Intensity-modulated blue light generated by frequency doubling of wavelength-modulated high-power diode-laser radiation

Woll, Dirk; Tremont, Marc A.; Fuchs, Harry; Casel, Oliver; Wallenstein, Richard
April 2005
Applied Physics Letters;4/11/2005, Vol. 86 Issue 15, p151101
Academic Journal
A scheme for the generation of modulated blue laser radiation is demonstrated. The 923 nm radiation of a high-power diode-laser master-oscillator power-amplifier system is wavelength modulated within a range of 0.2 nm by modulating the injection current of the distributed feedback (DFB) diode oscillator. Single-pass frequency doubling of the generated radiation in periodically poled potassium titanyl phospate converts the wavelength modulation into an intensity modulation with a contrast ratio exceeding 700:1. The 3 dB modulation bandwidth of 35 kHz is limited by the speed of the wavelength tuning of the DFB oscillator.


Related Articles

  • Spatial and Emission Characteristics of Aluminum Laser Torch Plasma. Chuchman, M.; Suaibov, A.; Mesarosh, L. // High Temperature;Jun2011, Vol. 49 Issue 3, p452 

    The article presents a study on the emission and spatial characteristics of aluminum laser torch plasma. It states that an analysis of the optimal conditions and production methods of metal compounds contained in the periodic table's third group is important to understanding possible...

  • Laser-induced structural changes in fine-grained aluminum 1420 alloy. Kikin, P. Yu.; Pchelintsev, A. I.; Rusin, E. E.; Shcherbans', M. Yu. // Technical Physics Letters;Jan2006, Vol. 32 Issue 1, p1 

    Pulsed laser radiation can lead to an increase in the thermal stability of the structure of a finegrained aluminum alloy (1420 grade).

  • Rectification and intrinsic photocurrent of GaAs/Si photodiodes formed with pulsed-laser deposition at 1064 nm. Ullrich, B.; Erlacher, A. // Applied Physics Letters;10/10/2005, Vol. 87 Issue 15, p151115 

    With a rate of 1 nm per minute, thin-film p-GaAs has been deposited on n-Si with nanosecond laser pulses at 1064 nm. The samples revealed rectification with an uncommon power dependence on the forward bias. Furthermore, we noticed that the intrinsic photocurrent spectra sensitively depend on the...

  • Frequency chirp and pulse shape effects in self-modulated laser wakefield accelerators. Schroeder, C. B.; Esarey, E.; Geddes, C. G. R.; Tóth, Cs.; Shadwick, B. A.; van Tilborg, J.; Faure, J.; Leemans, W. P. // Physics of Plasmas;May2003, Vol. 10 Issue 5, p2039 

    The effect of asymmetric laser pulses on plasma wave excitation in a self-modulated laser wakefield accelerator is examined. Laser pulse shape and frequency chirp asymmetries, controlled experimentally in the laser system through a grating pair compressor, are shown to strongly enhance measured...

  • Automated measurement tool enhances beam consistency. Green, Lawrence // Laser Focus World;Mar2001, Vol. 37 Issue 3, p165 

    Focuses on automated measurement tools that enhance beam consistency. Three-dimensional measurements of beam focusability; Benefits of speed and automation.

  • Aneurisms in laser-driven blast waves. Stamper, J. A.; Ripin, B. H.; Peterkin, R. E.; Stellingwerf, R. F. // Physics of Fluids (00319171);Nov88, Vol. 31 Issue 11, p3353 

    When a short-pulse laser beam is focused onto a solid target in a few torr ambient gas, the expanding target plasma couples to the resulting ambient plasma. Dark-field shadowgrams show that a thin, nearly spherical blast front is produced. These shadowgrams also show that certain regions of the...

  • Modulational instabilities of upper-hybrid laser radiation in a strongly magnetized plasma. Salimullah, Md.; Liu, Y. G.; Haines, M. G. // Physics of Fluids (00319171);Jan85, Vol. 28 Issue 1, p248 

    A theoretical investigation is made of the modulational and filamentation instabilities of laser radiation at the upper-hybrid frequency in the presence of the self-generated magnetic field of the order of a few megagauss in a laser-produced plasma. The nonlinear Vlasov equation is solved to...

  • Editorial. Pegoraro, F. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Mar2010, Vol. 55 Issue 2, p249 

    The article discusses various topics featured within the issue including one on new experimental possibilities offered by relativistic laser generated plasmas, one on coherent electromagnetic structures and one on relativistic laser plasma interactions.

  • Laser-produced-plasma sources shine brighter. Marx, Bridget // Laser Focus World;Apr2003, Vol. 39 Issue 4, p34 

    Reports on the advantages of extreme-ultraviolet (EUV) sources based on laser-produced plasma (LPP). Use of laser radiation to heat a target to the optimum temperature required for efficient EUV production; Power scalability of EUV sources through the tuning of laser parameters; Factors that...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics