6/4/2019 – Congrats to Dr. Walter Fu on completing his B Exam! Best to luck to him and all his future endeavors. Check out Walter, Zimu and Frank at the May commencement ceremony:
All posts by Zimu Zhu
Frank spoke at Max Planck
7/29/2018 – Frank returns from speaking at the celebration of 15 years of the Max Planck Institute for the Science of Light. Wise group making waves!
Logan’s award
4/20/2018 – Congratulations to Logan Wright, who will be receiving the Tingye Li Innovation Prize at CLEO 2018 next month, to Zimu Zhu for receiving the Incubic/Milton Chang Travel Grant! Big news, and major recognition of their work!
Zack Ziegler’s research
7/21/2017 – Check out the latest issue of Cornell Engineering Magazine for an article on undergraduate research opportunities, starring our own Zack Ziegler! Meanwhile, Frank returns from giving an invited lecture at International Symposium on Ultrafast Photonics Technologies at Southampton and three talks at NLO in Hawaii.
Frank’s talk at Harvard
11/03/2016 – Prof Wise gave the Lester Wolfe lecture at the Wellman Center for Photomedicine, Harvard Medical School.
Xiang’s seminar
09/14/2016 – Special AEP seminar presented by Xiang Liu, Wise group alumni!
Logan’s talk 2016
07/18/2016 – Logan gives Summer Graduate Student STEM Colloquium talk:
Wise group at 4H 2016
06/30/2016 – Wise Group teaches youth to build crystal radio stations at 4H 2016:
Frank’s webinar
06/22/2016 – Frank gives OSA Webinar on “Spatiotemporal Dynamics of Optical Pulse Propagation in Multimode Fibers.” Check it out!
Self-similar pulse evolution in a fiber laser with a comb-like dispersion-decreasing fiber
Self-similar pulse evolution in a fiber laser with a comb-like dispersion-decreasing fiber
We demonstrate an erbium fiber laser with self-similar pulse evolution inside a comb-like dispersion-decreasing fiber (DDF), which has the potential of generating nJ-level few-cycle pulses directly from a fiber oscillator. A passive DDF is formally equivalent to a fiber with constant gain, and can thus support self-similar pulse evolution but without any bandwidth limitation. Considering the challenges to fabrication of DDF, we try to imitate an ideal DDF with a comb-like DDF based on segments of ordinary fibers, which offers major practical advantages. The laser generates 1.3 nJ pulses with parabolic shapes and linear chirps, which can be dechirped to 37 fs. This constitutes a 4-fold increase in pulse energy compared to previous reports of this pulse duration.
