Andere Kunden interessierten sich auch für
![Raman Fiber Lasers and Amplifiers Based on Multimode Graded-Index Fibers and Their Application to Beam Cleanup]( "Raman Fiber Lasers and Amplifiers Based on Multimode Graded-Index Fibers and Their Application to Beam Cleanup")
Raman Fiber Lasers and Amplifiers Based on Multimode Graded-Index Fibers and Their Application to Beam Cleanup63,99 €![Backward Amplification and Beam Cleanup of a Raman Fiber Laser Oscillator Using a Multi-Mode Graded Index Fiber Amplifier]( "Backward Amplification and Beam Cleanup of a Raman Fiber Laser Oscillator Using a Multi-Mode Graded Index Fiber Amplifier")
Backward Amplification and Beam Cleanup of a Raman Fiber Laser Oscillator Using a Multi-Mode Graded Index Fiber Amplifier63,99 €![Single-Mode Raman Fiber Laser in a Multimode Fiber]( "Single-Mode Raman Fiber Laser in a Multimode Fiber")
Single-Mode Raman Fiber Laser in a Multimode Fiber62,99 €![Development of a Multiple Beam Combiner Using Stimulated Raman Scattering in Multimode Fiber]( "Development of a Multiple Beam Combiner Using Stimulated Raman Scattering in Multimode Fiber")
Development of a Multiple Beam Combiner Using Stimulated Raman Scattering in Multimode Fiber63,99 €![Portable Diode Pumped Femtosecond Lasers]( "Portable Diode Pumped Femtosecond Lasers")
Portable Diode Pumped Femtosecond Lasers64,99 €![Theoretical Model Analysis of Absorption of a Three Level Diode Pumped Alkali Laser]( "Theoretical Model Analysis of Absorption of a Three Level Diode Pumped Alkali Laser")
Theoretical Model Analysis of Absorption of a Three Level Diode Pumped Alkali Laser63,99 €![Simulation of a Diode Pumped Alkali Laser: A Three Level Numerical Approach]( "Simulation of a Diode Pumped Alkali Laser: A Three Level Numerical Approach")
Simulation of a Diode Pumped Alkali Laser: A Three Level Numerical Approach63,99 €
The direct pumping of a Raman number amplifer (RFA) was attempted using an array of four 25W, number pigtailed diodes at 936nm, combined via a 7 channel number beam combiner. The initial attempt was conducted using a 1.8 km, 100 um core, GRIN number with an NA of .29 and attenuation 3.6 dB/km at 936nm. While amplification was not achieved, over 200mW of conversion was shown, with 10.4W of pump power and 3.5W of seed. This corresponds to an average conversion e ciency of 2.2%. The subsequent effort utilized a 2km long, 200um core, GRIN number, with NA of .27 and attenuation of 2.8dB/km at pump wavelength. Again, amplification was not achieved, but a gain of 80mW was present, with 3.5W of seed power and 14W of pump. This corresponds to an average conversion e ciency of 0.6% and only 2.5% of the coupled seed power. The final experiment attempted to solve the problem of coupling e ciency and high Raman threshold by utilizing a 50/250 dual- clad number, with NAs of .28 and .46 for the core and inner cladding, respectively. Again, amplification was not realized, as only 100mW of gain was present, with 25W of pump and 4.2W of coupled seed power, corresponding to 36% of the coupled seed, and an average conversion efficiency of only 0.4%. Although amplification was not achieved for any of the three numbers, gain was shown possible in all, showing that directly pumping an RFA with a diode source is possible.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.
Hinweis: Dieser Artikel kann nur an eine deutsche Lieferadresse ausgeliefert werden.