Title :
Novel fiber optic BPSK and QPSK modulation links
Author :
Ogawa, H. ; Horikawa, K. ; Nakasuka, Y.
Author_Institution :
NTT Radio Commun. Syst. Labs., Yokosuka, Japan
Abstract :
This paper proposes novel fiber optic BPSK and QPSK modulation links that use various combinations of optical sources, photodetectors, optical modulators, microwave hybrid circuits and microwave switches. Two BPSK modulation links, one consisting of two laser diodes (LDs) and two photodetectors (PDs), and the other two PDs and two external optical modulators (EOMs) are developed. One BPSK link is experimentally investigated and good performance is obtained. The configurations of two QPSK modulation links are also described.<>
Keywords :
hybrid integrated circuits; microwave integrated circuits; optical fibres; optical links; optical modulation; phase shift keying; photodetectors; semiconductor lasers; BPSK; QPSK; configurations; fiber optic modulation links; laser diodes; microwave hybrid circuits; microwave switches; optical modulators; optical sources; photodetectors; Binary phase shift keying; Diode lasers; Microwave circuits; Optical fibers; Optical modulation; Optical switches; Photodetectors; Quadrature phase shift keying; Switching circuits;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335159
