The invention discloses a PAM4 optical module receiving output control circuit, method and system, and the method comprises the following steps: receiving an optical signal, converting the optical signal into a PAM4 electric signal, and outputting the PAM4 electric signal; detecting optical parameters of the optical receiving module in real time, and outputting an optical parameter detection signal; and when it is determined that the optical parameter corresponding to the optical parameter detection signal is not matched with a first preset parameter threshold according to the optical parameter detection signal, stopping outputting the PAM4 electric signal, and outputting an LOS alarm signal. According to the invention, the problem that the PAM4 coding chip is falsely triggered when receiving the alarm or the output cannot be suppressed after receiving the alarm is solved.

PAM4 optical module receiving output control circuit, method and system

The invention provides an optical communication device, OLT equipment and a communication link, and the optical communication device comprises an ROSA assembly which is used for receiving an optical signal inputted by an external ONU device, converting the optical signal into a high-frequency electric signal; a driving assembly whichis connected with the ROSA assembly, wherein the driving assemblyis connected with the ROSA assembly, and the driving assembly is used for amplifying the electric signal and outputting the amplified electric signal. It can be understood that by arranging the driving assembly at the rear end of the ROSA assembly for amplification, the signal transmission bandwidth can be effectively increased, high-frequency electric signal attenuation can be effectively reduced, and therefore the problems of signal attenuation and poor sensitivity can be effectively solved. Moreover, the driving assembly is of a stable and mature structure, so that the production efficiency and the yield are not influenced by the arrangement of the driving assembly.

Optical communication device, OLT equipment and communication link

The invention discloses a temperature control stabilizing device. The device comprises a temperature measurement module used for measuring the temperature data of a temperature control area, a temperature adjusting module used for heating or cooling the temperature control area, a working current compensation module used for adjusting the working current in real time, and a control module used forcontrolling the working current of the temperature adjusting module according to the temperature data and controlling the working current compensation module to adjust the working current in real time according to the actual working current of the temperature adjusting module. The defects in the prior art can be overcome, and the temperature control precision is improved.

Temperature control stabilizing device and control method thereof

The invention discloses an optical receiving module and an optical module. The light receiving module comprises a photodiode, a trans-impedance amplifier, an LA + CDR high-speed chip, a sampling resistor, a first cross-coupling capacitor, a second cross-coupling capacitor, a third cross-coupling capacitor, a fourth cross-coupling capacitor, a voltage comparison circuit and a reference voltage generation circuit; a sampling voltage signal converted and output by the sampling resistor is compared with a preset reference voltage signal output by the reference voltage generation circuit through the voltage comparison circuit; when the sampling voltage signal is smaller than a preset reference voltage signal, a direct-current alarm signal is output to external transmission equipment, and a direct current alarm is achieved; when the temperature of the trans-impedance amplifier changes, the output current of the trans-impedance amplifier is not changed, and the voltage comparison circuit directly outputs a direct-current alarm signal and is not interfered by an LA + CDR high-speed chip, so that the reliability of the optical receiving module is improved.

Optical receiving module and optical module

The invention discloses a current correction method of an optical module. The method comprises the following steps: obtaining an original temperature lookup table of an optical module and a plurality of bias current debugging values in a preset temperature interval; calculating and obtaining a corresponding correction value according to the plurality of bias current debugging values and a preset calculation formula, and correcting the original temperature lookup table according to the correction value. The invention also discloses a current correction device of the optical module and a computer readable storage medium. The method for correcting the temperature lookup table of the optical module can be achieved, it is guaranteed that the optical module is within a certain high-temperature range, the optical module can load appropriate bias current to a laser, and the extinction ratio of the optical module is stabilized within a certain range.

Current correction method and device of optical module and computer readable storage medium

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Wang Yanwei

Author Tools

Chat about Author

Papers

Optical receiving module and optical module

Current correction method and device of optical module and computer readable storage medium