Text Books:

• Optical Fiber Communication – Gerd Keiser, 4^th Edition, MGH, 2008.
• Optical Fiber Communications - John M. Senior, Pearson Education, 3^rd Edition, Impression, 2007.

Web links:

• https://www.ijser.org/paper/INTENSITY-MODULATION-FORMATS-IN-OPTICAL-COMMUNICATION-SYSTEM.html
• https://www.timbercon.com/resources/glossary/intensity-modulation/
• https://www.sciencedirect.com/topics/engineering/intensity-modulation

Youtube links:

• https://www.youtube.com/watch?v=BVKk3qJ6T8U
• https://www.youtube.com/watch?v=Ue6ubGS6sR4
• https://www.youtube.com/watch?v=nVnIAA5U5jU