Title :
A Method of Adjusting Wavelengths of Distributed Feedback Laser Arrays by Injection Current Tuning
Author :
Hou, Jie ; Chen, Xiangfei ; Wang, Lixian ; Chen, Wei ; Zhu, Ninghua
Author_Institution :
State Key Lab. on Integrated Optoelectron., Inst. of Semicond., Beijing, China
Abstract :
The relation between the output wavelengths of a laser array and the injection currents of all the channels is experimentally investigated and is found to be approximately linear. Based on this, the authors propose an optimization method of adjusting the wavelength distribution of the laser array by tuning the injection currents. In the proof-of-concept experiment, the linear wavelength residual is significantly reduced.
Keywords :
distributed feedback lasers; laser tuning; semiconductor laser arrays; distributed feedback laser arrays; injection current tuning; laser output wavelengths; linear wavelength residual; optimization method; wavelength distribution; Distributed feedback devices; Equations; Laser feedback; Laser tuning; Semiconductor laser arrays; DFB laser array; Laser array; thermal crosstalk; wavelength distribution;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2012.2228183
