CLC number: TN929.11
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2010-08-31
Cited: 0
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Rui-xing Zeng, Lei Wang, Jian-jun He. Design and analysis of a mode-hop-free tunable laser based on etched diffraction grating[J]. Journal of Zhejiang University Science C, 2010, 11(10): 793-797.
@article{title="Design and analysis of a mode-hop-free tunable laser based on etched diffraction grating",
author="Rui-xing Zeng, Lei Wang, Jian-jun He",
journal="Journal of Zhejiang University Science C",
volume="11",
number="10",
pages="793-797",
year="2010",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.C0910622"
}
%0 Journal Article
%T Design and analysis of a mode-hop-free tunable laser based on etched diffraction grating
%A Rui-xing Zeng
%A Lei Wang
%A Jian-jun He
%J Journal of Zhejiang University SCIENCE C
%V 11
%N 10
%P 793-797
%@ 1869-1951
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C0910622
TY - JOUR
T1 - Design and analysis of a mode-hop-free tunable laser based on etched diffraction grating
A1 - Rui-xing Zeng
A1 - Lei Wang
A1 - Jian-jun He
J0 - Journal of Zhejiang University Science C
VL - 11
IS - 10
SP - 793
EP - 797
%@ 1869-1951
Y1 - 2010
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.C0910622
Abstract: A novel semiconductor laser which can achieve mode-hop-free tuning is proposed. The device consists of an etched diffraction grating (EDG) as a dispersive element to provide the mode selection function and an active waveguide to provide optical gain for the laser. The slab waveguide region of the EDG contains a tuning section covered by an electrode to inject a tuning current, and thus changes the refractive index. Mode-hop-free tuning is achieved by specially designing the shape of the tuning section, so that the tuning rate of the central wavelength reflected by the EDG and the tuning rate of the resonant wavelength of the laser cavity are equal. An optimized tuning section shape is designed to obtain the largest tuning range within a limited current range. Numerical simulation is presented to demonstrate the mode-hop-free tuning operation.
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