Title :
A Compact EADFB Laser Array Module for a Future 100-Gb/s Ethernet Transceiver
Author :
Kanazawa, Shigeru ; Fujisawa, Takeshi ; Ohki, Akira ; Ishii, Hiroyuki ; Nunoya, Nobuhiro ; Kawaguchi, Yoshihiro ; Fujiwara, Naoki ; Takahata, Kiyoto ; Iga, Ryuzo ; Kano, Fumiyoshi ; Oohashi, Hiromi
Author_Institution :
Nippon Telegraph & Telephone (NTT) Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
A compact electroabsorption modulators integrated distributed feedback (EADFB) laser array module has been developed for 100-Gb/s Ethernet. Four 25-Gb/s EADFB lasers and an optical multiplexer are monolithically integrated on one chip in an area of only 2 mm × 2.6 mm. As a result, a compact 12 mm × 20 mm EADFB laser array module is achieved. A bridge-type RF circuit board is employed to transmit high-frequency, 4 × 25-Gb/s, electrical signals effectively in a narrow package and improve the electrical/optical response of the module. The module has a 3-dB frequency bandwidth of 20 GHz for the four lanes assigned in 100-Gb/s Ethernet. Furthermore, the possibility of realizing low-driving voltage operation is investigated to reduce the power consumption of the module. An error-free transmission through 10 km of single-mode fiber at 100 Gb/s with a modulation voltage of only 1 V is demonstrated.
Keywords :
distributed feedback lasers; electro-optical modulation; electroabsorption; electronics packaging; integrated optoelectronics; laser arrays; light transmission; local area networks; multiplexing equipment; optical fibre communication; optical transceivers; power consumption; quantum well lasers; Ethernet transceiver; bandwidth 20 GHz; bit rate 100 Gbit/s; bit rate 25 Gbit/s; bridge-type RF circuit board; compact EADFB laser array module; compact electroabsorption modulators; electrical signals; electrical-optical response; error-free transmission; frequency bandwidth; integrated distributed feedback laser; low-driving voltage operation; monolithic integration; optical multiplexer; power consumption; single-mode fiber; voltage 1 V; Arrays; Bonding; Lasers; Modulation; Optical transmitters; Radio frequency; Wires; 100-Gb Ethernet; Distributed feedback laser; EADFB laser array; InGaAlAs; electro-absorption modulator; photonic-integrated circuits;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2011.2124446
