Title :
Acceleration of gain recovery in semiconductor optical amplifiers by optical injection near transparency wavelength
Author :
Pleumeekers, Jacco L. ; Kauer, Matthias ; Dreyer, Kevin ; Burrus, Charles ; Dentai, Andrew G. ; Shunk, Steve ; Leuthold, Jürg ; Joyner, Charles H.
Author_Institution :
Lucent Technol. Bell Labs, Holmdel, NJ, USA
Abstract :
By using optical injection near the transparency wavelength of semiconductor optical amplifiers, we show experimentally that both the saturation output power and the gain recovery can be greatly improved. By injecting 80 mW of pump power, we observe a 3-dB increase in saturation output power. For 73 mW of pump power, we find a reduction in gain recovery time from over 200 ps down to below 40 ps, while maintaining 14 dB of fiber-to-fiber gain at 1555-nm wavelength.
Keywords :
optical pumping; optical transmitters; semiconductor device measurement; semiconductor optical amplifiers; transparency; 14 dB; 1555 nm; 200 ps; 40 ps; 73 mW; 80 mW; fiber-to-fiber gain; gain recovery; gain recovery acceleration; gain recovery time; optical injection; pump power; saturation output power; semiconductor optical amplifiers; transparency wavelength; Acceleration; Charge carrier lifetime; High speed optical techniques; Optical pumping; Optical saturation; Optical wavelength conversion; Power amplifiers; Power generation; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
