Title :
Generation of millimeter wave with high frequency accuracy using Mach-Zehnder-modulator-based flat comb generator
Author :
Morohashi, Isao ; Irimajiri, Yoshihisa ; Sakamoto, Takanori ; Kawanishi, Tetsuyas ; Yasui, Motoaki ; Hosako, Iwao
Author_Institution :
Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan
Abstract :
We report on broadband comb generation using a combination of a Mach-Zehnder-modulator-based flat comb generator (MZ-FCG) and a dispersion-flattened dispersion-decreasing fiber (DF-DDF), as well as MMW signal generation using the MZ-FCG. For application of quantum cascade lasers operating in the THz range, phase-locking techniques are required to stabilize the frequency and the linewidth. Optical combs are good candidate for a reference source in the phase locking, because of the high stability and accuracy of the comb signals. Generation of a 110 GHz signal by photomixing of two-tone signal extracted from an optical comb signal has been demonstrated as a preliminary experiment.
Keywords :
frequency stability; microwave photonics; millimetre wave generation; optical fibre dispersion; optical modulation; quantum cascade lasers; signal generators; terahertz wave generation; DF-DDF; MMW signal generation; MZ-FCG; Mach-Zehnder-modulator-based flat comb generator; THz range; broadband comb generation; dispersion-flattened dispersion-decreasing fiber; frequency 110 GHz; frequency stabilization; millimeter wave generation; optical comb signal; phase-locking techniques; quantum cascade lasers; reference source; two-tone signal photomixing; Broadband communication; Nonlinear optics; Optical fiber dispersion; Optical fibers; Quantum cascade lasers; Radio frequency; dispersion-flattened dispersion-decreasing fiber; millimeter wave; optical frequency comb; terahertz wave;
Conference_Titel :
Microwave Photonics (MWP), 2012 International Topical Meeting on
Conference_Location :
Noordwijk
Print_ISBN :
978-1-4673-2863-0
DOI :
10.1109/MWP.2012.6474047
