-
- Sopto Home
-
- Special Topic
-
- Module Knowledge
-
- Optical Module-Extinction Ratio
Module Knowledge
- Tips for Buying 10G XFP Transceivers
- XFP Transceivers for Telecommunications
- Three Types of Ethernet SFP Transceiver Modules Introduction
- Info about High Density CXP Optical Module
- Multipurpose CFP Optical Modules
- Info about CFP Management Interface
- SFP+ Transceivers Short Range Module Overview
- 3 Reasons Every Network Needs GLC-LH-SM Transceiver
- Is the GLC-SX-MM Transceiver Right for Your Switch?
SOPTO Special Topic
Certificate
Guarantee
Except products belongs to Bargain Shop section, all products are warranted by SOPTO only to purchasers for resale or for use in business or original equipment manufacturer, against defects in workmanship or materials under normal use (consumables, normal tear and wear excluded) for one year after date of purchase from SOPTO, unless otherwise stated...
Return Policies
Defective products will be accepted for exchange, at our discretion, within 14 days from receipt. Buyer might be requested to return the defective products to SOPTO for verification or authorized service location, as SOPTO designated, shipping costs prepaid. .....
Applications
Fiber Optic Transceiver Modules can be applied to these occasions or fields.
Ethernet
IPTV
FTTX
Security
Video Monitor
SDH/SONET
Data Communication
Storage Area Networks
SNS Page
SOPTO Products
- Fiber Optic Transceiver Module
- High Speed Cable
- Fiber Optical Cable
- Fiber Optical Patch Cords
- Splitter CWDM DWDM
- PON Solution
- FTTH Box ODF Closure
- PCI-E Network Card
- Network Cables
- Fiber Optical Adapter
- Fiber Optical Attenuator
- Fiber Media Converter
- PDH Multiplexers
- Protocol Converter
- Digital Video Multiplexer
- Fiber Optical Tools
- Compatible
Related Products
10G SFP+ Transceiver-180x180.JPG)
10G XENPAK
40G QSFP+ TransceiverPerformance Feature
Stable
Low cost
Small size
Economic
Dust-proof
High speed
Hot-pluggable
Good EMI, EMC
Wide appliaction field
DDM function available
Long transmission distance
Good Anti-static performance
Module Knowledge
Recommended
Extinction Ratio
In telecommunications, extinction ratio (re) is the ratio of two optical power levels of a digital signal generated by an optical source, e.g., a laser diode. The extinction ratio may be expressed as a fraction, in dB, or as a percentage. It may be given by r_e = \frac{P_1}{P_0}, where P1 is the optical power level generated when the light source is on, and P0 is the power level generated when the light source is off.
The polarization extinction ratio is the ratio of optical powers of perpendicular polarization, usually called TE (transverse electrical) and TM (transverse magnetic).
.jpg)
Eye diagram showing an example of two power levels in an OOK modulation scheme which can be used to calculate extinction ratio. P1 and P0 are represented by (binary '1') and (binary '0') respectively.
Related Knowledge:
Guess Products You May Like:
