Spectral linewidth analysis of semiconductor hybrid lasers with feedback from an external waveguide resonator circuit

被引：15
作者：
Fan, Youwen [1 ]
Lammerink, Rob E. M. [1 ]
Mak, Jesse [1 ]
Oldenbeuving, Ruud M. [2 ]
van der Slot, Peter J. M. [1 ]
Boller, Klaus-J. [1 ]
机构：
[1] Univ Twente, Laser Phys & Nonlinear Opt Grp, Fac Sci & Technol, MESA Inst Nanotechnol, POB 217, NL-7500 AE Enschede, Netherlands
[2] LioniX Int BV, POB 456, NL-7500 AL Enschede, Netherlands
来源：
OPTICS EXPRESS | 2017年 / 25卷 / 26期
关键词：
WAVELENGTH-TUNABLE LASER; QUANTUM-WELL LASERS; NOISE; MODEL; INDEX;
D O I：
10.1364/OE.25.032767
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a detailed analysis of a semiconductor hybrid laser exploiting spectral control from an external photonic waveguide circuit that provides frequency-selective feedback. Based on a spatially resolved transmission line model (TLM), we have investigated the output power, emission frequency, and the laser spectral linewidth. We find that, if the feedback becomes weaker, the spectral linewidth is larger than predicted by previous models that are based on a modified mean-field approximation, even if these take a strong spatial variation of the gain into account. The observed excess linewidth is caused by additional index fluctuations that are associated with strong spatial gain variations. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：32767 / 32782
页数：16
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