Title :
Very high-speed light-source module up to 40 Gb/s containing an MQW electroabsorption modulator integrated with a DFB laser
Author :
Takeuchi, Hiroaki ; Tsuzuki, Ken ; Sato, Kenji ; Yamamoto, Mitsuo ; Itaya, Yoshio ; Sano, Akihide ; Yoneyama, Mikio ; Otsuji, Taiichi
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
4/1/1997 12:00:00 AM
Abstract :
A very high-speed integrated light source up to 40 Gb/s has been developed. The InGaAsP MQW integrated light source consists of an multiple-quantum-well (MQW) electroabsorption (EA) modulator and a distributed-feedback (DFB) laser. After optimizing the structure of the integrated modulator, the device is packaged in a compact module with a single-mode fiber (SMF). While the DFB laser is injected with a constant current, the integrated MQW electroabsorption modulator is driven with a 40-Gb/s electrical NRZ signal. A clearly-open eye diagram is observed in the modulated light from the modulator. Further, a receiver sensitivity of -27.2 dBm at 10-9 is experimentally confirmed in bit-error-rate (BER) performance. Highly resolved optical short pulse is also generated at a repetition rate of 40 GHz using the new light-source module
Keywords :
III-V semiconductors; distributed feedback lasers; electro-optical modulation; electroabsorption; gallium arsenide; gallium compounds; high-speed optical techniques; indium compounds; integrated optics; modules; optical receivers; optical transmitters; quantum well lasers; semiconductor device packaging; semiconductor quantum wells; sensitivity; 40 Gbit/s; DFB laser; Gb/s electrical NRZ signal; InGaAsP; InGaAsP MQW integrated light source; MQW electroabsorption modulator; bit-error-rate; clearly-open eye diagram; constant current; distributed-feedback laser; highly resolved optical short pulse generation; modulated light; multiple-quantum-well; receiver sensitivity; very high-speed integrated light source; very high-speed light-source module; Fiber lasers; High speed integrated circuits; Light sources; Optical fiber devices; Optical modulation; Optical pulse generation; Optical receivers; Optical signal processing; Packaging; Quantum well devices;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.605676
