A receiving end coupling device and method in a same-wavelength BOSA optical device

Abstract

The present invention relates to a receiving end coupling device in a BOSA optical device of the same wavelength, wherein a current source is electrically connected to a pin of a transmitting end via an electric switch, a current meter is electrically connected to a pin of a receiving end, a plurality of ports of an optical switch are respectively connected to a light source, an optical power meter and an optical fiber in an optical port of a BOSA optical device, and the receiving end is clamped on a coupling machine. The coupling method comprises the following steps: testing the optical power of an external light source; testing the transmitted optical power of a transmitting end; testing the responsiveness of a receiving end; testing the optical crosstalk of a receiving end; returning to check whether the responsiveness of a receiving end is qualified, and when both the responsiveness and the optical crosstalk are qualified, the receiving end is fixed by applying glue. The beneficial effects are as follows: during the coupling process, the responsiveness and the optical crosstalk of a receiving end are tested in real time, and when both the responsiveness and the optical crosstalk of a receiving end are qualified, the receiving end is fixed by applying glue, thereby ensuring a high yield of BOSA optical devices of the same wavelength, reducing the probability of repairing a receiving end, and saving costs.

Description

Technical Field

[0001] The present invention relates to the technical field of BOSA optical device production, and in particular to a receiving end coupling device and method in a same-wavelength BOSA optical device. Background Art

[0002] For BOSA optical devices with the same wavelength, since the receiving wavelength and the transmitting wavelength are the same, it is impossible to use a 0-degree filter to block the scattered light at the transmitting end. Therefore, full photometric crosstalk is required. The optical crosstalk CT = 10*log (L / A ), A is the responsivity of the receiving end (the responsivity tested when the optical port of the BOSA optical device is connected to an external light source, A = I / P, I is the photocurrent of the receiving end, and P is the optical power of the external light source), and L is the crosstalk responsivity (that is, the responsivity caused by the scattered light at the transmitting end when there is no external light source at the optical port of the BOSA optical device, L = i / d, i is the crosstalk photocurrent, and d is the optical power of the transmitting end). The current solution is to couple the transmitting end first, then couple the receiving end, and test the crosstalk after the glue at the receiving end is cured. If the optical crosstalk is unqualified, the device needs to be scrapped or the receiving end needs to be repaired and dismantled and recoupled, which is a great waste of materials and the yield is uncontrollable. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a receiving end coupling device and method in a same-wavelength BOSA optical device to overcome the deficiencies in the above-mentioned prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a receiving end coupling device in a same-wavelength BOSA optical device comprises: a current source, an ammeter, an optical switch and a coupling machine, the current source is electrically connected to the pin of the transmitting end in the BOSA optical device via the electric switch, the ammeter is electrically connected to the pin of the receiving end in the BOSA optical device, the multiple ports of the optical switch are respectively connected to the light source, the optical power meter and the optical fiber in the optical port of the BOSA optical device, the ammeter, the optical switch, the coupling machine, the electric switch and the optical power meter are respectively electrically connected to the control end, and the receiving end is clamped on the coupling machine.

[0005] The beneficial effect of the present invention is that for BOSA optical devices with the same wavelength, the transmitting end can be coupled and fixed first, while the receiving end is not coupled and fixed first, but is clamped on a coupling machine, and the responsiveness and optical crosstalk of the receiving end are tested in real time during the coupling process. After the responsiveness and optical crosstalk of the receiving end are qualified, the receiving end is fixed by glue, thereby ensuring that the yield of BOSA optical devices with the same wavelength is very high, greatly reducing the probability of receiving end rework, and saving costs.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the ammeter adopts a program-controlled ammeter; the optical switch adopts a program-controlled optical switch; the electric switch adopts a program-controlled electric switch; and the optical power meter adopts a program-controlled optical power meter.

[0008] Furthermore, the coupling machine adopts a six-dimensional program-controlled coupling machine.

[0009] The further beneficial effect of adopting the above is that the six-dimensional programmable coupling machine has the angle coupling function in three directions. The optical crosstalk is sensitive to the angle of the receiving end, while the responsiveness is not so sensitive to the angle. The use of the six-dimensional programmable coupling machine can increase the probability of optical crosstalk passing.

[0010] Based on the above technical solution, the present invention also provides a receiving end coupling method in a same-wavelength BOSA optical device, using the above-mentioned receiving end coupling device in a same-wavelength BOSA optical device, comprising the following steps:

[0011] S1. Test the optical power value of the external light source;

[0012] S2. Test the transmit optical power value of the transmitter in the BOSA optical device;

[0013] S3, testing the responsiveness of the receiving end. If the responsiveness is unqualified, the coupling machine is controlled to fine-tune the position and angle of the receiving end, and the responsiveness of the receiving end is tested in real time. When the responsiveness is qualified, the coupling is terminated;

[0014] S4, test the optical crosstalk of the receiving end. If it is qualified, enter S6. If it is not qualified, continue to fine-tune the position and angle of the receiving end, and test the optical crosstalk of the receiving end in real time. When the optical crosstalk is qualified, keep the position and angle of the receiving end unchanged and enter S5.

[0015] S5, check again whether the responsiveness of the receiving end at the current position and angle is qualified. If not, fine-tune the position and angle of the receiving end again, and test the responsiveness of the receiving end again in real time. When the responsiveness and optical crosstalk of the receiving end are qualified, enter S6;

[0016] S6. Apply glue to fix the receiving end to the base in the BOSA optical device.

[0017] The further beneficial effect of adopting the above method is: the transmitting end is coupled and fixed first, while the receiving end is not coupled and fixed first, but clamped on the coupling machine, and the responsiveness and optical crosstalk of the receiving end are tested in real time during the coupling process. After the responsiveness and optical crosstalk of the receiving end are qualified, the receiving end is fixed by glue, thereby ensuring that the yield of BOSA optical devices with the same wavelength is very high, greatly reducing the probability of receiving end rework and saving costs.

[0018] Further, the method for measuring the optical power of the light source is:

[0019] The control end controls the corresponding channel of the optical switch to turn on the light source, and the emission light emitted by the light source is coupled into the optical power meter through the optical switch. The optical power value of the light source is measured by the optical power meter, and the control end obtains the optical power value of the light source measured by the optical power meter.

[0020] Furthermore, the method for measuring the transmitted optical power at the transmitting end of the BOSA optical device is as follows:

[0021] The control end controls the corresponding channel of the optical switch to be turned on, and the control end controls the electric switch to be closed, the current source is turned on, and the test current output by the current source flows into the transmitting end in the BOSA optical device through the electric switch. The transmitting end emits a light beam toward the 45° filter, and the light beam is coupled into the optical fiber after being transmitted through the 45° filter, and then coupled into the optical power meter through the optical switch. The optical power meter measures the emitted light power of the transmitting end, and the control end obtains the emitted light power value of the transmitting end measured by the optical power meter.

[0022] Further, the method for testing the responsiveness of the receiving end is:

[0023] The control end controls the corresponding channel of the optical switch to be turned on, and the control end controls the electrical switch to be turned off, the ammeter and the light source are turned on, and the emission light emitted by the light source is coupled into the optical fiber through the optical switch, and then incident from the optical fiber to the 45° filter, and coupled into the receiving end through the 45° filter. The ammeter measures the response photocurrent of the receiving end, and the control end obtains the response photocurrent measured by the ammeter, and then calculates and combines it with the optical power value of the light source to determine the responsiveness of the receiving end when the optical fiber in the optical port of the BOSA optical device is connected to an external light source.

[0024] Further, the method for testing the optical crosstalk at the receiving end is:

[0025] The control end controls all channels of the optical switch to be disconnected, the electric switch to be closed, the current source and the ammeter to be turned on, and the test current output by the current source flows into the transmitting end in the BOSA optical device through the electric switch. The emission light emitted by the transmitting end is transmitted to the optical fiber in the optical port through the 45° filter, and the generated scattered light is reflected by the 45° filter and coupled into the receiving end. The ammeter measures the crosstalk photocurrent of the receiving end, and the control end obtains the crosstalk photocurrent measured by the ammeter, and then determines the optical crosstalk of the receiving end by calculation in combination with the emission light power value of the transmitting end.

[0026] Furthermore, the glue applied is UV glue.

[0027] Furthermore, the control terminal has a display interface for displaying the responsivity reading and the optical crosstalk reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the receiving end coupling device in the BOSA optical device with the same wavelength in the present invention when testing the optical power of the external light source;

[0029] Figure 2 It is a structural diagram of the test emission optical power of the receiving end coupling device in the same wavelength BOSA optical device of the present invention;

[0030] Figure 3 It is a structural diagram of the receiving end coupling device in the same wavelength BOSA optical device of the present invention when testing the receiving end responsivity;

[0031] Figure 4 It is a structural diagram of the receiving end coupling device in the same wavelength BOSA optical device of the present invention when testing the receiving end optical crosstalk;

[0032] Figure 5 It is a structural diagram of the receiving end coupling device in the same wavelength BOSA optical device of the present invention when coupling with the fixed receiving end.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Current source, 2. Ammeter, 3. Optical switch, 4. Coupler, 5. Electric switch, 6. Light source, 7. Optical power meter, 8. Control end, 9. BOSA optical device, 910. Transmitter, 920. Receiving end, 930. Optical port, 931. Optical fiber, 940. 45° filter, 950. Base. DETAILED DESCRIPTION

[0035] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0036] Example 1

[0037] like Figure 1 to Figure 5 As shown, a receiving end coupling device in a same-wavelength BOSA optical device includes: a current source 1, a current meter 2, an optical switch 3 and a coupling machine 4, the current source 1 is electrically connected to the pin of the transmitting end 910 in the BOSA optical device 9 through the electric switch 5, the current meter 2 is electrically connected to the pin of the receiving end 920 in the BOSA optical device 9, the multiple ports of the optical switch 3 are respectively connected to the light source 6, the optical power meter 7 and the optical fiber 931 in the optical port 930 in the BOSA optical device 9, the signal output end of the current meter 2 is connected to the signal of the control end 8 The input end is electrically connected, the signal input end of the optical switch 3 is electrically connected to the signal output end of the control end 8, the signal input end of the coupler 4 is electrically connected to the signal output end of the control end 8, the signal input end of the electric switch 5 is electrically connected to the signal output end of the control end 8, the signal output end of the optical power meter 7 is electrically connected to the signal input end of the control end 8, the transmitting end 910 and the optical port 930 in the BOSA optical device 9 are in a fixed state, and the receiving end 920 is in a non-fixed state before testing, so the receiving end 920 is clamped on the coupler 4.

[0038] Example 2

[0039] like Figure 1 to Figure 5 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0040] The ammeter 2 adopts a programmable ammeter, the optical switch 3 adopts a programmable optical switch, the electric switch 5 adopts a programmable electric switch, the optical power meter 7 adopts a programmable optical power meter, and the coupler 4 adopts a six-dimensional programmable coupler. The six-dimensional programmable coupler has angle coupling functions in three directions. The optical crosstalk is sensitive to the angle of the receiving end 920, while the responsiveness is not so sensitive to the angle. The use of a six-dimensional programmable coupler can increase the probability of optical crosstalk passing.

[0041] Example 3

[0042] like Figure 1 to Figure 5 As shown, a method for coupling a receiving end in a same-wavelength BOSA optical device, using a receiving end coupling device in a same-wavelength BOSA optical device as in Example 1 or 2, comprises the following steps:

[0043] S1, testing the optical power value of the external light source 6;

[0044] S2, testing the transmission optical power value of the transmitting end 910 in the BOSA optical device 9;

[0045] S3, when the receiving end 920 is not fixed, the responsiveness of the receiving end 920 is tested. If the responsiveness is unqualified, the coupling machine 4 is controlled to fine-tune the position and angle of the receiving end 920, and the responsiveness of the receiving end 920 is tested in real time. When the responsiveness is qualified, the coupling is terminated;

[0046] S4, when the position and angle of the receiving end 920 remain unchanged, test the optical crosstalk of the receiving end 920, if qualified, proceed to S6, if not qualified, control the coupling machine 4 to continue to fine-tune the position and angle of the receiving end 920, and test the optical crosstalk of the receiving end 920 in real time, and proceed to S5 when the optical crosstalk is qualified;

[0047] S5, check again whether the responsiveness of the receiving end 920 at the current position and angle is qualified. If not qualified, fine-tune the position and angle of the receiving end 920 again, and test the responsiveness of the receiving end 920 again in real time. When both the responsiveness and the optical crosstalk of the receiving end 920 are qualified, enter S6. Generally, the tolerance of the responsiveness is relatively large, and the optical crosstalk is relatively sensitive. By fine-tuning the coupling position of the receiving end 920, the optical crosstalk can be qualified while the responsiveness remains unchanged.

[0048] S6. Apply glue to fix the receiving end 920 to the base 950 in the BOSA optical device 9.

[0049] Example 4

[0050] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 3, and the details are as follows:

[0051] The method for measuring the optical power of light source 6 is:

[0052] The corresponding channel of the optical switch 3 is controlled to be turned on via the control terminal 8, that is, the light source 6 is coupled with the optical power meter 7 via the optical switch 3, the light source 6 is turned on, and the emission light emitted by the light source 6 is coupled into the optical power meter 7 via the optical switch 3. The optical power value of the light source 6 is measured by the optical power meter 7, and the control terminal 8 obtains the optical power value of the light source 6 measured by the optical power meter 7.

[0053] Example 5

[0054] like Figure 2 As shown, this embodiment is a further improvement on the basis of Embodiment 3 or 4, and the details are as follows:

[0055] The method for measuring the emission optical power of the emission end 910 in the BOSA optical device 9 is:

[0056] The corresponding channel of the optical switch 3 is controlled to be turned on through the control end 8, that is, the optical fiber 931 in the optical port 930 in the BOSA optical device 9 is coupled with the optical power meter 7, and the electric switch 5 is controlled to be closed through the control end 8, and the current source 1 is turned on. The test current output by the current source 1 flows into the transmitting end 910 in the BOSA optical device 9 through the electric switch 5. The transmitting end 910 emits a light beam to the 45° filter 940. The light beam is transmitted through the 45° filter 940 and coupled into the optical fiber 931, and then coupled into the optical power meter 7 through the optical switch 3. The optical power meter 7 measures the emitted light power of the transmitting end 910, and the control end 8 obtains the emitted light power value of the transmitting end 910 measured by the optical power meter 7.

[0057] Example 6

[0058] like Figure 3 As shown, this embodiment is a further improvement on any one of Embodiments 3 to 5, and the details are as follows:

[0059] The method for testing the responsiveness of the receiving end 920 is:

[0060] The control end 8 controls the corresponding channel of the optical switch 3 to be turned on, that is, the light source 6 is coupled with the optical fiber 931 in the optical port 930 of the BOSA optical device 9, and the control end 8 controls the electric switch 5 to be disconnected, the ammeter 2 and the light source 6 are turned on, and the emission light emitted by the light source 6 is coupled into the optical fiber 931 through the optical switch 3, and then incident from the optical fiber 931 to the 45° filter 940, and coupled into the receiving end 920 through the 45° filter 940, and the ammeter 2 measures the response photocurrent of the receiving end 920, and the control end 8 obtains the response photocurrent measured by the ammeter 2, and then calculates and determines the responsiveness of the receiving end 920 when the optical fiber 931 in the optical port 930 of the BOSA optical device 9 is connected to the external light source 6 by combining the optical power value of the light source 6.

[0061] Example 7

[0062] like Figure 4 As shown, this embodiment is a further improvement on any one of Embodiments 3 to 6, and the details are as follows:

[0063] The method for testing the optical crosstalk of the receiving end 920 is:

[0064] All channels of the optical switch 3 are disconnected through the control end 8, that is, the optical fiber 931, the light source 6, and the optical power meter 7 in the optical port 930 of the BOSA optical device 9 are disconnected, the electric switch 5 is closed, the current source 1 and the ammeter 2 are turned on, and the test current output by the current source 1 flows into the transmitting end 910 in the BOSA optical device 9 through the electric switch 5. The emission light emitted by the transmitting end 910 is transmitted to the optical fiber 931 in the optical port 930 through the 45° filter 940, and the generated scattered light is reflected by the 45° filter 940 and coupled into the receiving end 920. The ammeter 2 measures the crosstalk photocurrent of the receiving end 920, and the control end 8 obtains the crosstalk photocurrent measured by the ammeter 2, and then determines the optical crosstalk of the receiving end 920 through calculation in combination with the emission light power value of the transmitting end 910.

[0065] Example 8

[0066] like Figure 1 to Figure 5 As shown, this embodiment is a further improvement on any one of Embodiments 3 to 7, and the details are as follows:

[0067] The glue applied may be UV glue. The control terminal 8 has a display interface for displaying the responsivity reading and the optical crosstalk reading. The control terminal 8 may be a computer.

[0068] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A receiving end coupling method in a same-wavelength BOSA optical device, characterized in that: The receiving end coupling device of the same wavelength BOSA optical device used includes: A current source (1), an ammeter (2), an optical switch (3) and a coupling machine (4), wherein the current source (1) is electrically connected to a pin of a transmitting end (910) in a BOSA optical device (9) via an electric switch (5), the ammeter (2) is electrically connected to a pin of a receiving end (920) in the BOSA optical device (9), the multiple ports of the optical switch (3) are respectively connected to a light source (6), an optical power meter (7) and an optical fiber (931) in an optical port (930) in the BOSA optical device (9), the ammeter (2), the optical switch (3), the coupling machine (4), the electric switch (5) and the optical power meter (7) are respectively electrically connected to a control end (8), and the receiving end (920) is clamped on the coupling machine (4); The coupling steps are as follows: S1, testing the optical power value of the external light source (6); S2, testing the emission optical power value of the emission end (910) in the BOSA optical device (9); S3, testing the responsiveness of the receiving end (920), if the responsiveness is unqualified, controlling the coupling machine (4) to fine-tune the position and angle of the receiving end (920), and testing the responsiveness of the receiving end (920) in real time, and terminating the coupling when the responsiveness is qualified; S4, testing the optical crosstalk of the receiving end (920), if it is qualified, proceeding to S6, if it is unqualified, continuing to fine-tune the position and angle of the receiving end (920), and testing the optical crosstalk of the receiving end (920) in real time, when the optical crosstalk is qualified, keeping the position and angle of the receiving end (920) unchanged, and proceeding to S5; S5, check again whether the responsiveness of the receiving end (920) at the current position and angle is qualified. If not qualified, fine-tune the position and angle of the receiving end (920) again, and test the responsiveness of the receiving end (920) again in real time. When the responsiveness and optical crosstalk of the receiving end (920) are qualified, enter S6; S6. Apply glue to fix the receiving end (920) to the base (950) in the BOSA optical device (9).

2. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The ammeter (2) is a program-controlled ammeter; the optical switch (3) is a program-controlled optical switch; the electric switch (5) is a program-controlled electric switch; and the optical power meter (7) is a program-controlled optical power meter.

3. A receiving end coupling method in a same-wavelength BOSA optical device according to claim 1 or 2, characterized in that: The coupling machine (4) is a six-dimensional program-controlled coupling machine.

4. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The method for measuring the optical power of the light source (6) is: The control end (8) controls the corresponding channel of the optical switch (3) to be turned on, and the light source (6) is turned on. The emitted light emitted by the light source (6) is coupled into the optical power meter (7) through the optical switch (3). The optical power value of the light source (6) is measured by the optical power meter (7), and the control end (8) obtains the optical power value of the light source (6) measured by the optical power meter (7).

5. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The method for measuring the emission light power of the emission end (910) in the BOSA optical device (9) is: The control end (8) controls the corresponding channel of the optical switch (3) to be turned on, and the control end (8) controls the electric switch (5) to be closed, the current source (1) is turned on, the test current output by the current source (1) flows into the transmitting end (910) in the BOSA optical device (9) through the electric switch (5), the transmitting end (910) emits a light beam to the 45° filter (940), the light beam is transmitted through the 45° filter (940) and then coupled into the optical fiber (931), and then coupled into the optical power meter (7) through the optical switch (3), the optical power meter (7) measures the emitted light power of the transmitting end (910), and the control end (8) obtains the emitted light power value of the transmitting end (910) measured by the optical power meter (7).

6. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The method for testing the responsiveness of the receiving end (920) is: The control end (8) controls the corresponding channel of the optical switch (3) to be turned on, and the control end (8) controls the electric switch (5) to be turned off, the ammeter (2) and the light source (6) are turned on, the emission light emitted by the light source (6) is coupled into the optical fiber (931) through the optical switch (3), and then incident on the 45° filter from the optical fiber (931), and is coupled into the receiving end (920) through the emission of the 45° filter (940), the ammeter (2) measures the response photocurrent of the receiving end (920), the control end (8) obtains the response photocurrent measured by the ammeter (2), and then calculates and determines the response degree of the receiving end (920) when the optical fiber (931) in the optical port (930) of the BOSA optical device (9) is connected to the external light source (6) by combining the light power value of the light source (6).

7. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The method for testing the optical crosstalk of the receiving end (920) is: The control end (8) controls all channels of the optical switch (3) to be disconnected, the electric switch (5) to be closed, the current source (1) and the ammeter (2) to be turned on, the test current output by the current source (1) flows into the transmitting end (910) in the BOSA optical device (9) through the electric switch (5), the emission light emitted by the transmitting end (910) is transmitted to the optical fiber (931) in the optical port (930) through the 45° filter (940), the generated scattered light is reflected by the 45° filter (940) and coupled into the receiving end (920), the ammeter (2) measures the crosstalk photocurrent of the receiving end (920), the control end (8) obtains the crosstalk photocurrent measured by the ammeter (2), and then calculates and determines the optical crosstalk of the receiving end (920) in combination with the emission light power value of the transmitting end (910).

8. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The glue used is UV glue.

9. The method for coupling receiving ends in a same-wavelength BOSA optical device according to claim 1, characterized in that: The control terminal (8) has a display interface for displaying the responsivity reading and the optical crosstalk reading.

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