非線性積體雷射光學實驗室(NILP)

低調結婚！恭喜啦！

Our German friends at NILP lab

LBJ's wedding! :)

World’s First White Lasers | Optics & Photonics News Optics & Photonics News (OPN) is The Optical Society's monthly news magazine. It provides in-depth coverage of recent developments in the field of optics and offers busy professionals the tools they need to succeed in the optics industry, as well as informative pieces on a variety of topics such as…

春酒

專題演講

[講題]
Lithium niobate nanowires for applications in bio-imaging and integrated optics

[講師]
Reinhard Geiss
Institute of Applied Physics
Friedrich-Schiller-Universität Jena, Germany

[日期]
104年1月6日 (星期二) 下午一點

[地點]
國鼎光電大樓1F IL-113

中午十二點備有Pizza和飲料！

Happy wedding! :) @陳彥良

Congratulations! “Two-dimensional aperiodic nonlinear photonic crystal in a dual-wavelength Nd:YVO4 laser for pulsed orange generation” now is published on Optics Express. Authors are P. Y. Chou, W. K. Chang, H. P. Chung, and Y. H. Chen.

Abstract
We report the design and construction of a highly integrated two- dimensional (2D) aperiodic nonlinear photonic crystal (NPC) for working in a diode-pumped, dual-wavelength (1064 and 1342 nm) Nd:YVO4 laser to demonstrate a compact, high-peak-power intracavity sum-frequency generator (ISFG) radiating at orange 593.5 nm. The 2D aperiodic NPC was built in quasi-phase-matched LiNbO3 whose crystal domain was structured based on the aperiodic optical superlattice technique to best achieve its simultaneous performance of a dual-wavelength electro-optic Bragg Q- switch and a SFG in the Nd:YVO4 laser. When the NPC device was driven with a 350-V Q-switching voltage and a 1-kHz switching rate, we measured pulse energy of ~4.3 μJ (or peak power of ~531 W) at orange 593.5 nm from the constructed ISFG with 5.28-W diode power.

恭賀陳彥宏老師通過校教評會榮升等為教授!
Congratulations! Now please address him as PROFESSOR CHEN

國立中央大學光電科學與工程學系

恭喜NILP最近研究的題目"Tunable, pulsed multi-line intracavity optical parametric oscillator using two-dimensional MgO:PP-APPLN" 被OPTICS LETTERS所接受，並刊載在9/15的期刊上。
摘要.....
We report a tunable, pulsed multiline intracavity optical parametric oscillator (IOPO) realized in an Nd:YVO4 laser using a two-dimensionally domain engineered MgO:LiNbO3 as simultaneously an electro-optic Bragg Q switch and a multichannel optical parametric downconverter. The MgO:LiNbO3 was periodically and aperiodically poled along the crystallographic y and x axes, respectively, to simultaneously satisfy the phase-matching conditions required by the two quasi-phase-matching devices. When Q switched by 1 kHz, 300 V pulses, three signal lines at 1518, 1526, and 1534 nm were simultaneously generated, each with a peak power of ∼1kW from the IOPO at 8.3 W diode power at 50°C. Spectral tuning of the three-line IOPO with temperature was demonstrated.

恭喜NILP最近研究的題目"Double-prism domain PPLN for simultaneous laser Q-switching and optical parametric oscillation in a Nd:YVO4 laser" 被OPTICS EXPRESS所接受，並刊載在12/16的期刊上。
摘要...
We report a design and demonstration of an electro-optically Q-switched intracavity optical parametric oscillator (IOPO) based on a unique ramped duty-cycle periodically poled lithium niobate (PPLN) in a diode-pumped 1064-nm Nd:YVO4 laser. The PPLN crystal, having a double-prism domain (DPD) structure with a domain period of 30 μm, can work simultaneously as an electro-optic (EO) beam deflector (and therefore an EO Q-switch in the laser cavity) and an optical parametric down converter. The characterized deflection sensitivity of the DPD PPLN device was 1.15°/kV-cm. At a 180-V Q-switching voltage and a 1-kHz switching rate, we measured a down-converted signal at 1550 nm with pulse energy of >8.1 μJ (or peak power of >2.3 kW) from the constructed IOPO at 7.5-W diode pump power. Continuous wavelength tuning of the IOPO signal was also demonstrated.