【Answer】1.B 2.A 3.AC 4.A 5.B
【Winner】DragonVN, kita, sam_san, yogijain, E.DR_91
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Hello, everyone!
Welcome to join the Community Learning week Optical Module Technology topic!
Network class learning time of this phase: May 17th - May 22nd.
Answer time of this class: May 18th, 2 AM - May 19th, 10 AM (UTC+0)
Class topic
Post 1. Optical Module Types
Optical modules are important components in optical fiber communication. The major optical module types used by WDM equipment, which are classified by module encapsulation types, include eSFP, SFP+/XFP, CFP, and so on... More
Post 2. Optical Module Encapsulation Types
For different rates supported by optical modules, different application scenarios, and limited by physical characteristics and technologies, manufacturers encapsulate optical modules into different types when making optical modules... More
Post 3. Mean Launched Optical Power & Extinction Ratio
Mean Launched Optical Power and Extinction Ratio are two important indexes of the optical module, and their values will affect the performance of the optical module... More
Post 4. SMSR&Transmit Eye Pattern
Minimum Side Mode Suppression Ratio (SMSR): The ratio of the average optical power of the main mode to the optical power of the most prominent side mode under the worst reflection condition... More
Post 5. Receiver Sensitivity and Overload Point
Receiver sensitivity and overload point are both critical facets of optical power. If the input optical power is less than the receiver sensitivity, it is too weak to ensure that equipment receives signals. If the input optical power exceeds the overload point, it may be impossible to achieve the expected BER performance, and even the device will be damaged... More
Class Questions
After attending this class, please answer the following questions and comment with the answers below this post.
1. Which optical module can be used to transmit 8G fiber channel (FC) services and 10G Ethernet services?
A. eSFP
B. SFP+
C. CFP
2. CFP2 optical module is a 100G pluggable optical module and usually used as a 100G Ethernet interconnection link.
A. True
B. False
3. (Multiple-Choices Question)Which of the following is the influence of extinction ratio on optical communication systems?
A. The larger the extinction ratio, the better the logical discrimination at the receiving end.
B. The higher the extinction ratio, the poorer the logic discrimination at the receiving end.
C. The smaller the extinction ratio, the greater the possibility of signal interference and increased BER.
D. Extinction ratio has no effect on the optical communication systems.
4. For the Side Mode Suppression Ratio (SMSR), The higher it is, the better the laser performance.
A. True
B. False
5. Which of the following statements about the receiver sensitivity of an optical module are correct?
A. The larger the receiver sensitivity, the better the receiver performance
B. The larger the receiver sensitivity, the poorer the receiver performance.
C. The optical module has no limitation on the receiver sensitivity.
Hope you get good grades, come and enjoy this learning party! 
These activities have ended and the correct answers have been changed to green. Congratulations to the right person. Thank you very much for your participation. Welcome to continue to learn about transmission network.
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