Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2007-05-29
2007-05-29
Keith, Jack (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
C398S071000, C372S050220
Reexamination Certificate
active
10798662
ABSTRACT:
A multi-wavelength light source includes a substrate, a fabry-perot laser laminated on the substrate that is operated by driving current below a predetermined threshold current to generate multi-wavelength light including a plurality of peaks whose wavelengths and spacing are identical to these of WDM channels. A semiconductor optical amplifier (SOA) is laminated on the substrate in an arrangement such that a slant surface of the SOA is opposed to a side surface of the fabry-perot laser, which serves to thereby amplify the multi-wavelength light output from the fabry-perot laser. The semiconductor optical amplifier is driven in a gain saturation state to reduce the relative intensity of noise in the channels of the multi-wavelength light that are simultaneously amplified.
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Hwang Seong-Taek
Jung Dae-Kwang
Lee Jeong-Seok
Shin Hyun-Cheol
Cha & Reiter LLC
Diacou Ari M
Keith Jack
Samsung Electronics Co,. Ltd.
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