Title :
Optical transmission of narrow-band millimeter-wave signals by resonant modulation of monolithic semiconductor lasers
Author :
Georges, John B. ; Kiang, Meng-Hsing ; Heppell, Kevin ; Sayed, Mohamed ; Lan, K.Y.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA
fDate :
4/1/1994 12:00:00 AM
Abstract :
We demonstrate the use of monolithic semiconductor lasers as efficient narrow-band (20-300 MHz) millimeter-wave optical transmitters at a cavity round-trip resonant frequency of 45 GHz. The modulation efficiency within the passband is >10 dB above that of a conventional laser diode at frequencies below relaxation oscillation. At an input RF drive power of 10 dBm, a carrier-to-noise ratio of 90 dB (1 Hz) is achieved. We also present a system demonstration of this technique in which 50 Mb/s digital data is transmitted at a 45 GHz subcarrier over optical fiber. This is the highest subcarrier frequency transmission reported to date.<>
Keywords :
optical fibres; optical modulation; semiconductor lasers; 20 to 300 MHz; 45 GHz; 50 Mbit/s; RF drive power; carrier-to-noise ratio; cavity round-trip resonant frequency; digital data; modulation efficiency; monolithic semiconductor lasers; narrow-band millimeter-wave signals; optical fiber; optical transmission; resonant modulation; subcarrier frequency transmission; Diode lasers; Millimeter wave technology; Narrowband; Optical fibers; Optical modulation; Optical transmitters; Passband; Radio frequency; Resonant frequency; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
