Abstract
In this letter, we have developed a tandem electroabsorption modulator with an integrated semiconductor optical amplifier that is capable of both nonreturn-to-zero and return-to-zero (RZ) data transmission at 40 Gb/s. The tandem modulator consists of a broad-band data encoder and a narrow-band pulse carver. The pulse carver is able to produce 5-ps pulses with more than 20 dB of extinction. The on-chip semiconductor optical amplifier provides up to 8.5 dB of fiber-to-fiber gain and enables the modulator to be operated with zero insertion loss. Devices have been realized with greater than 40-GHz bandwidth, and 13-dB dynamic extinction for a 2.5-V swing. For optimized designs bandwidths of nearly 60 GHz have been realized. Using these devices penalty free RZ data transmission over a 100-km dispersion compensated fiber link has been demonstrated with a received power sensitivity of -29 dBm.
Original language | English (US) |
---|---|
Pages (from-to) | 27-29 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 14 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2002 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
Keywords
- Electroabsorption modulators
- Semiconductor optical amplifiers