Title :
Transformation of femtosecond Ti:S laser pulses by a tapered fibers
Author :
Bagayev, S.N. ; Denisov, V.I. ; Klementyev, V.M. ; Korel, I.I. ; Kuznetsov, S.A. ; Pivtsov, V.S. ; Zakharyash, V.F.
Author_Institution :
Inst. of Laser Phys., Siberian Branch of Russian Acad. of Sci., Novosibirsk
Abstract :
The method of the experiment consisted in the measurement of the stability of the intermode frequency of the Ti:S laser (100 MHz) at the input and output of the fiber. Besides, two spectral areas of output radiation were extracted with the help of light filters, and the stability of intermode beats in extracted spectral regions was measured. To make these high-precision measurements, we developed and created a device. This device is based on the following principle. The intermode frequency is transferred by transformation into the low-frequency region, and then high-precision measurements of the chosen frequency (200 Hz) are made. It is noted that at the passage of a sequence of highly stable femtosecond pulses through a tapered fiber in the process of nonlinear transformation of modes, there is some decrease in the intermode frequency stability
Keywords :
high-speed optical techniques; laser frequency stability; optical fibres; optical filters; solid lasers; sulphur; titanium; 100 MHz; 200 Hz; Ti:S; femtosecond Ti:S laser pulse transformation; intermode frequency stability; light filters; spectral areas; tapered fiber; Clocks; Fiber lasers; Filters; Frequency measurement; Laser beam cutting; Laser modes; Laser stability; Laser theory; Optical pulses; Physics;
Conference_Titel :
Advanced Optoelectronics and Lasers, 2003. Proceedings of CAOL 2003. First International Conference on
Conference_Location :
Alushta, Crimea
Print_ISBN :
0-7803-7948-9
DOI :
10.1109/CAOL.2003.1251271
