Control method and control system for compensating optical device tracking error
A tracking error and control method technology, applied in the field of optical communication systems, can solve the problems of not meeting the requirements of the agreement, not meeting the requirements of engineering use, and being unusable
Active Publication Date: 2021-08-13
山东华云光电技术有限公司
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Problems solved by technology
[0002] In the production process of Optical Sub-Assembly (OSA), tracking error (Tracking Error, TE) is an important index to evaluate its performance. When TE>±3dB, it does not meet the requirements of the agreement, nor can it meet the requirements of actual engineering use.
[0003] At present, the TE performance of OSA, especially the TE performance of single-fiber bidirectional optical sub-assembly (BOSA), is difficult to control, and there may be differences between different batches or even between different individuals in the same batch. big difference, no consistency
If the TE performance of the optical device is unqualified, the optical device will be scrapped and cannot be used, and the production loss will be very large
Method used
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[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0029] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance.
[0030] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connect...
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The invention discloses a control method and a control system for compensating the tracking error of an optical device. The control method includes: setting the first target optical power of the optical device at a first working temperature; obtaining the actual emitted optical power of the optical device ; If the difference between the actual transmitted optical power and the first target optical power is greater than the preset power difference, then the second Target optical power: inputting the second target optical power to the automatic power control circuit to control the working current of the laser through the automatic power control circuit. The present invention has the following advantages: the TE that can control the optical module is within the scope of the protocol standard.
Description
technical field [0001] The invention relates to an optical communication system, in particular to a control method and a control system for compensating optical device tracking errors. Background technique [0002] In the production process of Optical Sub-Assembly (OSA), tracking error (Tracking Error, TE) is an important index to evaluate its performance. When TE>±3dB, it does not meet the requirements of the agreement, nor can it meet the requirements of actual engineering use. . [0003] At present, the TE performance of OSA, especially the TE performance of single-fiber bidirectional optical sub-assembly (BOSA), is difficult to control, and there may be differences between different batches or even between different individuals in the same batch. Big variance, no consistency. If the TE performance of the optical device is unqualified, the optical device will be scrapped and cannot be used, and the production loss will be very large. Contents of the invention [0...
Claims
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IPC IPC(8): H04B10/079
CPCH04B10/07955H04B10/0799
Inventor 李焕功
Owner 山东华云光电技术有限公司