| Presentation | 2012-01-27 Absorption Balancing of Semiconductor Mach-Zehnder Modulator Keisuke Matsuda, Keita Mochizuki, Takashi Sugihara, Hiroshi Aruga, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Semiconductor Mach-Zehnder (MZ) Modulators generally use quantum-confined-Stark effect (QCSE) at the phase modulation waveguides. The QCSE causes light absorption corresponding to refractive index change. Because this relation is owing to Kramers-Kronig relation, the absorption is inevitable in phase modulation by semiconductor MZ modulators. Unbalance of the absorption change between two arms of MZ Modulator results in difference between output light intensities of different symbols and deterioration of the Q factor of the modulator. In this paper, we propose a novel method of balancing light absorption at two arms of a semiconductor MZ modulator, and confirmed it both theoretically and experimentally. It depressed the symbol intensity difference within 0.1dB and the Q factor was improved in 10Gbps differential-phase-shift-keying format by 1.4dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Compound Semiconductor / Mach-Zehnder Modulator / DPSK |
| Paper # | PN2011-79,OPE2011-195,LQE2011-181,EST2011-129,MWP2011-97 |
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| Conference Information | |
| Committee | MWP |
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| Conference Date | 2012/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Microwave and Millimeter-wave Photonics (MWP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Absorption Balancing of Semiconductor Mach-Zehnder Modulator |
| Sub Title (in English) | |
| Keyword(1) | Compound Semiconductor |
| Keyword(2) | Mach-Zehnder Modulator |
| Keyword(3) | DPSK |
| 1st Author's Name | Keisuke Matsuda |
| 1st Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation() |
| 2nd Author's Name | Keita Mochizuki |
| 2nd Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| 3rd Author's Name | Takashi Sugihara |
| 3rd Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| 4th Author's Name | Hiroshi Aruga |
| 4th Author's Affiliation | Information Technology R&D Center, Mitsubishi Electric Corporation |
| Date | 2012-01-27 |
| Paper # | PN2011-79,OPE2011-195,LQE2011-181,EST2011-129,MWP2011-97 |
| Volume (vol) | vol.111 |
| Number (no) | 416 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |