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Author Kiuchi, H. ♦ Kawanishi, T. ♦ Yamada, M. ♦ Sakamoto, T. ♦ Tsuchiya, M. ♦ Amagai, J. ♦ Izutsu, M.
Sponsorship IEEE Microwave Theory and Techniques Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1963
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Extinction ratio ♦ Optical modulation ♦ Signal generators ♦ Laser stability ♦ Optical devices ♦ Phase modulation ♦ Phase locked loops ♦ Optical control ♦ Robust stability ♦ Feeds ♦ phase stability ♦ Allan variance ♦ high-frequency signal generator ♦ lithium niobate Mach–Zehnder (MZ) modulator
Abstract Research into optical modulators has made remarkable progress in recent years. This paper discusses the possibility of applying the high extinction ratio optical modulator to a high-stability and high-frequency (over 100 GHz) optical reference signal generator. High-frequency reference signals are generated by a highly stable optical two-tone generator, which is used for high-rate communication and astronomical application. One method to generate two optical signals is producing them from a pair of laser sources using an optical phase-locked loop for feed back control; however, the optical phase-locked loop has a stability problem in its operation. A good alternative method to the optical phase-locked scheme is the LiNbO<sup>3</sup> Mach-Zehnder (MZ) optical intensity modulator, which is capable of generating two highly stable optical signals (upper sideband and lower sideband components) by applying a sinusoidal microwave signal to an input laser signal. The two optical signals require phase stability better than 10<sup>-13</sup> in the Allan standard deviation, vibration robustness, and polarization maintaining capability. The signal coherence loss estimated from the phase stability of the two optical signals generated by the MZ modulator shows that the optical MZ modulator has the ability to generate highly stable optical signals.
Description Author affiliation :: Nat. Astron. Obs. of Japan, Tokyo
ISSN 00189480
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2007-09-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 55
Issue Number 9
Size (in Bytes) 1.20 MB
Page Count 9
Starting Page 1964
Ending Page 1972

Source: IEEE Xplore Digital Library