| Presentation | 2015-01-29 Evaluation of wavelength-chirp of Mach-Zehnder electro-optic modulators and investigation of zero-chirp modulation Masashi YAMAMOTO, Tadashi KAWAI, Akira ENOKIHARA, Tetsuya KAWANISHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Wavelength-chirp of electro-optic intensity modulators was investigated for zero-chirp modulation. The imbalance in light power splitting ratio between two arms of Mach-Zehnder (MZ) interferometer was found to strongly affect the chirp property. Thereby, we considered a dual-electrode MZ modulator with a microwave rat-race (RR) circuit for the low-chirp modulation. And the electrode for adjusting the light power splitting ratio between two arms of MZ interferometer was prepared on the same substrate to eliminate the residual chirp. The modulator was designed and fabricated on a single LN substrate for around 10 GHz modulation frequencies and 1550 nm light wavelength. The chirp parameter of the modulator was measured to be about 0.08 at 10 GHz. The chirp was reduced to around zero by compensating imbalance of the light power splitting in the waveguide MZ interferometer. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Chirp parameter / Electro-optic modulators / Rat-race circuit / LiNbO_3 |
| Paper # | PN2014-43,OPE2014-168,LQE2014-155,EST2014-97,MWP2014-65 |
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| Conference Information | |
| Committee | EST |
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| Conference Date | 2015/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electronic Simulation Technology (EST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of wavelength-chirp of Mach-Zehnder electro-optic modulators and investigation of zero-chirp modulation |
| Sub Title (in English) | |
| Keyword(1) | Chirp parameter |
| Keyword(2) | Electro-optic modulators |
| Keyword(3) | Rat-race circuit |
| Keyword(4) | LiNbO_3 |
| 1st Author's Name | Masashi YAMAMOTO |
| 1st Author's Affiliation | Graduate School of Engineering, University of Hyogo() |
| 2nd Author's Name | Tadashi KAWAI |
| 2nd Author's Affiliation | Graduate School of Engineering, University of Hyogo |
| 3rd Author's Name | Akira ENOKIHARA |
| 3rd Author's Affiliation | Graduate School of Engineering, University of Hyogo |
| 4th Author's Name | Tetsuya KAWANISHI |
| 4th Author's Affiliation | National Institute of Information and Communications Technology |
| Date | 2015-01-29 |
| Paper # | PN2014-43,OPE2014-168,LQE2014-155,EST2014-97,MWP2014-65 |
| Volume (vol) | vol.114 |
| Number (no) | 433 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |