Title :
Resonantly enhanced semiconductor lasers for efficient transmission of millimeter wave modulated light
Author :
Nagarajan, Radhakrishnan ; Levy, Shmuel ; Mar, Alan ; Bowers, John E.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
External cavity semiconductor lasers with resonantly enhanced modulation response are shown to be suitable for efficient narrowband data transmission in the millimeter-wave range (35 GHz) at frequencies beyond the intrinsic modulation bandwidth of the diode. A small-signal rate equation model is presented to analyze the modulation response as well as the amplitude noise in such a resonant transmitter system. Analysis and measurements show that the relative intensity noise is also resonantly enhanced, but the signal-to-noise ratio is not degraded.<>
Keywords :
laser cavity resonators; laser theory; optical modulation; semiconductor device noise; semiconductor lasers; 35 GHz; amplitude noise; efficient narrowband data transmission; external cavity semiconductor lasers; intrinsic modulation bandwidth; millimetre wave modulated light efficient transmission; modulation response; relative intensity noise is also resonantly enhanced, but the signal-to-noise ratio; resonant transmitter system; resonantly enhanced modulation response; small-signal rate equation model; Data communication; Frequency; Laser modes; Laser noise; Millimeter wave measurements; Narrowband; Resonance; Semiconductor device noise; Semiconductor lasers; Signal to noise ratio;
Journal_Title :
Photonics Technology Letters, IEEE
