JPH07264165A - Wavelength multiplex optical connection equipment - Google Patents

Abstract

PURPOSE:To decrease a communication delay time by providing an optical signal processing section multiplexing optical signals with wavelength corresponding to that of a communication destination and an optical guide path interconnecting adjacent arithmetic units via the optical signal processing section to the connection equipment. CONSTITUTION:A wavelength filter 14 extracts an optical signal whose reception wavelength is lambda1 and transmits through optical signals whose wavelength is other than the wavelength lambda1 among optical signal received from an optical guide path 5. The optical signal whose reception wavelength is lambda1 is converted into an electric signal by a photo diode 15 and the electric signal is given to an arithmetic unit 1. Thus, the signal sent from an adjacent arithmetic unit is received. The signal sent from the unit 1 to an adjacent arithmetic unit is converted into an optical signal whose reception wavelength is lambda1 by a semiconductor laser 16 and branched into two by a beam splitter 3 via an isolator 17 and given to beam splitters 11, 12. The beam splitters 11, 12 multiplex the optical signal whose reception wavelength is A. and the optical signals transmitted through the filter 14 and sends the result to left and right optical guide paths 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connection device in which a plurality of arithmetic units communicate with each other to execute predetermined arithmetic processing, and the arithmetic units are connected to each other by an optical waveguide. In particular, the present invention relates to a wavelength-multiplexed optical connection device that directly and equivalently connects distant arithmetic devices by assigning a predetermined wavelength to each arithmetic device.

[0002]

2. Description of the Related Art FIG. 9 shows a basic configuration of a conventional arithmetic system. Here, a two-dimensional structure is shown.

In the figure, a plurality of arithmetic units 1 are arranged in a matrix, and adjacent upper, lower, left and right arithmetic units are connected by electric wiring 2. In such an arithmetic system, the respective arithmetic devices 1 perform data transfer and communication with each other via the electric wiring 2 to perform predetermined arithmetic processing. The arithmetic devices that are not adjacent to each other communicate with each other via the arithmetic devices arranged between them.

Here, the arithmetic units which are not adjacent to each other are shown in FIG.
As shown by 0, the electric wiring 2 can be directly connected by providing it between the arithmetic units. For simplification, FIG. 10 shows only one set of connection relationships from the arithmetic device to the three arithmetic devices in the upper, lower, left, and right directions. By making such a connection, it is possible to directly communicate with arithmetic devices that are separated from each other within a predetermined range, and also to communicate with an arithmetic device outside the range through one arithmetic device within the range. .

[0005]

In the conventional arithmetic system, in order to communicate between the distant arithmetic devices, a large number of arithmetic devices must be passed through, and the communication delay has been a serious problem. If the configuration shown in FIG. 10 is adopted, the communication delay is alleviated according to the range in which direct connection is possible, but on the other hand, the number of required electrical wiring becomes enormous.

It is an object of the present invention to provide a wavelength division multiplexing optical connection apparatus capable of performing communication with a minimum delay equivalent to the case of direct connection even between distant arithmetic units only by connecting the adjacent arithmetic units. .

[0007]

A wavelength division multiplexing optical connection apparatus of the present invention receives an optical signal of a predetermined wavelength from an input optical signal, inputs the optical signal to an arithmetic unit, and outputs an optical signal of another wavelength and an arithmetic unit. An optical signal processing unit that multiplexes and outputs an optical signal having a wavelength corresponding to the communication destination, and an optical waveguide that couples adjacent arithmetic devices via the optical signal processing unit are provided.

The first optical signal processing unit receives the optical signal of the wavelength assigned to each arithmetic unit among the optical signals input from the optical waveguide, inputs the optical signal to each arithmetic unit, and outputs the optical signal of another wavelength. Wavelength selective receiving means for passing a signal, and an output signal of each arithmetic device is converted into an optical signal of a wavelength corresponding to the arithmetic device of the communication destination, and this optical signal and the optical signal passed through the wavelength selective receiving means are combined. And transmitting means for transmitting to the optical waveguide.

Here, the wavelength selection receiving means of each optical signal processing section respectively receives the optical signal of the first wavelength, the transmitting means transmits the optical signal of the first wavelength, and processes the communication between the adjacent arithmetic units. The configuration is Further, the wavelength selection receiving means of the predetermined optical signal processing section receives the optical signals of the first wavelength and other wavelengths, and the transmitting means transmits the optical signals of those wavelengths,
It is configured to process communication between adjacent arithmetic devices and between predetermined arithmetic devices.

The second optical signal processing section receives the optical signals of the wavelengths individually assigned to the respective arithmetic devices among the optical signals inputted from the optical waveguide, inputs them to the respective arithmetic devices, and outputs them to other wavelengths. The wavelength selection receiving means for passing the optical signal of, and the output signal of each arithmetic device is converted into the optical signal of the wavelength corresponding to the arithmetic device of the communication destination, and this optical signal and the optical signal passed through the wavelength selection receiving means The transmitting means for multiplexing and transmitting to the optical waveguide, and the optical signal input from the optical waveguide are monitored, and when the optical signal of the wavelength equal to the wavelength corresponding to the arithmetic device of the communication destination is detected, the optical signal of that wavelength is detected. And a transmission control unit that prohibits the transmission processing of.

In the wavelength division multiplexing optical connection apparatus using the second optical signal processing unit, a plurality of types of wavelengths are periodically assigned to each arithmetic unit, and the optical signal processing unit uses individual wavelengths within the periodic range. And the communication between the corresponding arithmetic devices is processed.

The transmission control means includes a beam splitter for branching a part of the optical signal input from the optical waveguide, and an optical signal having a wavelength equal to the wavelength corresponding to the arithmetic unit of the communication destination from the branched optical signal. An optical filter that transmits the light and a light receiving element that detects the transmitted optical signal are provided.

Further, the wavelength selection receiving means, the transmission means, and the transmission control means may be provided for each communication direction of the optical signal.

[0014]

In the present invention, the conventional electric wiring used for connecting the arithmetic units is replaced with an optical waveguide. Then, by assigning a predetermined wavelength to each arithmetic device and multiplexing optical signals of a plurality of wavelengths on the optical waveguide, the arithmetic devices that are distant from each other as well as the adjacent arithmetic devices are directly connected via a unique wavelength. be able to. That is, only by connecting between the adjacent arithmetic devices, even the distant arithmetic devices can be directly equivalently connected by the wavelength assigned to each arithmetic device.

Further, in the optical signal processing section corresponding to each arithmetic unit, it is discriminated whether or not the optical signal is addressed to the own apparatus by the wavelength, and if the optical signal is not addressed to the own apparatus, it is allowed to pass as it is, so that it is predetermined. The delay between distant computing devices coupled in wavelength can be minimized.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of a wavelength division multiplexing optical connection apparatus of the present invention.
The structure of an Example is shown. In this embodiment, as shown in FIG. 2, the adjacent arithmetic units communicate with each other by using the light having the wavelength λ ₁ , and the predetermined arithmetic units (here, the arithmetic units separated by four) have the wavelength λ 1.
It is configured to communicate using _two lights. Hereafter, the wavelength λ ₁ ,
λ ₂ is called the “reception wavelength” in each arithmetic unit. In addition,
Here, the simplest one-dimensional structure will be described.
The same configuration can be applied to dimensions and more. Figure 3
Is an example of a two-dimensional configuration. The reception wavelength λ
Arrangement of the _second arithmetic unit is arbitrary, and is not necessarily arranged periodically.

The wavelength division multiplexing optical connection apparatus of this embodiment is composed of an optical waveguide 5 for coupling adjacent arithmetic devices 1 and optical signal processing units 10 and 20 for connecting the arithmetic device 1 and the optical waveguide 5. . Here, it is assumed that the reception wavelength processed by the optical signal processing unit 10 is λ ₁ and the reception wavelengths processed by the optical signal processing unit 20 are λ ₁ and λ ₂ . As the optical waveguide 5, a dielectric light guide, a light beam guide, an optical fiber, or the like can be used.

The optical signal processing unit 10 shown in FIG. 1A is a beam splitter 11, 12, 13, a wavelength filter 14, a photodiode (PD) 15 as a light receiving element, a semiconductor laser (LD) 16 as a light emitting element, and an isolator. It is composed of 17.

The wavelength filter 14 extracts the optical signal of the reception wavelength λ ₁ from the optical signals input from the optical waveguide 5, and extracts the wavelength λ 1.
The optical signal of ₂ is transmitted. The optical signal of the reception wavelength λ ₁ is converted into an electric signal by the photodiode 15 and input to the arithmetic unit 1. As a result, it is possible to receive the signal transmitted from the adjacent arithmetic device. A signal transmitted by the arithmetic unit 1 to an adjacent arithmetic unit is converted into an optical signal having a wavelength λ _{1 by} the semiconductor laser 16, is branched into two by the beam splitter 13 via the isolator 17, and is input to the beam splitters 11 and 12, respectively. To be done. Beam splitter 1
In 1 and 12, the optical signal of wavelength λ _{1 and} the optical signal of wavelength λ ₂ that has passed through the wavelength filter 14 are multiplexed and sent to the optical waveguides 5 in both left and right directions.

In the isolator 17, the optical signal input from the optical waveguide 5 is split by the beam splitters 11 and 12, and the semiconductor laser 1 is passed through the beam splitter 13.
It works to prevent 6 being entered. Further, the coupling between the optical waveguide 5 and the optical signal processing unit 10 is performed via a collimator lens or the like not shown. The same applies to the optical signal processing unit shown below.

The optical signal processing section 20 includes a beam splitter 1
1, 12, 13, wavelength filters 14, 21, photodiodes (PD) 15, 22 as light receiving elements, semiconductor lasers (LD) 16, 23 as light emitting elements, isolator 1
7 and 24.

The wavelength filter 14 extracts the optical signal of the reception wavelength λ ₁ from the optical signals input from the optical waveguide 5 and outputs the wavelength λ _1.
The optical signal of ₂ is transmitted. The wavelength filter 21 is the optical waveguide 5.
The optical signal of the reception wavelength λ ₂ is extracted from the optical signal input from the optical signal and the optical signal of the wavelength λ ₁ is transmitted. Here, the optical waveguide 5
All the optical signals input from are terminated. Reception wavelength λ
The optical signal of ₁ is converted into an electric signal by the photodiode 15, and the optical signal of the reception wavelength λ ₂ is converted into an electric signal by the photodiode 22 and input to the arithmetic unit 1.
As a result, it is possible to receive signals transmitted from the adjacent arithmetic devices and the arithmetic devices that are four apart.

The signals transmitted by the arithmetic unit 1 to the adjacent arithmetic units and the arithmetic units separated by four are converted into optical signals of wavelengths λ ₁ and λ _{2 by} the semiconductor lasers 16 and 23, respectively, and passed through the isolators 17 and 24. Beam splitter 13 multiplexes and splits the beam splitter 11,
12 is input. The beam splitters 11 and 12 send out optical signals of wavelengths λ ₁ and λ _{2 to} the optical waveguide 5 in both left and right directions.

By using a plurality of wavelengths in this manner, it is possible to directly connect only the adjacent arithmetic units and directly connect the arithmetic units apart from each other, thereby minimizing the delay between them. it can. It should be noted that by increasing the number of wavelengths, it is possible to equivalently directly connect computing devices at various intervals. In that case, the corresponding optical signal processing unit is configured like the optical signal processing unit 20 according to the wavelength to be used.

The optical signal processing units 10 and 20 shown in FIG.
With respect to the configuration, the left-right directionality when viewed from the arithmetic unit 1 is not considered. Therefore, the identification information indicating the transmission source and the transmission destination is added to the optical signals distributed and transmitted to the left and right, and the receiving side discriminates and takes in the information. Here, it is also possible to provide a means for transmitting and receiving an optical signal for each direction and to make it independent for each direction. In that case, one computing device can simultaneously communicate with computing devices in both left and right directions.

The optical signal processing section 20 shown in FIG.
From the two arithmetic units, the arithmetic unit of the reception wavelength λ ₁ and the reception wavelength λ
It is configured so that it can simultaneously communicate with _two computing devices. Here, the two semiconductor lasers 16 and 23 are replaced with one wavelength tunable semiconductor laser, and the wavelengths λ ₁ and λ are time-divided.
It is also possible to adopt a configuration in which the optical signal ₂ is transmitted.

FIG. 4 shows the construction of a second embodiment of the wavelength division multiplexing optical connection apparatus of the present invention. In this embodiment, as shown in FIG. 6, the receiving wavelengths λ _{1 to} λ ₄ are periodically assigned to the respective arithmetic units,
The configuration is such that light of each wavelength is used to communicate with a corresponding arithmetic device. Note that the simplest one-dimensional configuration will be described here, but the same configuration can be applied to two-dimensional or more. FIG. 7 shows an example of a two-dimensional structure. With this configuration, it is possible to directly connect to a total of 16 arithmetic devices, which are separated from each arithmetic device vertically and horizontally by four, via respective reception wavelengths. Further, in the case of the three-dimensional structure, a total of 24 arithmetic units can be directly connected via each reception wavelength similarly.

The wavelength division multiplexing optical connection apparatus of this embodiment is composed of an optical waveguide 5 for coupling adjacent arithmetic devices 1 and optical signal processing units 30a to 30d for connecting the arithmetic device 1 and the optical waveguide 5. . Optical signal processing units 30a, 30b, 30
The received wavelengths processed by c and 30d are λ ₁ , λ ₂ , and
Let λ ₃ and λ ₄ .

The optical signal processing section 30a shown in FIG. 4 includes a beam splitter 11, 12, 13, 31, 32, a wavelength filter 14, photodiodes (PD) 15, 33, 34,
Transmission wavelength variable bandpass optical filter (BPF) 35, 3
6, a variable wavelength semiconductor laser (LD) 37 and an isolator 17.

The wavelength filter 14 extracts the optical signal of the reception wavelength λ ₁ from the optical signals input from the optical waveguide 5, and transmits the optical signals of other wavelengths. The optical signal of the reception wavelength λ ₁ is converted into an electric signal by the light receiving element 15 and input to the arithmetic unit 1. In addition, the optical signal processing unit 30b uses the reception wavelength λ ₂
Optical signal processing unit 30c includes a wavelength filter that reflects the optical signal of the reception wavelength λ ₃ , and the optical signal processing unit 30d includes a wavelength filter that reflects the optical signal of the reception wavelength λ _4. The other configuration is the same as that of the optical signal processing unit 30a.

The beam splitters 31 and 32 are the optical waveguides 5.
A part (eg 10%) of the optical signal input from is branched.
The branched optical signal is transmitted through the transmission wavelength variable bandpass optical filters 35 and 36 to the photodiodes 33 and 34.
Is received by. Here, if a wavelength (any one of λ _{1 to} λ ₄ ) equal to the reception wavelength (transmission wavelength) of the other party to be communicated with is set as the transmission wavelength of the transmission wavelength variable bandpass optical filters 35 and 36, the photodiode 33 , 34
It is possible to detect the presence or absence of the optical signal of the transmission wavelength from the output of. That is, it can be determined whether the transmission wavelength is already in use.

When the transmission wavelength is not used, the arithmetic unit 1 sets the transmission wavelength in the wavelength tunable semiconductor laser 37 and outputs a transmission signal addressed to the arithmetic unit and corresponding to the transmission wavelength. This transmission signal is the wavelength tunable semiconductor laser 3
It is converted into an optical signal of a transmission wavelength at 7, is branched into two at a beam splitter 13 via an isolator 17, and is input to the beam splitters 11 and 12, respectively. The beam splitters 11 and 12 multiplex the optical signal of the transmission wavelength and the optical signal transmitted through the wavelength filter 14, and send them to the optical waveguides 5 in both left and right directions.

Here, with reference to FIG. 8, a communication form performed by the arithmetic unit of the reception wavelength λ ₁ will be described. In the figure, the optical signal processing unit and the arithmetic unit are combined for convenience.

(1) is a case where the arithmetic unit, ... Is not in communication with the arithmetic unit having the reception wavelength λ ₂ , or the arithmetic unit communicates with the arithmetic unit.
Now, when an optical signal addressed to the arithmetic device is transmitted from the arithmetic device, the optical signal of wavelength λ ₂ is also transmitted in the direction of the arithmetic device. By detecting the optical signal of the wavelength λ ₂ , the arithmetic unit, ... Is prohibited from transmitting the optical signal of the wavelength λ ₂ . The same applies when an optical signal addressed to the arithmetic device is transmitted from the arithmetic device.

(2) is a case of communicating with or to the arithmetic unit having the reception wavelength λ ₃ . Similarly, the arithmetic unit,
Transmission of the optical signal of the wavelength lambda ₃ is inhibited by ,, detecting the optical signal of the wavelength lambda ₃ in.

(3) is a case of communicating with or to the arithmetic unit having the reception wavelength λ ₄ . Similarly, the arithmetic unit,
Transmission of the optical signal of wavelength lambda ₄ is prohibited by ,, detecting the optical signal of the wavelength lambda ₄ in.

(4) is a case of communicating with the arithmetic unit or the receiving wavelength λ ₁ . Similarly, the arithmetic unit ~
, Transmission of the wavelength lambda ₁ of the optical signal is prohibited by detecting the optical signal of the wavelength lambda ₁ in ~.

By periodically using a plurality of wavelengths in this manner, it is possible to equivalently directly connect distant arithmetic units by connecting only the adjacent arithmetic units, and minimize delay between them. Can be suppressed. The difference from the first embodiment is that an arithmetic unit directly connected within the range of wavelengths arranged periodically can be selected by wavelength. Therefore, by increasing the number of wavelengths, it is possible to equivalently directly connect arbitrary arithmetic devices over a wider range.

The configuration of the optical signal processing section 30a shown in FIG. 4 does not take into consideration the left-right directionality when viewed from the arithmetic unit 1. Therefore, the identification information indicating the transmission source and the transmission destination is added to the optical signals distributed and transmitted to the left and right, and the receiving side discriminates and takes in the information. Here, it is also possible to provide a means for transmitting and receiving an optical signal for each direction and to make it independent for each direction.

The configuration of the optical signal processing section 40a shown in FIG.
The transmission and reception are directional, and the beam splitters 11, 12, 31, 32, the wavelength filters 14, 41,
Photodiodes (PD) 15, 33, 34, 42, transmission wavelength variable bandpass optical filters (BPF) 35, 3
6, a wavelength tunable semiconductor laser (LD) 37, 43, and isolators 17, 44. Figure 4 shows the functions of each part
The optical signal processing unit 30a is similar to the optical signal processing unit 30a shown in FIG. 1, but control for sending out an optical signal having a transmission wavelength in the opposite direction to the transmission direction is required. However, the optical signal is for prohibiting the corresponding optical signal processing unit from using the transmission wavelength, and need not be the transmission signal itself. Also, with this configuration,
One computing device can simultaneously communicate with computing devices in both left and right directions.

By the way, in the example shown in FIG. 8, in the case of (1), the use of the wavelength λ ₂ is prohibited in the range from the arithmetic unit to the arithmetic unit.
_When communicating with ₂ , it is sufficient to prohibit the communication from the arithmetic units to the arithmetic units. Thus, for example, it is acceptable for the computing device to communicate with the computing device at wavelength λ ₂ . Further, when the arithmetic unit communicates with the arithmetic unit at the wavelength λ ₁ in (4), it is sufficient to prohibit the communication from the arithmetic unit to the arithmetic unit, and at least the wavelength λ ₁ should be used for the arithmetic unit to. There is no need to prohibit it. Such control can be easily realized by the configuration of the optical signal processing unit shown in FIG. As a result, the occupied range of each wavelength can be minimized, and the effect is particularly large in the case of (4).

[0042]

As described above, by connecting between adjacent arithmetic units by using the wavelength division multiplexing optical connection apparatus of the present invention, even remote arithmetic units can be directly equivalently connected using their own wavelengths. be able to. As a result, it is possible to reduce the communication delay between the respective arithmetic devices that make up the arithmetic system, and particularly to greatly reduce the communication delay between the distant arithmetic devices. In addition, the physical wiring that directly connects them is not required, so that the wiring area can be significantly reduced.

In the wavelength-division-multiplexed optical connection apparatus using the optical signal processing unit according to the second to fifth aspects, the communication form between adjacent arithmetic units and a predetermined arithmetic unit is fixed, but the number of wavelengths is By increasing the number, arithmetic devices at various intervals can be directly connected equivalently.

In the wavelength-multiplexed optical connection device using the optical signal processing section according to the sixth to ninth aspects, it is possible to select the arithmetic device directly connected within the range of wavelengths arranged periodically. In addition, by increasing the number of wavelengths, it is possible to directly and directly connect arbitrary arithmetic devices over a wider range and reduce communication delay.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a first embodiment of a wavelength division multiplexing optical connection apparatus of the present invention.

FIG. 2 is a block diagram showing the configuration of a one-dimensional system using the wavelength division multiplexing optical connection apparatus of the first embodiment.

FIG. 3 is a block diagram showing a schematic configuration of a two-dimensional system using the wavelength division multiplexing optical connection apparatus of the first embodiment.

FIG. 4 is a block diagram showing the configuration of a second embodiment of the wavelength division multiplexing optical connection apparatus of the present invention.

FIG. 5 is a block diagram showing a modified configuration of the second embodiment of the wavelength division multiplexing optical connection apparatus of the present invention.

FIG. 6 is a block diagram showing the configuration of a one-dimensional system using the wavelength division multiplexing optical connection apparatus of the second embodiment.

FIG. 7 is a block diagram showing a schematic configuration of a two-dimensional system using the wavelength division multiplexing optical connection apparatus of the second embodiment.

FIG. 8 is a diagram illustrating an example of a communication mode centering on the arithmetic device according to the second embodiment.

FIG. 9 is a block diagram showing a basic configuration of a conventional arithmetic system.

FIG. 10 is a block diagram showing another configuration of a conventional arithmetic system.

[Explanation of symbols]

1 arithmetic unit 2 electric wiring 5 optical waveguide 10, 20, 30, 40 optical signal processing unit 11, 12, 13, 31, 32 beam splitter 14, 21, 41 wavelength filter 15, 22, 33, 34, 42 photodiode ( P
D) 16,23 Semiconductor laser (LD) 17,24,44 Isolator 35,36 Transmission wavelength variable bandpass optical filter (BP)
F) 37,43 Tunable semiconductor laser (LD)

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Claims (9)

[Claims] 1. An arithmetic system in which a plurality of arithmetic units communicate with each other to execute a predetermined arithmetic process, wherein an optical signal of a predetermined wavelength is received from an input optical signal and input to the arithmetic unit, and another wavelength An optical signal processing unit that multiplexes and outputs an optical signal and an optical signal having a wavelength corresponding to a communication destination output from the arithmetic device, and an optical waveguide that couples adjacent arithmetic devices via the optical signal processing unit. A wavelength-multiplexed optical connection device comprising: 2. The wavelength division multiplexing optical connection apparatus according to claim 1, wherein the optical signal processing unit receives an optical signal of a wavelength assigned to each arithmetic unit among the optical signals input from the optical waveguide. Wavelength selection receiving means for inputting to each arithmetic device and passing optical signals of other wavelengths, and an output signal of each arithmetic device is converted into an optical signal of a wavelength corresponding to the arithmetic device of the communication destination, and this optical signal and the above-mentioned A wavelength division multiplexing optical connection device, comprising: a transmission unit that multiplexes an optical signal that has passed through the wavelength selection reception unit and sends the optical signal to an optical waveguide. 3. The wavelength division multiplexing optical connection apparatus according to claim 2, wherein the wavelength selection receiving means of each optical signal processing section receives the optical signal of the first wavelength, and the transmitting means receives the optical signal of the first wavelength. A wavelength division multiplexing optical connection device, which is configured to transmit and process communication between adjacent arithmetic devices. 4. The wavelength-division-multiplexed optical connection apparatus according to claim 3, wherein the wavelength selective receiving means of the predetermined optical signal processing section receives the optical signals of the first wavelength and the wavelengths other than the first wavelength, and the transmitting means of those optical signals. A wavelength division multiplexing optical connection apparatus, which is configured to transmit an optical signal of a wavelength and process communication between adjacent arithmetic units and between predetermined arithmetic units. 5. The wavelength division multiplex optical interconnection apparatus according to claim 2, further comprising wavelength selection receiving means and transmission means for each optical signal communication direction. 6. The wavelength-division-multiplexed optical connection apparatus according to claim 1, wherein the optical signal processing unit receives an optical signal of a wavelength individually assigned to each arithmetic unit among the optical signals input from the optical waveguide. Then, the wavelength selective receiving means for inputting to each arithmetic device and passing the optical signals of other wavelengths, and the output signal of each arithmetic device are converted into the optical signal of the wavelength corresponding to the arithmetic device of the communication destination, and this optical signal And a wavelength equal to the wavelength corresponding to the arithmetic unit of the communication destination, and the transmitting means for multiplexing the optical signal that has passed through the wavelength selection receiving means and transmitting to the optical waveguide, and the optical signal input from the optical waveguide. And a transmission control means for prohibiting the transmission processing of the optical signal of the wavelength when the optical signal of the above is detected. 7. The wavelength-division-multiplexed optical connection apparatus according to claim 6, wherein a plurality of kinds of wavelengths are periodically assigned to each arithmetic unit, and the optical signal processing unit uses individual wavelengths within the periodic range to handle the wavelengths. A wavelength-multiplexed optical connection device having a configuration for processing communication between arithmetic units. 8. The wavelength division multiplexing optical connection apparatus according to claim 6, wherein the transmission control means includes a beam splitter for branching a part of the optical signal input from the optical waveguide, and an optical signal branched by the beam splitter. From the optical communication device of the communication destination, an optical filter that transmits an optical signal having a wavelength equal to the wavelength corresponding to the arithmetic device of the communication destination, and a light receiving element that detects the optical signal that has passed through the optical filter. apparatus. 9. The wavelength division multiplexing optical connection apparatus according to claim 6, further comprising wavelength selection receiving means, transmission means and transmission control means for each communication direction of the optical signal.