| Presentation | 2014-12-18 Silicon Photonic Wavelength Tunable Laser with Highly Asymmetric Mach-Zehnder Interferometer Rui Tang, Tomohiro Kita, Hirohito Yamada, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Utilizing tunable silicon ring resonator filter as an external resonator, the wavelength tunable laser has demonstrated excellent wavelength tunability and less than 100 kHz narrow spectral linewidth, thus is promising to be applied to digital coherent optical communication systems. In order to apply to higher-order modulation formats, further narrower spectral linewidth is desired. However, with the previous filter structure, because of the trade-off relationship between spectral linewidth and gain difference of longitudinal modes, it is difficult to obtain both narrower spectral linewidth and stable single mode oscillation. In this paper, we demonstrate that by utilizing a highly asymmetric Mach-Zehnder interferometer which has a very long optical delay line, the newly designed filter can have both long cavity length and large longitudinal mode gain difference. From our experimental results, 49 dB high side mode suppression ratio(SMSR) and about 12 kHz narrow spectral linewidth were confirmed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Silicon photonic wire waveguide / Ring resonator / Tunable laser diode / Longitudinal mode |
| Paper # | OPE2014-140,LQE2014-127 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2014/12/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Silicon Photonic Wavelength Tunable Laser with Highly Asymmetric Mach-Zehnder Interferometer |
| Sub Title (in English) | |
| Keyword(1) | Silicon photonic wire waveguide |
| Keyword(2) | Ring resonator |
| Keyword(3) | Tunable laser diode |
| Keyword(4) | Longitudinal mode |
| 1st Author's Name | Rui Tang |
| 1st Author's Affiliation | Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Tomohiro Kita |
| 2nd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Hirohito Yamada |
| 3rd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| Date | 2014-12-18 |
| Paper # | OPE2014-140,LQE2014-127 |
| Volume (vol) | vol.114 |
| Number (no) | 378 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |