Evaluation of frequency stability of terahertz waves generated by Mach-Zehnder-modulator-based flat comb generator

Isao Morohashi, Yoshihisa Irimajiri, Motohiro Kumagai, Takahide Sakamoto, Norihiko Sekine, Tetsuya Kawanishi, Motoaki Yasui, Iwao Hosako

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In order to generate a reference signal used in phase locking of quantum cascade lasers (QCLs) operating in the THz range, we adopted a photonic down-conversion technique. Optical two-tone signals are created by a combination of a Mach-Zehnder-modulator-based flat comb generator (MZ-FCG) and a dispersion-flattened dispersion-decreasing fiber (DF-DDF). THz signals generated from the two-tone signal by using a uni-traveling carrier diode (UTC-PD). We have demonstrated generation of 700 GHz signals, and confirmed that the signal has the C/N ratio of greater than 30 dB and the frequency stability of 10 -11 at the averaging time of 1 sec.

Original languageEnglish
Title of host publication2013 IEEE International Topical Meeting on Microwave Photonics, MWP 2013
PublisherIEEE Computer Society
Pages206-209
Number of pages4
ISBN (Print)9781467360715
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event2013 IEEE International Topical Meeting on Microwave Photonics, MWP 2013 - Alexandria, VA, United States
Duration: 2013 Oct 282013 Oct 31

Publication series

Name2013 IEEE International Topical Meeting on Microwave Photonics, MWP 2013

Other

Other2013 IEEE International Topical Meeting on Microwave Photonics, MWP 2013
Country/TerritoryUnited States
CityAlexandria, VA
Period13/10/2813/10/31

Keywords

  • dispersion-flattened dispersion-decreasing fiber
  • optical frequency comb
  • terahertz wave

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Fingerprint

Dive into the research topics of 'Evaluation of frequency stability of terahertz waves generated by Mach-Zehnder-modulator-based flat comb generator'. Together they form a unique fingerprint.

Cite this