References

http://encyclopedia2.thefreedictionary.com/Optical+communications

Laser communication transmitter and receiver design
 By David O Caplan
Journal of Optical and Fiber Communications Reports, 4, no. 4-5(2007)

http://www.space.com/missionlaunches/060104_laser_comm.html

http://www.arrl.org/files/file/Technology/tis/info/pdf/9009019.pdf

laser-communication-1222866681398711-9.ppt