Title :
40-wavelength rapidly digitally tunable laser
Author :
Doerr, C.R. ; Joyner, C.H. ; Stulz, L.W.
Author_Institution :
Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA
Abstract :
We present a tunable laser based on an N/sub 1//spl times/N/sub 2/ chirped waveguide grating router that has N/sub 1/N/sub 2/ wavelengths, accessible in a digitally rapid manner, and only N/sub 1/+N/sub 2/+1 semiconductor optical amplifiers. By using chirp, the free-spectral range of the router can be significantly less than the channel span. The version demonstrated here has N/sub 1/=5, N/sub 2/=8, a channel spacing of 100 GHz, and the router free-spectral range is only 20 channels.
Keywords :
laser tuning; optical transmitters; semiconductor optical amplifiers; telecommunication channels; telecommunication network routing; 40-wavelength rapidly digitally tunable laser; N/sub 1/+N/sub 2/+1 semiconductor optical amplifiers; N/sub 1//spl times/N/sub 2/ chirped waveguide grating router; channel spacing; digitally rapid manner; free-spectral range; router free-spectral range; Arrayed waveguide gratings; Channel spacing; Chirp; Magnetic flux leakage; Optical waveguides; Semiconductor laser arrays; Semiconductor optical amplifiers; Semiconductor waveguides; Tunable circuits and devices; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
