Title :
Single side-band modulation performance of a LiNbO3 integrated modulator consisting of four-phase modulator waveguides
Author :
Shimotsu, S. ; Oikawa, S. ; Saitou, T. ; Mitsugi, N. ; Kubodera, K. ; Kawanishi, T. ; Izutsu, M.
Author_Institution :
New Technol. Res. Lab., Sumitomo Osaka Cement, Chiba, Japan
fDate :
4/1/2001 12:00:00 AM
Abstract :
Single side-band (SSB) technologies are especially useful in optical fiber communication systems, such as higher density wavelength multiplexing and long-haul fiber transmission due to less nonlinear optical effects, because of the reduced optical power. This letter reports on the SSB modulation performance of a LiNbO/sub 3/ integrated modulator consisting of four phase modulator waveguides. Optical SSB modulation with suppressions of main carrier (-22.6 dB) and J/sub 3/ subcarrier (-18.4 dB) of a 10-GHz single-tone signal with a driving voltage of 6.3 V/sub p-p/ was demonstrated. The total insertion loss was 10.6 dB.
Keywords :
electro-optical modulation; lithium compounds; microwave photonics; optical communication equipment; optical losses; optical materials; optical waveguides; wavelength division multiplexing; 10.6 dB; LiNbO/sub 3/; LiNbO/sub 3/ integrated modulator; SSB modulation; driving voltage; four-phase modulator waveguides; higher density wavelength multiplexing; long-haul fiber transmission; nonlinear optical effects; optical fiber communication systems; phase modulator waveguides; reduced optical power; single side-band modulation performance; single-tone signal; total insertion loss; Amplitude modulation; Fiber nonlinear optics; Insertion loss; Nonlinear optics; Optical fiber communication; Optical losses; Optical modulation; Optical waveguides; Phase modulation; Voltage;
Journal_Title :
Photonics Technology Letters, IEEE
