TWI452366B - Selective wavelength management routing device with white spectral channel input - Google Patents

Description

Optional management wavelength white light full-frequency wavelength configuration routing device

The invention relates to a white light full-frequency wavelength configuration routing device with optional management wavelength, which is a routing device capable of completing an optional optical wavelength by simply using a Bragg fiber grating, and adjusting the Bragg center wavelength with tension or temperature. According to the appropriate grating arrangement, mutual interference between wavelength signals is avoided.

The architecture of the reconfigurable optical signal plug-in multiplexer (as proposed by Okayama et al., as shown in the third figure), although the architecture is very similar to the patent of the present invention, but the function is very different, Okayama et al.'s architecture allows only four-wavelength signals for the entire optical network. When the network has more than four-wavelength signals, the architecture will operate abnormally, so when the network wavelength signal increases. This architecture also needs to increase the corresponding Bragg fiber grating to work properly. However, when the number of wavelengths required by the network is large, the architecture needs to add additional Bragg fiber gratings when it can operate normally. This architecture wastes Bragg fiber gratings when only a small number of wavelength signals are managed.

The biggest disadvantages of the above-mentioned conventional reconfigurable optical signal plug-in multiplexer architecture are:

1. When the network is more than four wavelength signals, abnormal operation will occur.

2. The corresponding Bragg fiber grating must be added to operate normally.

3. Adding a fiber grating to manage a small number of wavelength signals, the cost is too high.

The aforementioned architecture for the reconfigurable optical signal plug-in multiplexer mentioned in the above, although it can achieve the general basic requirements and effects in the process of network signal processing, the system integrity in practical applications With the shortcomings and shortcomings of industrial applications such as network interface integration and cost control, it is impossible to exert more specific industrial applicability.

In summary, due to the use of the reconfigurable optical signal plug-in multiplexer architecture, there are some shortcomings and shortcomings. Based on the future trend of industrial progress, it is necessary to propose specific improvement plans to meet the industry. The need for progress further provides more technical options in the industry.

The invention solves the shortcomings of the integration of the conventional network system, the integration capability of the network interface construction and the industrial application specificity such as the cost control, and thus the invention patent proposes the white light full-frequency of the optional wavelength. The reconfigurable optical signal plug-in multiplexer can place the corresponding Bragg fiber grating for the wavelength signal to be managed, and other unmanaged wavelength signals can directly reach the Output, which can save a large amount of Bragg fiber. Gratings can be used directly in today's optical network environments without changing the network architecture.

Therefore, regardless of the subjective and objective conditions, the white light full-frequency wavelength configuration routing device with optional wavelength management can be used in domestic and foreign patents. Currently, there is no relevant technology applied to the construction of high-performance network signal processing racks. The advantage of replacing the technology, it is very suitable for equipment such as white light full-frequency wavelength configuration routing device industry with optional management wavelength The market is bound to bring great opportunities for the market related to the production and design of the white light full-frequency wavelength configuration routing device and its equipment.

The invention realizes a high-performance network signal processing architecture by configuring a white light full-frequency wavelength configuration routing device with an optional wavelength management.

In order to achieve the above object and function, an optional wavelength-managed white light full-frequency wavelength configuration routing device includes a light return module, a first fiber grating module and a second fiber grating module, wherein: a first light returning device and a second light returning device, the first light returning device and the second light returning device respectively comprise a first side, a second side, a first In the third layer and the fourth layer, the first layer and the fourth layer of the first photoreactor are respectively an Input埠 and an Output埠, and the first and fourth axes of the second photoreactor are respectively an Add埠And the Drop 埠, in addition, the first reticle and the second 埠 and the third 之 of the second reticle are connected.

a first fiber grating module having a plurality of fixed fiber gratings and a plurality of adjustable fiber gratings, wherein the first fiber grating module is coupled to the second and second photoreactors of the first photoreactor The second day.

a second fiber grating module having a plurality of fixed fiber gratings and a plurality of adjustable fiber gratings, wherein the second fiber grating module is coupled to the third port of the first photoreactor and the second photoreactor The third day.

The first input signal of the first photoreactor is a white light full-frequency wavelength signal.

The above complex fixed fiber grating and complex adjustable fiber grating are both Bragg fiber gratings.

The center wavelength of the plurality of fixed fiber gratings of the first fiber grating module is placed at intervals of adjacent at least one wavelength signal.

The plurality of adjustable fiber gratings of the first fiber grating module correspond to a plurality of fixed The center wavelength of the fiber grating is the same, and the adjustment range of the center wavelength of the complex tunable fiber grating is to adjust the bandwidth of the adjacent one wavelength.

The center wavelength of the above plurality of adjustable fiber gratings is adjusted in any manner of thermal modulation or tension.

The center wavelength of the plurality of fixed fiber gratings of the second fiber grating module relative to the plurality of fixed fiber gratings of the first fiber grating module is a bandwidth of a adjacent wavelength.

The plurality of adjustable fiber gratings of the second fiber grating module correspond to the plurality of adjustable fiber gratings of the first fiber grating module, and the center wavelengths of the two adjustable fiber gratings are consistent.

The plurality of adjustable fiber gratings of the first fiber grating module are correspondingly adjusted to an even wavelength, and the fixed fiber grating of the second fiber module is required to reflect the even wavelength signal of the white light full frequency to the first photoreactor. The fourth is the output.

The plurality of adjustable fiber gratings of the first fiber grating module are correspondingly adjusted to an odd-numbered wavelength, so that the even-numbered wavelength signals of the white light full-frequency are respectively taken out from the first and fourth ports of the second photoreactor as Add-Drop.

The plurality of adjustable fiber gratings of the second fiber grating module are correspondingly adjusted to an odd wavelength, so that the odd-numbered wavelength signals of the white light full-frequency are reflected to the fourth output of the first photo-return.

The plurality of adjustable fiber gratings of the second fiber grating module are correspondingly adjusted to an even number of wavelengths, so that the odd-numbered wavelength signals of the white light full-frequency are respectively taken out from the first and fourth ports of the second photoreactor as Add-Drop.

The specific features and functions of the white light full-frequency wavelength configuration routing device with optional wavelength management of the present invention are as follows:

1. Complete the optional optical wavelength routing device with a Bragg fiber grating.

2. Fit the tension or temperature to adjust the wavelength of the Bragg center.

3. In a proper grating arrangement, avoid interference of wavelength signals.

4. The combination of two fiber gratings and two 4-turn photoreactors has a simple structure.

5. The cost is cheaper than the general wavelength configuration routing device, and the economy is high.

6. Adjust the number of gratings according to network requirements, and efficiently manage the optical network.

7. Can provide network administrators, more flexible wavelength routing devices.

8. Provide low-cost wavelength routing equipment for domestic optical fiber communication networks.

9. Place the fiber grating only for the wavelength signal to be managed.

10. Wave signals that do not need to be managed can be directly output, saving costs.

11. It is not necessary to change the network architecture for the optical network environment and can be used directly.

12. The wavelength signal can be added-extracted without affecting other signals.

13. The unselected wavelength signal will not be affected by the direct output.

14. Effectively reduce the insertion loss, and also allow full-wavelength white light input.

(1)‧‧‧Returner module

(11) ‧‧‧First Light Reactor

(111)‧‧‧ first

(112)‧‧‧Second

(113)‧‧‧ Third

(114)‧‧‧Fourth

(12) ‧‧‧Second light return

(121) ‧‧‧ first

(122)‧‧‧Second

(123)‧‧‧third

(124) ‧‧‧Fourth

(2) ‧‧‧First Fiber Bragg Grating Module

(21)‧‧‧Fixed fiber grating

(22)‧‧‧Adjustable fiber grating

(3) ‧‧‧second fiber grating module

(31)‧‧‧Fixed fiber grating

(32)‧‧‧Adjustable fiber grating

First Figure: Schematic diagram of a configuration routing device according to an embodiment of the present invention.

Second: A schematic diagram of a connection of a configuration routing device according to an embodiment of the present invention.

The third figure: a schematic diagram of the connection of a conventional four-wavelength reconfigurable optical signal plug-in multiplexer device.

Please refer to the first figure, which is a schematic diagram of a configuration routing device architecture according to an embodiment of the present invention. The present invention is an optional wavelength-managed white light full-frequency wavelength configuration routing device, including a light return module (1), a a first fiber grating module (2) and a second fiber grating module (3), wherein: The photoreceiver module (1) has a first photoreactor (11) and a second photoreactor (12), the first fiber grating module (2) and the second fiber grating module (3) is connected between the first photoreactor (11) and the second photoreactor (12).

Please refer to the second figure, which is a schematic diagram of the connection of the wavelength configuration routing device according to an embodiment of the present invention, wherein the photoreceiver module (1), the first fiber grating module (2) and the second fiber grating module (3) The connection relationship is as follows: a light return module (1) has a first photoreactor (11) and a second photoreactor (12), the first photoreactor (11) and the The second photoreactors (12) each include a first side (111, 121), a second side (112, 122), a third side (113, 123) and a fourth side (114, 124). The first (111) and the fourth (114) of the first photoreactor (11) are respectively Input and Output, and the first (121) and the second of the second (12) Four 埠 (124) are added as Add-Drop to remove 埠, and the first retort (11) and the second 埠 (112, 122) and the third 该 of the second retort (12) (113, 123) are all connected, and the signal input by the first 埠 (111) of the first illuminator (11) is a white light full-frequency wavelength signal.

a first fiber grating module (2) having a plurality of fixed fiber gratings (21) and a plurality of adjustable fiber gratings (22), wherein the first fiber grating module (2) is coupled to the first light receptor (11) between the second 埠 (112) and the second 埠 (122) of the second illuminator (12), the plurality of fixed fiber gratings (21) and the plurality of tunable fiber gratings (22) are both Grid fiber grating.

The plurality of fixed fiber gratings of the first fiber grating module (2) (21) The central wavelength is spaced apart by at least one adjacent wavelength signal; the plurality of adjustable fiber gratings (22) of the first fiber grating module (2) correspond to a central wavelength of the plurality of fixed fiber gratings (21), and The adjustment range of the center wavelength of the complex tunable fiber grating (22) is to adjust the bandwidth of the adjacent one wavelength; the center wavelength of the complex tunable fiber grating (22) is either thermal modulation or tension The way to adjust.

a second fiber grating module (3) having a plurality of fixed fiber gratings (31) and a plurality of adjustable fiber gratings (32), wherein the second fiber grating module (3) is coupled to the first photoreactor Between the third 埠 (113) of the (11) and the third 埠 (123) of the second illuminator (12), the plurality of fixed fiber gratings (31) and the plurality of tunable fiber gratings (32) are both Grid fiber grating.

The center wavelength of the plurality of fixed fiber gratings (31) of the second fiber grating module (3) relative to the plurality of fixed fiber gratings (21) of the first fiber grating module (2) is a large adjacent wavelength Frequency bandwidth; the plurality of adjustable fiber gratings (32) of the second fiber grating module (3) correspond to the plurality of adjustable fiber gratings (22) of the first fiber grating module (2), and the two adjustable fiber gratings The center wavelengths of (22, 32) are the same.

The plurality of adjustable fiber gratings (22) of the first fiber grating module (2) are correspondingly adjusted to an even wavelength, and the fixed fiber grating (31) of the second fiber module (3) is required to make the white light full frequency The even wavelength signal is reflected to the fourth turn (114) of the first photoreactor (11) for output.

The plurality of adjustable fiber gratings (22) of the first fiber grating module (2) are correspondingly adjusted to odd wavelengths, so that the even wavelength signals of the white light full frequency are respectively from the second The first (121) and the fourth (124) of the photoreactor (12) are added as Add-Drop.

The plurality of adjustable fiber gratings (32) of the second fiber grating module (3) are correspondingly adjusted to odd wavelengths, so that the odd-numbered wavelength signals of the white light full-frequency are reflected to the fourth edge of the first photoreactor (11) (114). ) for output.

The plurality of adjustable fiber gratings (32) of the second fiber grating module (3) are correspondingly adjusted to an even number of wavelengths, so that the odd-numbered wavelength signals of the white light full-frequency are respectively from the first frame of the second photoreactor (12). And the fourth line (124) for Add to add - Drop to take out.

The specific feasible implementation method and theoretical content are as follows: an optional white wavelength full-wavelength wavelength configuration routing device for managing wavelengths, comprising two four-turn photoreactors (including a first photoreactor (11) and a Two light-receivers (12) and two sets of multiple fixed and adjustable Bragg fiber gratings (a first fiber grating module comprising a plurality of fixed fiber gratings (21) and a plurality of adjustable fiber gratings (22) (2) ) combined with a second fiber grating module (3) comprising a plurality of fixed fiber gratings (31) and a plurality of adjustable fiber gratings (32), in two 埠2 of the four-turner Multiple fixed and adjustable Bragg fiber gratings are placed between the second (112, 122) and the third (113, 123), and the upper branch (ie, the first fiber grating module (2) The center wavelength of the fixed multiple Bragg fiber grating is placed at intervals of adjacent at least one wavelength signal, which is represented by an odd number, and the first fiber grating module (2) and the second fiber grating module (3) are The center wavelength of the modulated fiber grating (22, 32) and the fixed fiber grating (21) corresponding to the first fiber grating module (2) The same wavelength, modulation or heat when tension is adjusted When the center wavelength of the adjustable fiber grating (22, 32) is used, it can only increase the bandwidth of an adjacent wavelength, and the center wavelength of the fixed fiber grating (31) of the second fiber grating module (3) is the same as A fiber grating module (2) fixed fiber grating (21) center wavelength greater than the adjacent wavelength bandwidth, we are represented by even numbers. Here, the wavelength signal corresponding to the center wavelength of the fixed fiber grating (21, 31) can be taken out by Add-Drop, and other wavelength signals directly penetrate all the fiber gratings (21, 31, 22, 32). To Output埠.

When the white light full-frequency wavelength signal is input from the first 埠 (111) [Input 埠] of the first illuminator (11), the wavelength signal corresponding to the center wavelength of the fixed fiber grating (21, 31) can be added by adding - The drop is taken out, and the other wavelength signals directly penetrate the first fiber grating module (2) and the second fiber grating module (3) to reach the fourth port (114) of the first photoreactor (11) [Output埠] ], and if the wavelength signal consistent with the fixed fiber grating (21, 31) directly reaches the fourth 114 (114) [Output 埠] of the first illuminator (11), the first fiber grating module ( 2) The complex tunable fiber grating (22) is adjusted to an even wavelength, and the complex tunable fiber grating (32) of the second fiber grating module (3) is adjusted to an odd wavelength, which allows Add to add -Drop to extract the wavelength signal The first fiber grating module (2) and the second fiber grating module (3) are reflected to the fourth 114 (114) of the first illuminator (11), and if Add is added - The drop removal mechanism allows the first FBG module (2) and the second FBG module (3) to adjust the complex tunable fiber grating (22, 32) away from the wavelength signal. In other words, the adjustable fiber grating (22) of the first fiber grating module (2) is adjusted to an odd wavelength, and the adjustable fiber grating (32) of the second fiber grating module (3) is adjusted to an even wavelength. Let the wavelength signal penetrate to reach the fourth turn (124) of the second photoreactor (12) [ Drop埠].

On the other hand, when the Drop takes out the wavelength signal, the corresponding wavelength can be added by Add, so that the wavelength signal added by Add can reach the output.

In summary, the present invention is directed to an application technology for a white light full-frequency wavelength configuration routing device that can optionally manage wavelengths, in particular, a method comprising a photoreactor module (1) and a first fiber grating module (2) And the white fiber full-frequency wavelength configuration routing device of the second fiber grating module (3), wherein the first fiber grating module (2) and the second fiber grating module (3) are connected to the first photoreactor ( 11) adjusting a plurality of adjustable fiber gratings of the plurality of adjustable fiber gratings (22) of the first fiber grating module (2) and the second fiber grating module (3) between the second optical device (12) 32) Form an appropriate grating arrangement to avoid mutual interference between wavelength signals.

In view of the foregoing description of the embodiments, the operation and the use of the present invention and the effects of the present invention are fully understood, but the above described embodiments are merely preferred embodiments of the present invention, and the invention may not be limited thereto. Included within the scope of the present invention are the scope of the present invention.

(1)‧‧‧Returner module

(11) ‧‧‧First Light Reactor

(12) ‧‧‧Second light return

(2) ‧‧‧First Fiber Bragg Grating Module

(3) ‧‧‧second fiber grating module

Claims (12)

An optional white light full-frequency wavelength configuration routing device for managing wavelengths, comprising: a light return module having a first photoreactor and a second photoreactor, the first photoreactor and the second The light returner includes a first side, a second side, a third side and a fourth side, and the first side and the fourth side of the first lighter are respectively Input and Output, and the second The first layer and the fourth layer of the photoreceiver are respectively added as Add and then removed, and the first and third switches are connected to the second and third of the second return; a first fiber grating module having a plurality of fixed fiber gratings and a plurality of adjustable fiber gratings, wherein the first fiber grating module is coupled to the second and second photoreactors of the first photoreactor a second fiber grating module having a plurality of fixed fiber gratings and a plurality of adjustable fiber gratings, wherein the second fiber grating module is coupled to the third and the first of the first light switches a third turn of the second optical switch; the plurality of adjustable fiber gratings of the first fiber grating module correspond to a plurality of fixed lights Uniform grating center wavelength line, and the adjustment of the adjustable center wavelength of the FBG complex, based tune a wavelength bandwidth of adjacent large. The white light full-frequency wavelength configuration routing device of the optional management wavelength according to the first aspect of the patent application, wherein the first input signal of the first photoreactor is a white light full-frequency wavelength signal. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 1, wherein the plurality of fixed fiber gratings and the plurality of adjustable fiber gratings Bragg fiber grating. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 1, wherein the central wavelength of the plurality of fixed fiber gratings of the first fiber grating module is separated by at least one wavelength signal adjacent to each other Place. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 1, wherein the center wavelength of the plurality of adjustable fiber gratings is adjusted by any one of thermal modulation or tension. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 1, wherein the plurality of fixed fiber gratings of the second fiber grating module are fixed relative to the first fiber grating module The center wavelength of the fiber grating is the bandwidth of the adjacent wavelength of the first largest. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 6 , wherein the plurality of adjustable fiber gratings of the second fiber grating module correspond to the plurality of adjustable modes of the first fiber grating module The fiber grating, and the center wavelengths of the two adjustable fiber gratings are the same. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 7 , wherein the plurality of adjustable fiber gratings of the first fiber grating module are correspondingly adjusted to an even wavelength, and the second fiber is required to be The fixed fiber grating of the module is configured to reflect the white light full-frequency wavelength signal to the fourth output of the first photoreactor. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 7 , wherein the plurality of adjustable fiber gratings of the first fiber grating module are correspondingly adjusted to an odd wavelength, so that the white light is full frequency The even-numbered wavelength signals are respectively taken out from the first and fourth ports of the second photoreactor as Add-Drop. The white light full-frequency wavelength configuration routing device with optional management wavelength as described in claim 7 of the patent application, wherein the second fiber grating module has a plurality of adjustable fiber gratings corresponding to Adjusted to an odd wavelength to reflect the white light full-frequency wavelength signal to the fourth output of the first photoreactor. The white light full-frequency wavelength configuration routing device of the optional management wavelength as described in claim 7 , wherein the plurality of adjustable fiber gratings of the second fiber grating module are correspondingly adjusted to an even wavelength, so that the white light is full frequency The odd-numbered wavelength signals are respectively taken from the first and fourth ports of the second photoreactor and added to -Drop. An optional white light full-frequency wavelength configuration routing device for managing wavelengths, comprising: a light return module having a first photoreactor and a second photoreactor, the first photoreactor and the second The light returner includes a first side, a second side, a third side and a fourth side, and the first side and the fourth side of the first lighter are respectively Input and Output, and the second The first layer and the fourth layer of the photoreceiver are respectively added as Add and then removed, and the first and third switches are connected to the second and third of the second return; a first fiber grating module having a plurality of fixed fiber gratings and a plurality of adjustable fiber gratings, wherein the first fiber grating module is coupled to the second and second photoreactors of the first photoreactor a second fiber grating module having a plurality of fixed fiber gratings and a plurality of adjustable fiber gratings, wherein the second fiber grating module is coupled to the third and the first of the first light switches a third turn of the second optical switch; the plurality of adjustable fiber gratings of the second fiber grating module correspond to the first fiber light The plurality of tunable FBG module, and the two tunable wavelength coincides with the center line of the fiber grating.