Title :
Application of spectral-hole burning in the inhomogeneously broadened gain of self-assembled quantum dots to a multiwavelength-channel nonlinear optical device
Author :
Akiyama, Tomoyuki ; Kuwatsuka, Haruhiko ; Simoyama, Takashi ; Nakata, Yoshiaki ; Mukai, Kohki ; Sugawara, Mitsuru ; Wada, Osamu ; Ishikawa, Hiroshi
Author_Institution :
Femtosecond Technol. Res. Assoc., Tsukuba, Japan
Abstract :
A nonlinear device capable of handling multiple wavelength channels simultaneously by using spectral-hole burning in the inhomogeneous broadening of the gain in self-assembled quantum dots is proposed. The multichannel property of this device stems from the localized absorption or gain change at the pump wavelength within the inhomogeneously broadened gain spectrum. The spectral width of the modulation and its time evolution was also evaluated. The result indicates the applicability of this device to multichannel operation.
Keywords :
optical hole burning; optical pumping; optical transmitters; quantum well lasers; self-assembly; semiconductor optical amplifiers; semiconductor quantum dots; wavelength division multiplexing; gain change; inhomogeneous gain broadening; inhomogeneously broadened gain; inhomogeneously broadened gain spectrum; localized absorption; multichannel operation; multichannel property; multiple wavelength channels; multiwavelength-channel nonlinear optical device; nonlinear device; pump wavelength; quantum dot lasers; self-assembled quantum dots; spectral width; spectral-hole burning; time evolution; Band pass filters; Optical filters; Optical modulation; Optical waveguides; Probes; Pulse modulation; Quantum dots; Semiconductor optical amplifiers; Ultrafast optics; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
