Tunable multi-wavelength quantum dot external-cavity lasers

Chen Hung Pai, Kuo-Jui Lin*

*此作品的通信作者

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

The chirped multilayer quantum-dot (QD) gain media are arranged in Fourier-transform external-cavity laser (FT-ECL) configuration. Novel slit designs select 2, 3, and 4 different wavelengths that are diffracted from the grating for optical feedback. Therefore, the dual-, triple- and quadruple-wavelength ECLs are demonstrated in this study. The resulted multi-wavelength lasing emissions are achieved under injected current of 100 mA (or 1.33 kA/cm2) with signal to amplified spontaneous emission (ASE) ratio over 20 dB. Around peak-gain wavelength of 12xx-nm range, the adjacent wavelength separation is over 50 nm for dual-wavelength lasing, up to 13 nm for triple-wavelength lasing, and about 4-5 nm for quadruple-wavelength lasing emissions. To further extend the wavelength separation for dual-wavelength lasing emissions, another modified scheme with two separate external mirrors are adopted and the achieved maximum value is about 126 nm in wavelength separation or over 25 THz in frequency difference. The terahertz (THz) generation by photomixing of dual-wavelength ECLs is also discussed in this study.

原文English
主出版物標題Nonlinear Optics and Applications VII
DOIs
出版狀態Published - 8 5月 2013
事件Nonlinear Optics and Applications VII - Prague, Czech Republic
持續時間: 15 4月 201317 4月 2013

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
8772
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

ConferenceNonlinear Optics and Applications VII
國家/地區Czech Republic
城市Prague
期間15/04/1317/04/13

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