Title :
Detection of optical PM signals by a synchronized quantum cascade laser
Author :
Chattopadhyay, Taraprasad ; Bhattacharyya, Prosenjit
Author_Institution :
Dept. of Phys., Visva-Bharati Univ., Santiniketan, India
Abstract :
This paper presents the concept and theory of a novel method of demodulation of optical PM signals by utilizing the PM-AM conversion property of a synchronized quantum cascade laser. The converted AM can be detected by a photodetector. The dependence of the PM-AM conversion process on the amplitude and frequency of the input phase modulation and the detuning of the input optical carrier frequency from the free-running slave QCL has been explored.
Keywords :
amplitude modulation; demodulation; laser tuning; optical information processing; optical modulation; optical signal detection; phase modulation; photodetectors; quantum cascade lasers; PM-AM conversion property; detuning; free-running slave QCL; optical PM signals; optical carrier frequency; phase modulation; photodetector; synchronized quantum cascade laser; Frequency conversion; Frequency modulation; Nonlinear optics; Optical modulation; Phase modulation; Quantum cascade lasers; Synchronization;
Conference_Titel :
Photonics Global Conference (PGC), 2010
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9882-6
DOI :
10.1109/PGC.2010.5705984
