Title :
Optical generation of 94 GHz millimeter wave signal
Author :
Chattopadhyay, Taraprasad ; Bhattacharyya, P.
Author_Institution :
Dept. of Phys., Visva-Bharati Univ., Santiniketan, India
Abstract :
An all-optical circuit for 94 GHz millimeter wave signal generation is proposed and analyzed in this paper. A CW lightwave having a frequency offset five times the repetition frequency of the optical pulse from the centre frequency of the pulse can be generated by using an arrayed waveguide grating. When this CW lightwave is mixed with the original pulse train in a wideband unitravelling carrier photodiode, it is possible to generate spectrally pure 94 GHz mm-wave signal using a pulse repetition frequency of 18.8 GHz. Calculated power of the generated 94 GHz signal is typically of the order of 1 mW.
Keywords :
arrayed waveguide gratings; microwave photonics; millimetre wave generation; optical pulse generation; photodiodes; CW lightwave; all-optical circuit; arrayed waveguide grating; frequency 18.8 GHz; frequency 94 GHz; frequency offset; millimeter wave signal generation; optical generation; optical pulse; power 1 mW; wideband unitravelling carrier photodiode; Fabry-Perot laser diode; Millimeter wave; Optical Phase Modulator; Optical Pulse Generator; Optical Time Lens; Optical injection-locking;
Conference_Titel :
Circuits and Systems (ICCAS), 2013 IEEE International Conference on
Conference_Location :
Kuala Lumpur
DOI :
10.1109/CircuitsAndSystems.2013.6671614
