Title :
Optical Frequency Comb Block Generation by Using Semiconductor Mach–Zehnder Modulator
Author :
Yamamoto, Takahiro ; Hitomi, Kotaro ; Kobayashi, Wataru ; Yasaka, Hiroshi
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
A nine-channel optical frequency comb block is successfully generated by using an InP-based Mach-Zehnder modulator. The intensity deviation of the comb block is measured to be 4.9 dB, which agrees with the predicted value by numerical analysis. The wavelength of the comb block can be tuned from 1525 to 1565 nm successfully with constant RF modulation signal amplitude. It is achieved by simply controlling the dc bias applied to the modulator according to the operation wavelength.
Keywords :
III-V semiconductors; indium compounds; microwave photonics; optical communication equipment; optical modulation; InP; constant RF modulation signal amplitude; intensity deviation; nine channel optical frequency comb; optical frequency comb block generation; semiconductor Mach-Zehnder modulator; wavelength 1525 nm to 1565 nm; Amplitude modulation; Frequency modulation; Optical amplifiers; Optical filters; Optical interferometry; Optical modulation; Mach–Zehnder modulator; optical frequency comb; semiconductor optical modulator; sideband generation;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2227696
