Short-wavelength lasers
Article Abstract:
Scientists have attempted to shorten the wavelength of lasers since their introduction in 1960, but true X-ray laser wavelengths of 0.1 nm or less are not yet a reality. The molecular fluorine laser's 157 nm wavelength is one of the shortest commercially available. Soft X-ray or extreme-ultraviolet (XUV) lasers with 3 nm wavelengths have been demonstrated in laboratories. The recent development of short-wavelength lasers is reviewed and three pumping mechanisms are demonstrated that are capable of producing lasing at wavelengths from 3 to 100 nm. These mechanisms include electron-icon recombination, phot-excitation and electron-collisional excitation. Future directions in short-wavelength laser development are discussed.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Recent advances in long-wavelength semiconductor lasers for optical fiber communication
Article Abstract:
A review of progress in long wavelength semiconductor lasers based on the InGaAsP/InP system is presented. The trends will continue as designers tap into the vast bandwidth capabilities of single-mode fibers in an effort to realize broad-band networks; new technology will be needed. Linear laser arrays, two-dimensional laser arrays and other types of semiconductor lasers will become more important to future systems. The key material system for such devices will undoubtedly be the multiple quantum well structures (MQW) material system. New advances in opto-electronic integrated circuits will be provided by heteroepitaxy with the capability to integrate silicon electronics and GaAs and/or InP photonics.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1991
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Wavelength Domain Optical Network Techniques
Article Abstract:
Optical fiber technology has progressed quickly in the last decade. The development of single-mode lasers and low-loss fiber have made deployment of high-capacity systems over ranges in excess of 100 km possible. The need to replace copper cables in local area networks is the main force behind multiterminal optical systems. The first systems are expected to be those that use the optical path only for transmission. Future systems will probably include an optical switching capability.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1990
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