DocumentCode :
1778353
Title :
Development of lumped constant type LN optical modulators operating at 10GHz band
Author :
Toba, Yoshikazu ; Haeiwa, Kazuhisa ; Kamio, Takeshi ; Fujisaka, Hisato
Author_Institution :
SEIKOH GIKEN Co., Ltd., Matsudo, Japan
fYear :
2014
fDate :
20-23 Oct. 2014
Firstpage :
135
Lastpage :
138
Abstract :
In order to create a lumped-constant LN (LiNbO3) optical modulator that operates with high sensitivity in the 7-10 GHz band, it is necessary to ascertain the impact of the electrode pad capacitance, lead inductance, and other factors. An electromagnetic-field simulator has thus shown that the width of the LN crystal substrate is the main impediment to achieving high frequency and sensitivity; based on this result, we created four prototype 10-GHz band lumped-constant LN optical modulators, and evaluated their performance. As a result, we measured a resonant frequency of about 10.1GHz with an LN crystal substrate that was 1.4 mm wide and 0.3 mm thick, and achieved a 20dB CNR. This provided an optimistic outlook on the possibility of achieving a high-sensitivity LN optical modulator operating in the 10 GHz band, which is the highest allocated frequency range.
Keywords :
lithium compounds; optical communication equipment; optical materials; optical modulation; LN crystal substrate width; LiNbO3; electrode pad capacitance; electromagnetic-field simulator; frequency 10.1 GHz; frequency 7 GHz to 10 GHz; high-sensitivity LN optical modulator; lead inductance; noise figure 20 dB; prototype band lumped-constant LN optical modulators; resonant frequency; size 0.3 mm; size 1.4 mm; Electrodes; Optical modulation; Optical sensors; Prototypes; Resonant frequency; Substrates; 10GHz band LN optical modulator; C/N; Electro-magnetic field simulator; Lumped constant type; Resonant frequency;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Photonics (MWP) and the 2014 9th Asia-Pacific Microwave Photonics Conference (APMP), 2014 International Topical Meeting on
Conference_Location :
Sapporo
Type :
conf
DOI :
10.1109/MWP.2014.6994511
Filename :
6994511
Link To Document :
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