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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Kawanishi, T. Sakamoto, T. Chiba, A. Kanno, A. |
| Copyright Year | 2010 |
| Description | Author affiliation: National Institute of Information and Communications Technology, Koganei, Tokyo 184-8795, Japan (Kawanishi, T.; Sakamoto, T.; Chiba, A.; Kanno, A.) |
| Abstract | We present lightwave modulation techniques for high-speed signal generation in digital and analogue applications. Advanced modulation formats, such as differential quadrature phase-shift-keying, amplitude- and phase-shift-keying, quadrature-amplitude-modulation etc, were investigated to obtain enhanced spectral efficiency, where Mach-Zehnder modulators (MZMs) are commonly used to control optical amplitude or phase in lightwave signals. In this presentation, we describe lightwave modulation techniques for high-speed signal generation based on integrated MZMs. By using quad-parallel MZM, high-speed optical 16-QAM signals can be synthesized, where the baud rate and bit rate were 12.5 Gbaud and 50 Gb/s. Impact of extinction-ratio (ER) of MZMs on advanced modulation formats is also discussed. Imbalance in the MZMs due to fabrication error can be compensated by using a dual-parallel MZM. ER can be higher than 70 dB. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 324779 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424477999 |
| e-ISBN | 9781424477982 |
| e-ISBN | 9781424477975 |
| DOI | 10.1109/ICTON.2010.5549077 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-06-27 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | High speed optical techniques Optical modulation Signal generators Phase shift keying Optical control Erbium Digital modulation Lighting control Signal synthesis Bit rate waveguide device Modulation high-speed transmission |
| Content Type | Text |
| Resource Type | Article |
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