Title :
Linewidth Calibration of SG-DBR Lasers
Author :
Shi, Kai ; Reid, Douglas A. ; Barry, Liam P. ; Yu, Yonglin ; Smyth, Frank
Author_Institution :
Res. Inst. for Networks & Commun. Eng. (RINCE), Dublin City Univ., Dublin, Ireland
Abstract :
We propose a simple and quick linewidth calibration method for tunable sampled grating distributed Bragg reflector lasers. Only the voltage across the gain section is measured, which allows the operation point with either highest sidemode suppression ratio (SMSR) or lowest linewidth to be selected. The technique results in a linewidth reduction of up to 80% when compared to techniques that only calibrate for SMSR and output power.
Keywords :
calibration; diffraction gratings; distributed Bragg reflector lasers; laser modes; laser tuning; spectral line narrowing; SMSR; linewidth calibration; longitudinal modes; sampled grating distributed Bragg reflector lasers; sidemode suppression ratio; tunable laser; Calibration; Distributed Bragg reflectors; Gratings; Laser modes; Laser tuning; Measurement by laser beam; Calibration; linewidth; sampled grating distributed Bragg reflector (SG-DBR); tunable laser;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2081665
