All-fiber source of 100-nJ subpicosecond pulses

Details All-fiber source of 100-nJ subpicosecond pulses All-fiber source of 100-nJ subpicosecond pulses

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apphl..64.1315f&link_type=abstract

Applied Physics Letters (ISSN 0003-6951), vol. 64, no. 11, p. 1315-1317

Physics

Optics

7

Amplification, Group Velocity, High Power Lasers, Laser Materials, Lasers, Nonlinear Optics, Optical Fibers, Oscillators, Pulsed Lasers, Spontaneous Emission, Velocity Distribution, Gratings (Spectra), Laser Mode Locking, Optical Measurement, Polarization (Waves), Raman Spectra, Semiconductor Lasers, Telescopes

Scientific paper

An erbium fiber laser of subpicosecond pulse generation with a power level of 100 nJ is presented. A high power stretched-pulse passively mode-locked erbium oscillator and two amplification stages were utilized through nonlinear polarization evolution acting as the passive mode locking mechanism and light rejected from the polarizer. The two amplification stages were inserted with an acoustooptic time gate to stop the amplified spontaneous emission. Stretched pulse recompression was achieved by a grating pair construction. Incorporation of the telescope into the grating pair produced a positive group velocity dispersion in the laser. Chirped pulse amplification and short amplifier lengths was utilized to minimize the fiber nonlinearities in this all fiber system.

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