introduction: the use of lasers for treatment has become a common phenomenon in the medical field. currently, numerous laser systems are available for dental use. the use of lasers for periodontal treatment becomes more complicated because the periodontium consists of both hard and soft tissues. methods: related articles were gathered and selected carefully and reviewed. among the many lasers a...

The fiber laser concept is proven technology for telecom applications where its single mode performance and reliability is essential. Newer generation diode-pumped fiber lasers are using pump diodes especially developed for telecom applications and therefore offer excellent controllability of the laser pulse length and pulse frequency. In recent years the output power of fiber lasers has increa...

We have built a high-accuracy wavelength meter for tunable lasers using a scanning Michelson interferometer and a reference laser of known wavelength. The reference laser is a frequency stabilized diode laser locked to an atomic transition in Rb. The wavemeter has a statistical error per measurement of 5 parts in 10 which can be reduced considerably by averaging. Using a second stabilized diode...

Manufacturing processes, such as cutting, drilling, soldering, marking, forming 3Dsintered parts from metal powders and laser vapor deposition, are now well established practices using matured high power lasers like Nd:YAG, C02 and Excimer lasers(l). These lasers are bulky, inefficient and expensive. Semiconductor diode lasers, if wavelength is not a disadvantage, hold the potential of creating...

The current status of III-V tunable diode lasers (TDLs) emitting between 1 -5pm wavelengths for spectroscopy and chemical analysis is described. Single mode distributed feedback (DFB) strained layer lnGaAs(P) lasers grown on lnP substrates with emission wavelength from 1.2 to 2.06 pm have been developed at JPL. DFB ridge waveguide lasers at 2,06pm have operated continuous wave (CW) up to 50°C w...

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