating the light wavelength through the difference between the light power values using the transmission and reflection of the light wavelength linear filter when the input variable wavelength value is not known By providing the discriminating transceiver, an effect that can be usefully utilized when the input light wavelength value is not known is provided.

In addition, the wavelength change information providing means 200 is configured to identify the wavelength of light input by the light receiving means 100, change it to the same wavelength as the corresponding light wavelength, and then output the changed light wavelength in the light transmission means 300. By doing so, the accuracy of the light wavelength output value is provided accordingly.

1 is a conceptual configuration diagram of a variable light wavelength discriminating transceiver for discriminating light wavelengths using reflection of a light wavelength linear filter according to an embodiment of the present invention.
2 is a block diagram of a light receiving means 100 of a variable light wavelength discriminating transceiver for discriminating light wavelengths using reflection of a light wavelength linear filter according to an embodiment of the present invention.
3 is a block diagram of an optical transmission unit 300 of a variable optical wavelength discriminating transceiver for discriminating an optical wavelength using reflection of an optical wavelength linear filter according to an embodiment of the present invention.
4 is a positive transmission graph of a power linear filter with respect to the wavelength of an optical signal provided to a first PD unit of a variable optical wavelength discriminating transceiver for identifying an optical wavelength using reflection of the optical wavelength linear filter according to an embodiment of the present invention; This is a negative graph of the power linear filter with respect to the wavelength of the optical signal provided to the second PD unit.
5 is data capable of discriminating wavelengths using two optical power difference values for each wavelength of a variable optical wavelength discriminating transceiver for discriminating light wavelengths using reflection of an optical wavelength linear filter according to an embodiment of the present invention. is an example
6 is a flowchart illustrating a variable light wavelength discrimination method of a variable light wavelength discriminating transceiver for discriminating a light wavelength using a reflection of a light wavelength linear filter according to an embodiment of the present invention.

A variable light wavelength discrimination transmission/reception device for identifying a variable wavelength according to an embodiment of the present invention,

The first received optical signal separation filter unit 140, the first received optical signal power linear filter unit 150, the 1st PD 160 for reception and the 2nd PD 170 are configured to separate a part of the power of the input optical signal. After linear filtering, the first optical power value for the wavelength of the optical signal transmitted through the first received optical signal power linear filter unit 150 is measured and output using the first PD 160 for reception,

The second optical power value for the wavelength of the optical signal reflected from the first received optical signal power linear filter unit 150 is measured using the second PD 170 for reception and outputted;

An optical receiving unit 100 for obtaining the output first optical power value and second optical power value, calculating an optical power difference between them, and determining a wavelength of a received optical signal corresponding to the corresponding optical power difference value; and ,

Wavelength change information providing means 200 for providing wavelength change information for changing the wavelength of the received optical signal determined by the light receiving means to the optical signal transmitter of the optical transmission means;

The first transmission optical signal separation filter unit 340, the first transmission optical signal power linear filter unit 350, the first PD 360 for transmission and the second PD 370 for transmission are configured to separate a part of the power of the output optical signal. After linear filtering, the first optical power value for the wavelength of the optical signal transmitted through the first transmission optical signal power linear filter unit 350 is measured and output using the first PD 360 for transmission,

The second optical power value for the wavelength of the optical signal reflected from the first transmission optical signal power linear filter unit 350 is measured using the second PD 370 for transmission and outputted;

An optical transmitting unit 300 for obtaining the output first optical power value and the second optical power value, calculating an optical power difference value between them, and determining a wavelength of a transmission optical signal corresponding to the corresponding optical power difference value. It is characterized in that it is configured to include.

At this time, the light wavelength input by the light receiving unit 100 is identified, changed to the same wavelength as the corresponding light wavelength, and then the light transmitting unit 300 outputs the changed light wavelength.

At this time, the wavelength change information providing means 200,

It is characterized by being configured to further include; a first optical power value, a second optical power value, an optical power difference value, and a wavelength information storage unit storing a wavelength value.

At this time, the light receiving means 100,

Obtaining the first optical power value and the second optical power value output from the first PD for reception and the second PD for reception and calculating the optical power difference between them to determine the wavelength of the received optical signal corresponding to the corresponding optical power difference It is characterized in that it is configured to include; received optical signal wavelength determination unit 180 for.

At this time, the optical transmission means 300,

To obtain the first optical power value and the second optical power value output from the first PD for transmission and the second PD for transmission, calculate the optical power difference between them, and determine the wavelength of the transmission optical signal corresponding to the corresponding optical power difference value It is characterized in that it is configured to include; a transmission optical signal wavelength discrimination unit 380.

Hereinafter, an embodiment of a variable light wavelength discriminating transceiver for discriminating light wavelengths by using the reflection of the light wavelength linear filter according to the present invention will be described in detail.

1 is a conceptual configuration diagram of a variable light wavelength discriminating transceiver for discriminating light wavelengths using reflection of a light wavelength linear filter according to an embodiment of the present invention.

As shown in FIG. 1, the variable light wavelength discriminating transceiver 1000 for identifying light wavelengths by using the reflection of the light wavelength linear filter according to the present invention includes a light receiving means 100, a wavelength change information providing means 200, a light It is characterized in that it is configured to include a transmitting means (300).

With the configuration as described above, there is an advantage of being able to determine the input variable wavelength optical signal and output it as the corresponding optical signal when it is not known.

That is, if the wavelength of the input optical signal is not known, the wavelength of the output optical signal is not the same. Therefore, the wavelength of the optical signal currently input in the variable-wavelength optical signal must be accurately checked to determine the wavelength of the optical signal that is being input to the external device. The output should be sent to so that no error occurs.

Specifically, after identifying the light wavelength input by the light receiving means 100 and changing it to the same wavelength as the corresponding light wavelength, the light transmitting means 300 outputs the changed light wavelength.

1 혹은

2 혹은

3 등과 같이 가변 파장 광신호가 입력될 경우에 어떤 광신호 파장인지를 알 수가 없는 문제점이 발생하게 되므로 파장변경정보제공수단(200)의 동작에 의해 제1광파워값 : 3, 제2광파워값 : 5, 광파워 차이값 : -2, 파장값 :

1 이라는 결과값을 출력하게 된다.for example,

1 or

2 or

When a variable wavelength optical signal such as 3 is input, a problem arises in which it is not possible to know which optical signal wavelength it is, so the first optical power value: 3 and the second optical power value by the operation of the wavelength change information providing means 200 : 5, optical power difference value: -2, wavelength value:

It will output a result of 1.

1으로 변경시키도록 광송신수단으로 변경 신호를 전송하여

1의 광파장으로 출력하도록 하는 것이다.Therefore, the same wavelength

By transmitting a change signal to the optical transmission means to change to 1,

It is to output with a light wavelength of 1.

At this time, it is characterized in that the optical power difference value = first optical power value - second optical power value.

2 is a block diagram of a light receiving means 100 of a variable light wavelength discriminating transceiver for discriminating light wavelengths using reflection of a light wavelength linear filter according to an embodiment of the present invention.

As shown in FIG. 2, the light receiving means 100,

An optical signal input unit 130 formed on one side of the receiving case unit 110 to receive an optical signal transmitted to the optical signal receiver 120 formed on the other side; and

A first received optical signal separation filter unit 140 formed in the inner space of the receiving case unit to separate a part of the power of the input optical signal and transmit it to a first received optical signal power linear filter unit formed at a lower side;

A first received optical signal power linear filter unit 150 formed below the first received optical signal separation filter unit to perform linear filtering on the wavelength of the optical signal transmitted from the first reception optical signal separation filter unit;

A reception 1PD (which is formed below the first reception optical signal power linear filter unit 150 and outputs a first optical power value for a wavelength of an optical signal transmitted through the first reception optical signal power linear filter unit (positive)) 160); and

It is formed at a position parallel to the first received optical signal power linear filter unit 150 and outputs a second optical power value for the wavelength of the optical signal reflected from the first received optical signal power linear filter unit. solvent 2PD (170); and

The first optical power value and the second optical power value output from the first PD 160 and the second PD 170 for reception are obtained, and an optical power difference between them is calculated to receive light corresponding to the corresponding optical power difference. It is configured to include; received optical signal wavelength discriminating unit 180 for discriminating the wavelength of the signal.

Specifically, the optical signal input unit 130 is formed on one side of the receiving case unit 110 and receives an optical signal transmitted to the optical signal receiver 120 formed on the other side.

At this time, the first reception optical signal separation filter unit 140 is formed in the inner space of the receiving case unit, specifically, it is formed on the right side of the optical signal input unit, and is formed on the lower side by separating a part of the power of the input optical signal. It performs a function of transmitting to the first received optical signal power linear filter unit.

Since the structure or technology for separating a part of the optical signal power described above is a technology generally used in the optical field, a detailed description thereof will be omitted, but those skilled in the art will be able to fully understand its meaning.

The first received optical signal power linear filter unit 150 is formed below the first received optical signal separation filter unit and performs linear filtering on the wavelength of the optical signal transmitted from the first reception optical signal separation filter unit. It is provided as the first PD formed on the lower side.

That is, it is linearly processed by the filter to draw a graph as shown in FIG. 4 .

At this time, the first PD 160 for reception is formed below the first reception optical signal power linear filter unit 150, and the first light for the wavelength of the optical signal transmitted through the first reception optical signal power linear filter unit is positive. It performs the function of outputting the power value.

That is, the first optical power value for the wavelength of the transmitted optical signal is output and provided to the received optical signal wavelength discrimination unit 180 .

At this time, the 2PD 170 for reception is formed at a position parallel to the first received optical signal power linear filter unit 150, and the wavelength of the optical signal negatively reflected from the first received optical signal power linear filter unit. It performs a function of outputting a second optical power value for

That is, the second optical power value for the wavelength of the reflected optical signal is output and provided to the received optical signal wavelength discriminating unit 180 .

As described above, the configuration for obtaining the first optical power value and the second optical power value using transmission and reflection has the effect of reducing manufacturing cost because there is no need to configure the conventional additional separation filter unit and power linear filter unit. It was confirmed through experiments that manufacturing convenience can be provided, and the results of further improving accuracy are less affected by environmental variables.

Therefore, the received optical signal wavelength discriminating unit 180 obtains the first optical power value and the second optical power value output from the first PD 160 and the second PD 170 for reception and calculates the optical power difference between them. It calculates and performs a function to discriminate the wavelength of the received optical signal corresponding to the corresponding optical power difference value.

Referring to FIG. 5 as an example, since the optical power difference value = first optical power value - second optical power value, the optical power difference value = 3 - 5 = -2.

1 이 되는 것이다.Therefore, the wavelength of the received optical signal corresponding to this is

it will be 1

Further, the wavelength change information providing means 200 converts the wavelength change information for changing the wavelength of the received optical signal determined by the light receiving means, specifically, the received light signal wavelength discriminating unit 180, to the optical signal of the optical transmission means. provided by the transmitter.

1 이라는 정보를 포함하고 있는 파장 변경 정보를 생성하여 이를 광송신수단의 광신호송신기로 제공하게 되는 것이다.For example, the wavelength of the received optical signal is

Wavelength change information including the information of 1 is generated and provided to the optical signal transmitter of the optical transmission means.

3 is a block diagram of an optical transmission unit 300 of a variable optical wavelength discriminating transceiver for discriminating an optical wavelength using reflection of an optical wavelength linear filter according to an embodiment of the present invention.

As shown in FIG. 3, the optical transmission means 300,

An optical signal transmitter 330 formed on one side of the transmission case unit 310 and outputting an optical signal to the optical signal output unit 320 formed on the other side;

a first transmission optical signal separation filter unit 340 formed in the inner space of the transmission case unit to separate a part of the power of the output optical signal and transmit it to the first transmission optical signal power linear filter unit 350 formed at a lower side; Wow

A first transmission optical signal power linear filter unit 350 formed below the first transmission optical signal separation filter unit to perform linear filtering on the wavelength of an optical signal transmitted from the first transmission optical signal separation filter unit;

a 1PD 360 for transmission formed below the first transmission optical signal power linear filter unit and outputting a first optical power value for a wavelength of an optical signal passing through the first transmission optical signal power linear filter unit; and

A 2PD for transmission formed at a position parallel to the second transmission optical signal power linear filter unit and outputting a second optical power value for the wavelength of an optical signal reflected from the second transmission optical signal power linear filter unit ( 370); and

The first optical power value and the second optical power value output from the first PD 360 for transmission and the second PD 270 for transmission are acquired, and an optical power difference between them is calculated to transmit light corresponding to the corresponding optical power difference. It is configured to include; a transmission optical signal wavelength discriminating unit 380 for discriminating the wavelength of the signal.

Specifically, after identifying the wavelength of the optical signal, the corresponding wavelength change information is provided to the optical signal transmitter 330. The optical signal transmitter 330 is formed on one side of the transmission case unit 310 and the other side It performs a function for outputting an optical signal to the optical signal output unit 320 formed in the.

The first transmission optical signal separation filter unit 340 is formed in the inner space of the transmission case unit to separate a part of the power of the output optical signal and transmit it to the first transmission optical signal power linear filter unit 350 formed on the lower side. will perform a function for

At this time, the first transmission optical signal power linear filter unit 350 is formed below the first transmission optical signal separation filter unit and performs linear filtering on the wavelength of the optical signal transmitted from the first transmission optical signal separation filter unit. function to do so.

That is, it is linearly processed by the filter to draw a graph as shown in FIG. 4 .

At this time, the 1PD 360 for transmission is formed below the first transmission optical signal power linear filter unit to obtain a first optical power value for a wavelength of an optical signal transmitted through the first transmission optical signal power linear filter unit. It performs the output function.

That is, the first optical power value for the wavelength of the transmitted optical signal is output and provided to the transmission optical signal wavelength discrimination unit 380 .

At this time, the 2PD 370 for transmission is formed at a position parallel to the second transmission optical signal power linear filter unit, and the second light for the wavelength of the optical signal negatively reflected from the second transmission optical signal power linear filter unit. It performs the function of outputting the power value.

That is, the second optical power value for the wavelength of the reflected optical signal is output and provided to the transmission optical signal wavelength discrimination unit 380 .

As described above, the configuration for obtaining the first optical power value and the second optical power value using transmission and reflection has the effect of reducing manufacturing cost because there is no need to configure the conventional additional separation filter unit and power linear filter unit. It was confirmed through experiments that manufacturing convenience can be provided, and the results of further improving accuracy are less affected by environmental variables.

Therefore, the transmission optical signal wavelength determining unit 380 obtains the first optical power value and the second optical power value output from the first transmission PD 360 and the second transmission PD 270, and obtains an optical power difference between them. It calculates and performs a function for discriminating the wavelength of the transmission optical signal corresponding to the corresponding optical power difference value.

Referring to FIG. 5 as an example, the same calculation formula as that of the light receiving means 100 is used. Specifically, since the optical power difference value = first optical power value - second optical power value, optical power Difference = 3 - 5 = -2.

1 이 되는 것이므로 송신 광신호가 올바르게 출력되고 있음을 판별할 수 있게 되는 것이다.Therefore, the wavelength of the corresponding transmission optical signal is

1, it is possible to determine that the transmission optical signal is correctly output.

1,

2,

3,...)을 검출하게 되는 것이다.On the other hand, the received optical signal wavelength discrimination unit 180 and the transmission optical signal wavelength discrimination unit 380 are the first optical power value, the second optical power value, the optical power difference value included in the wavelength change information providing means 200, Preset values are obtained from the wavelength information storage unit that stores the wavelength value, and based on this, the corresponding wavelength (

One,

2,

3, ...) will be detected.

Therefore, the wavelength change information providing means 200,

It is characterized by being configured to further include; a first optical power value, a second optical power value, an optical power difference value, and a wavelength information storage unit storing a wavelength value.

That is, the table shown in FIG. 5 is stored and managed in the wavelength information storage unit.

6 is a flowchart illustrating a variable light wavelength discrimination method of a variable light wavelength discriminating transceiver for discriminating a light wavelength using a reflection of a light wavelength linear filter according to an embodiment of the present invention.

As shown in FIG. 6, the variable light wavelength discriminating method of the variable light wavelength discriminating transceiver for discriminating the light wavelength using the reflection of the light wavelength linear filter includes:

A first step (S100) for the optical signal input unit 130 to receive an optical signal transmitted to the optical signal receiver 120; and

The first received optical signal separation filter unit 140 separates a part of the power of the input optical signal and transmits it to the first received optical signal power linear filter unit formed on the lower side, and the first received optical signal power linear filter unit 150 A second step (S110) for performing linear filtering on the wavelength of the optical signal; and

A 3-1 step (S115) of outputting a first optical power value for the wavelength of the optical signal transmitted through the first received optical signal power linear filter unit by the first PD 160 for reception; and

A 3-2 step (S120) of outputting a second optical power value for the wavelength of the optical signal reflected from the first received optical signal power linear filter unit by the 2nd PD 170 for reception;

The received optical signal wavelength determination unit 180 obtains the first optical power value and the second optical power value output from the first PD for reception and the second PD for reception, calculates the optical power difference between them, and corresponds to the corresponding optical power difference value. A fourth step (S130) for determining the wavelength of the received optical signal to be received; and

A fifth step (S140) for the wavelength change information providing means 200 to generate wavelength change information that is changed to the wavelength of the received optical signal determined by the light receiving means and provide it to the optical signal transmitter of the optical transmission means;

A sixth step (S150) of operating the optical signal transmitter 330 to output the wavelength of the optical signal corresponding to the wavelength change information to the optical signal output unit 320;

The first transmission optical signal separation filter unit 340 separates a part of the power of the output optical signal and transmits it to the first transmission optical signal power linear filter unit formed on the lower side, and the first transmission optical signal power linear filter unit 350 A seventh step (S160) for performing linear filtering on the wavelength of the optical signal transmitted from the first transmission optical signal separation filter unit;

An 8-1 step (S165) of outputting a first optical power value for the wavelength of the optical signal transmitted through the first transmission optical signal power linear filter unit by the first PD 360 for transmission;

An 8-2 step (S170) of outputting a second optical power value for the wavelength of the optical signal reflected from the first transmission optical signal power linear filter unit by the 2PD 370 for transmission;

The transmission optical signal wavelength determination unit 380 obtains the first optical power value and the second optical power value output from the first PD for transmission and the second PD for transmission, calculates the optical power difference between them, and corresponds to the corresponding optical power difference value. A ninth step (S180) for determining the wavelength of the transmitted optical signal to be transmitted;

1 일 경우에, 송신 광신호의 파장은

1 이 되는 것이므로 송신 광신호가 올바르게 출력되고 있음을 판별할 수 있게 되는 것이다.Therefore, since the above process is performed, for example, the wavelength of the received optical signal

1, the wavelength of the transmitted optical signal is

1, it is possible to determine that the transmission optical signal is correctly output.

That is, in the ninth step (S180), the wavelength of the transmission optical signal is determined to determine whether the wavelength of the received optical signal is the same as that of the received optical signal, and if the wavelength is the same, the transmission optical signal is output.

1 이라면, 동일한

1 으로 출력 파장을 제공하게 되는 것이다.For example, if the input wavelength is not known, the discrimination result

If 1, the same

1 will give the output wavelength.

Since it is impossible to identify the wavelength of light input to the tunable optical transceiver, the above-described configuration and method are provided to provide discrimination, and through this, accuracy of the output value of the light wavelength is provided.

Through the configuration and operation of the present invention, when the input variable wavelength value is not known, the light wavelength is determined through the difference between the optical power values using the transmission and reflection of the optical wavelength linear filter, and then the determined light wavelength value is output. By providing a transceiver for discriminating variable wavelengths of light capable of identifying variable wavelengths, an effect that can be usefully utilized when an input light wavelength value is not known is provided.

In addition, the wavelength change information providing means 200 is configured to identify the wavelength of light input by the light receiving means 100, change it to the same wavelength as the corresponding light wavelength, and then output the changed light wavelength in the light transmission means 300. By doing so, the accuracy of the light wavelength output value is provided accordingly.

Those skilled in the art to which the present invention pertains as described above will understand that it can be implemented in other specific forms without changing the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above are illustrative in all respects and should be understood as not being limiting.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

100: light receiving means
200: means for providing wavelength change information
300: optical transmission means
1000: variable light wavelength discrimination transceiver

Claims (5)

In a variable light wavelength discriminating transceiver for discriminating light wavelengths by using reflection of a light wavelength linear filter,
The first received optical signal separation filter unit 140, the first received optical signal power linear filter unit 150, the 1st PD 160 for reception and the 2nd PD 170 are configured to separate a part of the power of the input optical signal. After linear filtering, the first optical power value for the wavelength of the optical signal transmitted through the first received optical signal power linear filter unit 150 is measured and output using the first PD 160 for reception,
The second optical power value for the wavelength of the optical signal reflected from the first received optical signal power linear filter unit 150 is measured using the second PD 170 for reception and outputted;
An optical receiving unit 100 for obtaining the output first optical power value and second optical power value, calculating an optical power difference between them, and determining a wavelength of a received optical signal corresponding to the corresponding optical power difference value; and ,

Wavelength change information providing means 200 for providing wavelength change information for changing the wavelength of the received optical signal determined by the light receiving means to the optical signal transmitter of the optical transmission means;

The first transmission optical signal separation filter unit 340, the first transmission optical signal power linear filter unit 350, the first PD 360 for transmission and the second PD 370 for transmission are configured to separate a part of the power of the output optical signal. After linear filtering, the first optical power value for the wavelength of the optical signal transmitted through the first transmission optical signal power linear filter unit 350 is measured and output using the first PD 360 for transmission,
The second optical power value for the wavelength of the optical signal reflected from the first transmission optical signal power linear filter unit 350 is measured using the second PD 370 for transmission and outputted;
An optical transmitting unit 300 for obtaining the output first optical power value and the second optical power value, calculating an optical power difference value between them, and determining a wavelength of a transmission optical signal corresponding to the corresponding optical power difference value. A variable optical wavelength discriminating transceiver that identifies a variable wavelength, characterized in that it is configured to include.
According to claim 1,
After identifying the wavelength of light input by the light receiving unit 100 and changing it to the same wavelength as the corresponding light wavelength, the light transmitting unit 300 outputs the changed light wavelength by using the reflection of the light wavelength linear filter. A variable light wavelength discriminating transceiver that identifies light wavelengths.
According to claim 1,
The wavelength change information providing means 200,
A wavelength information storage unit for storing the first optical power value, the second optical power value, the optical power difference value, and the wavelength value; to identify the light wavelength using the reflection of the light wavelength linear filter, characterized in that it is configured to further include Tunable optical wavelength discriminating transceiver.
According to claim 1,
The light receiving means 100,
Obtaining the first optical power value and the second optical power value output from the first PD for reception and the second PD for reception and calculating the optical power difference between them to determine the wavelength of the received optical signal corresponding to the corresponding optical power difference A receiving light signal wavelength discriminating unit 180 for discriminating a light wavelength using reflection of a light wavelength linear filter, characterized in that it is configured to include a variable light wavelength discriminating transceiver.
According to claim 1,
The optical transmission means 300,
To obtain the first optical power value and the second optical power value output from the first PD for transmission and the second PD for transmission, calculate the optical power difference between them, and determine the wavelength of the transmission optical signal corresponding to the corresponding optical power difference value Transmitting optical signal wavelength discriminating unit 380; variable light wavelength discriminating transceiver for discriminating light wavelength using reflection of light wavelength linear filter, characterized in that it is configured to include.

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