| Presentation | 2022-10-20 Theoretical and Experimental Investigation of Frequency Chirp Induced by Inter-Arm Imbalance in Mach-Zehnder Silicon Optical Modulators Tadashi Murao, Jun Ushida, Hiroyuki Takahashi, Masatoshi Tokushima, Akemi Shiina, Tsuyoshi Horikawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Characteristic variations caused by nonuniformities in the fabrication process are inevitable in carrier-depletion Mach?Zehnder (MZ) silicon optical modulators. However, it is unknown how inter-arm imbalance in phase shifters that have a voltage dependence impacts device performance with respect to the chirp parameter in a push-pull manner. First, a generalized form of the large-signal modulation efficiency is used to characterize the inter-arm imbalance. We also propose an evaluation methodology that enables us to measure the absorption losses in each arm separately. A generalized form of the chirp parameter is formulated and quantified by using the proposed ME and evaluation methodology of the absorption loss, which suitably distinguishes its sources between the nonlinearities in modulation efficiency and absorption loss and their inter-arm imbalance. The impact of inter-arm imbalance on the chirp parameter is evaluated on a 300-mm SOI wafer. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wafer-level testing / Silicon modulator / Modulation efficiency / Optical modulation amplitude / chirp |
| Paper # | OCS2022-22,OPE2022-68,LQE2022-31 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | OPE / OCS / LQE |
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| Conference Date | 2022/10/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toshikazu Hashimoto(NTT) / Takeshi Hoshida(Fujitsu) / Junichi Takahara(Osaka Univ.) |
| Vice Chair | Taro Arakawa(Yokohama National Univ.) / / Kosuke Nishimura(KDDI Research) |
| Secretary | Taro Arakawa(Kochi Univ. of Tech) / (Mitsubishi Electric) / Kosuke Nishimura(NTT) |
| Assistant | Yuhei Ishizaka(Kanto Gakuin Univ.) / Takeshi Umeki(NTT) / / Yoshiaki Nishijima(Yokohama National Univ.) / Nobuhiko Nishiyama(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on OptoElectronics / Technical Committee on Optical Communication Systems / Technical Committee on Lasers and Quantum Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical and Experimental Investigation of Frequency Chirp Induced by Inter-Arm Imbalance in Mach-Zehnder Silicon Optical Modulators |
| Sub Title (in English) | |
| Keyword(1) | Wafer-level testing |
| Keyword(2) | Silicon modulator |
| Keyword(3) | Modulation efficiency |
| Keyword(4) | Optical modulation amplitude |
| Keyword(5) | chirp |
| 1st Author's Name | Tadashi Murao |
| 1st Author's Affiliation | Photonics Electronics Technology Research Association(PETRA) |
| 2nd Author's Name | Jun Ushida |
| 2nd Author's Affiliation | Photonics Electronics Technology Research Association(PETRA) |
| 3rd Author's Name | Hiroyuki Takahashi |
| 3rd Author's Affiliation | Photonics Electronics Technology Research Association(PETRA) |
| 4th Author's Name | Masatoshi Tokushima |
| 4th Author's Affiliation | Photonics Electronics Technology Research Association(PETRA) |
| 5th Author's Name | Akemi Shiina |
| 5th Author's Affiliation | Photonics Electronics Technology Research Association(PETRA) |
| 6th Author's Name | Tsuyoshi Horikawa |
| 6th Author's Affiliation | Photonics Electronics Technology Research Association(PETRA) |
| Date | 2022-10-20 |
| Paper # | OCS2022-22,OPE2022-68,LQE2022-31 |
| Volume (vol) | vol.122 |
| Number (no) | OCS-216,OPE-217,LQE-218 |
| Page | pp.pp.28-33(OCS), pp.28-33(OPE), pp.28-33(LQE), |
| #Pages | 6 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |