Check patentability & draft patents in minutes with Patsnap Eureka AI!

Optical transceiver module and an emi cancellation method used thereby

一种光学收发器、光纤光缆的技术，应用在光学收发器模块领域，能够解决波长降低、不可能有效地实施等问题

Active Publication Date: 2012-07-18
AVAGO TECH INT SALES PTE LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As mentioned above, as the frequency or bit rate of optical transceiver modules continues to increase (i.e., wavelength continues to decrease), it becomes very difficult or impossible to effectively implement this type of solution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Optical transceiver module and an emi cancellation method used thereby
  • Optical transceiver module and an emi cancellation method used thereby
  • Optical transceiver module and an emi cancellation method used thereby

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] According to the invention, the optical transceiver module has an EMI cancellation device having a propagation chamber having dimensions selected based on the primary frequency of the optical transceiver module such that at least A part is subject to destructive interference and is canceled. Additionally, the EMI mitigation means may include an EMI absorbing material that absorbs at least a portion of the EMI that is not eliminated. Therefore, EMI cancellation devices are very effective at absorbing EMI to prevent it from leaving the optical transceiver module. Schematically or by way of example, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0019] figure 1 A perspective view of a parallel optical transceiver module 1 with EMI cancellation means (not shown) is shown, which will be referred to hereinafter figure 2 Describe in detail. According to this illustrative embodiment, the parallel optical tran...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention is directed to an optical transceiver module and an EMI cancellation method used thereby. The optical transceiver module comprises an optical transceiver module housing having the EMI cancellation device disposed therein. The EMI cancellation device includes a metal chamber having at least first and second walls that are generally parallel to each other. The first and second chamber walls have first and second openings formed therein, respectively, through which at least one optical fiber passes. The first and second chamber walls are separated from each other by a preselected distance selected to ensure that EMI that passes through the second opening and is incident on the first wall at a first instant in time is reflected by the first wall back toward the second wall and destructively interferes with EMI passing through the second opening at a second instant in time that is later than the first instant in time.

Description

technical field [0001] The invention relates to an optical transceiver module. More particularly, the present invention relates to apparatus and methods for canceling electromagnetic interference (EMI) for use in optical transceiver modules. Background technique [0002] An optical transceiver module is an optical communication device having a transmitter (TX) section and a receiver (RX) section. The TX section includes laser driver circuitry and at least one laser diode. A laser driver circuit outputs an electrical drive signal to each laser diode such that each laser diode is modulated. When a laser diode is modulated, it outputs an optical signal with power levels corresponding to logical ones and logical zeros. The optical system of the optical transceiver module focuses the optical signals generated by each laser diode onto the ends of respective launch fibers held within an optical connector module connected to the optical transceiver module. [0003] The RX portio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42H05K9/00
CPCG02B6/4285G02B6/4214G02B6/4277G02B6/4284H05K9/0058G02B6/4246
Inventor 劳伦斯·R·麦克洛克沈作伟
Owner AVAGO TECH INT SALES PTE LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com