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| Content Provider | IET Digital Library |
|---|---|
| Author | Enokihara, A. Kawamura, K. Nakao, T. Yamamoto, K. Kawai, T. Kawanishi, T. |
| Abstract | Optical single-sideband (SSB) modulation is theoretically realised by applying two modulation signals with a 90° phase difference to the dual-electrode type electro-optic (EO) modulator. A branch-line coupler (BC) as the microwave 90° hybrid was directly prepared on the EO modulator substrate, LiNbO3, to create two modulation signals from a single input signal. Output ports of the BC were connected to the modulation electrodes on the substrate. Thereby, an EO optical SSB modulator was realised with a single-tip and a small-sized configuration. The SSB modulator was designed and fabricated for around 10 GHz modulation frequency and 1550 nm light wavelength. The optical SSB modulation operation with a sideband suppression ratio of more than 20 dB was confirmed by the experiment. |
| Starting Page | 1237 |
| Ending Page | 1238 |
| Page Count | 2 |
| ISSN | 00135194 |
| Volume Number | 49 |
| e-ISSN | 1350911X |
| Issue Number | Issue 19, Sep (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/49/19 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2013.1533 |
| Journal | Electronics Letters |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | 90° Phase Difference Branch-line Coupler Couplers Dual-electrode Type Electro-optic Modulator Electro optical Device Electro-optic SSB Modulator Electro-optical Modulation EO Modulator Substrate Frequency 10 GHz Integrated Optics Light Wavelength LiNbO3 LiNbO3 Substrate Microwave 90° Hybrid Microwave Photonics Modulation Electrodes Modulation Frequency Modulation Signal Optical Beam Modulators Optical Couplers Optical Design Technique Optical Fabrication Optical Single-sideband Modulation Optical System Design Optical Waveguide Output Ports Sideband Suppression Ratio Single Input Signal Small-sized Configuration Surface Grinding Wavelength 1550 Nm |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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