Last Updated: August 16, 2025
1 min read
55
There are two types of transponders
- non coherent transponders
- coherent transponders
non coherent transponders:
These transponders involve IM/DD (Intensity Modulation/Direct Detection) technique also known as OOK method for transmission of signal. In IM/DD the intensity, or power, of the light beam from a laser or a light-emitting diode (LED) is modulated by the information bits and no phase information is needed. Due to this nature, no local oscillator is required for IM/DD communication, which greatly eases the cost of the hardware.
Continue Reading This Article
Sign in with a free account to unlock the full article and access the complete MapYourTech knowledge base.
734+
Technical Articles
45+
Professional Courses
20+
Engineering Tools
47K+
Professionals
100% Free Access
No Credit Card Required
Instant Full Access
