Abstract
This paper demonstrates bandwidth requirement for optical DPQSK transmitter using one Dual-drive Mach Zehnder Modulator (DDMZM) for 100Gb/s physical transmission. The result shows that at receiver bandwidth of 40GHz, NRZ-DQPSK signal requires 60GHz modulation bandwidth at least, while RZ-DQPSK scheme demands less bandwidth, about 40GHz for 50% duty cycle RZ-DQPSK signal.
Original language | English |
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Article number | 71361M |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 7136 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |
Event | Optical Transmission, Switching, and Subsystems VI - Hangzhou, China Duration: 27 Oct 2008 → 30 Oct 2008 |
Keywords
- Differential quadrature phase-shift keying (DQPSK)
- Dual-drive Mach Zehnder modulator (DDMZM)
- Modulation bandwidth