Abstract
The rat-race (RR) circuit, which operates as a 180-degree hybrid, with an asymmetric power split ratio was integrated with the dual electrode type electro-optic modulator on the same substrate. Thereby, frequency chirp modulation with a compact configuration was realized. The RR circuit was designed with 4.5 1 power split ratio on a z-cut LiNbO3 substrate. The operation of the modulator was confirmed by observing the output light spectra. Moreover, the chirp parameter was directly measured by using the chromic dispersion of the optical fiber, where the power penalty of detected modulation signals transmitted through optical fiber was observed as a function of the fiber distance. The chirp parameter of the modulated light at 10 GHz was confirmed to be 0.47 by the measurement.
| Original language | English |
|---|---|
| Title of host publication | 2016 IEEE MTT-S International Microwave Symposium, IMS 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Volume | 2016-August |
| ISBN (Electronic) | 9781509006984 |
| DOIs | |
| Publication status | Published - 2016 Aug 9 |
| Event | 2016 IEEE MTT-S International Microwave Symposium, IMS 2016 - San Francisco, United States Duration: 2016 May 22 → 2016 May 27 |
Other
| Other | 2016 IEEE MTT-S International Microwave Symposium, IMS 2016 |
|---|---|
| Country | United States |
| City | San Francisco |
| Period | 16/5/22 → 16/5/27 |
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Keywords
- Chirp modulation
- Electro-optic modulators
- Microwave circuits
- Microwave photonics
- Optical fiber dispersion
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Frequency chirp modulation by electro-optic modulator integrated with microwave rat-race circuit and measurement of chirp parameter by using optical fiber dispersion. / Nakamura, Ryota; Yamamoto, Katsuyuki; Kawai, Tadashi; Enokihara, Akira; Yamamoto, Naokatsu; Kawanishi, Tetsuya.
2016 IEEE MTT-S International Microwave Symposium, IMS 2016. Vol. 2016-August Institute of Electrical and Electronics Engineers Inc., 2016. 7539999.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Frequency chirp modulation by electro-optic modulator integrated with microwave rat-race circuit and measurement of chirp parameter by using optical fiber dispersion
AU - Nakamura, Ryota
AU - Yamamoto, Katsuyuki
AU - Kawai, Tadashi
AU - Enokihara, Akira
AU - Yamamoto, Naokatsu
AU - Kawanishi, Tetsuya
PY - 2016/8/9
Y1 - 2016/8/9
N2 - The rat-race (RR) circuit, which operates as a 180-degree hybrid, with an asymmetric power split ratio was integrated with the dual electrode type electro-optic modulator on the same substrate. Thereby, frequency chirp modulation with a compact configuration was realized. The RR circuit was designed with 4.5 1 power split ratio on a z-cut LiNbO3 substrate. The operation of the modulator was confirmed by observing the output light spectra. Moreover, the chirp parameter was directly measured by using the chromic dispersion of the optical fiber, where the power penalty of detected modulation signals transmitted through optical fiber was observed as a function of the fiber distance. The chirp parameter of the modulated light at 10 GHz was confirmed to be 0.47 by the measurement.
AB - The rat-race (RR) circuit, which operates as a 180-degree hybrid, with an asymmetric power split ratio was integrated with the dual electrode type electro-optic modulator on the same substrate. Thereby, frequency chirp modulation with a compact configuration was realized. The RR circuit was designed with 4.5 1 power split ratio on a z-cut LiNbO3 substrate. The operation of the modulator was confirmed by observing the output light spectra. Moreover, the chirp parameter was directly measured by using the chromic dispersion of the optical fiber, where the power penalty of detected modulation signals transmitted through optical fiber was observed as a function of the fiber distance. The chirp parameter of the modulated light at 10 GHz was confirmed to be 0.47 by the measurement.
KW - Chirp modulation
KW - Electro-optic modulators
KW - Microwave circuits
KW - Microwave photonics
KW - Optical fiber dispersion
UR - http://www.scopus.com/inward/record.url?scp=84985034348&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84985034348&partnerID=8YFLogxK
U2 - 10.1109/MWSYM.2016.7539999
DO - 10.1109/MWSYM.2016.7539999
M3 - Conference contribution
VL - 2016-August
BT - 2016 IEEE MTT-S International Microwave Symposium, IMS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -