Title :
Tuning range and threshold current of the tunable twin-guide (TTG) laser
Author :
Amann, M.-C. ; Illek, S. ; Schanen, C. ; Thulke, W.
Author_Institution :
Siemens AG, Munich, West Germany
Abstract :
The tuning range and threshold current of the tunable twin-guide (TTG) laser are calculated as a function of the relevant device parameters. It is shown that a maximum continuous tuning range up to 6-7 nm and low threshold currents around 25 mA can be expected with adequately designed 2 mu m wide and 400 mu m long 1.56 mu m TTG lasers. A comparison of the calculations to published experimental results shows fair agreement.<>
Keywords :
laser tuning; lasers; semiconductor junction lasers; 1.56 micron; 2 micron; 25 mA; 400 micron; continuous tuning range; relevant device parameters; threshold current; tunable twin-guide laser; Distributed feedback devices; Laser modes; Laser tuning; Optical losses; Optical refraction; Optical tuning; Optical variables control; Refractive index; Threshold current; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
