tailieunhanh - Advances in Optical and Photonic Devices 2011 Part 4

Tham khảo tài liệu 'advances in optical and photonic devices 2011 part 4', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 66 Advances in Optical and Photonic Devices Shimizu H. Nakano Y. 2006 Proceeding of 2006 International Semiconductor Laser Conference Sep. 2006 TuA6. Shimizu H. Nakano Y. 2007 IEEE. Photon. Tech. Lett. Vol. 19 No. 24 Dec. 2007 19731975. 5 Optical Injection-Locking of VCSELs Ahmad Hayat Alexandre Bacou Angélique Rissons and Jean-Claude Mollier Institut Supérieur de l Aeronautique et de 1 Espace ISAE Toulouse France 1. Introduction Since the telecommunication revolution in the early 90s that saw massive deployment of optical fibre for high bit rate communications coherent optical sources have made tremendous technological advances. The technological improvement has been multi dimensional component sizes have been reduced conversion efficiencies increased power consumptions decreased and integrability into compact optoelectronic sub-modules improved. Semiconductor lasers emitting in the pm range have been the most prominent beneficiaries of these technological advances. This progress is a result of research efforts that consistently came up with innovative solutions and components to meet the market demand. This in-phase demand and supply problem and solution and consumer need and innovation cycle has ushered us in to the present information technology era where stable high speed data links make the backbone of almost every aspect of life from economy to entertainment and from health sector to defence production. By the start of twenty-first century a new low cost low power consumption and miniaturized generation of lasers had started to capture its own market share. These lasers named Vertical-Cavity Surface-Emitting Lasers VCSELs due to the presence of an optical cavity which is normal to the fabrication plane have established themselves as premier optical sources in short-haul communications such as Gigabit Ethernet in optical computing architectures and in optical sensors. While shorter wavelength VCSEL 1pm fabrication technology was readily mastered due .