I-Ning Hu

Center for Ultrafast Optical ScienceDepartment of Electrical Engineering and Computer Science

**** ********* ****., *** *****, MI 48109(734)acp2u2@r.postjobfree.com

QUALIFICATION SUMMARY

Broad knowledge of optical engineering with solid background in nonlinear optics and fiber optics

8+ years of hands-on experience in theoretical modeling, lasers and amplifiers building and characterizing

Demonstrated skills of problem-solving, quick learning, interpersonal communication, and self-management

EDUCATION

Ph.D. in Electrical Engineering, University of Michigan, Ann Arbor, MI (GPA: 4.0/4.0) August 2015

Research Field: Nonlinear Optical Effects in High Power Fiber Amplifiers (Expected)

M.S. in Photonics and Optoelectronics, National Taiwan University, Taiwan (GPA: 4.0/4.0) June 2008

Research Field: Quasi-Phase-Matching Devices for Optical Parametric Oscillators and RGB Lasers

B.S. in Physics, National Tsing-Hua University, Taiwan (GPA: 3.4/4.0) June 2004

WORK EXPERIENCE

Sep. 2009 Present

PhD Student Researcher, University of Michigan

Designed and built a tunable 10ns-pulse oscillator for seeding a 3-stage high energy fiber amplifier producing up to

500-kW output peak power and demonstrated the following properties of CCC fibers:

1) The suppression of SRS in passive 30-m and 60-m CCC fibers

2) Preservation of the output linear polarization at high peak power with selected input polarization status

Modeled modal instabilities in high power fiber amplifiers, analyzed the dynamical behavior of modal instabilities in

time- and frequency- domain and further proposed a strategy to mitigate TMI with modal loss in CCC Fibers

Modeled and experimentally characterized the linear and nonlinear polarization evolution for coiled CCC fibers

Mathematically proved the modal coupling principle and the bending induced coupling of helical modes in

polygonal-core CCC fibers, predicted a >100 dB/m HOM suppression, and exploited the designable modal dispersion

in a rifled-core fiber to achieve effective single-mode performance

Modeled FWM in passive LMA fibers, discovered the idler loss (<300 dB/m) at Mid-IR wavelength can stabilize and

favor the wavelength conversion to signal, and dissected the requirement and experimental achievability of efficient

FWM wavelength conversion in LMA fibers

Jun 2006 Jun 2009

MS Student Researcher, National Taiwan University

Developed a photolithography process and operated LabVIEW-controlled high-voltage system to fabricated PPLN

and PPLT devices, and optimized the poling status by simulating E-field distribution on metal-coated anisotropic

material. The minimum poled pitch of 7-m linewidth is achieved.

Designed and constructed a QPM optical parametric oscillator (OPO)-based intra-cavity lasers for 1) white light

generation 2) self-doubling OPO and achieved >22.6% conversion efficiency to the 434-nm signal

For industrial prototyping, assembled a SHG intra-cavity green laser using PPLN as gain media

Characterized red/green/blue (RGB) lasers with designed PPLNs/PPLTs as second-harmonic-generation crystals

Developed a 3D finite-difference-time-domain (FDTD) program to calculate the whisper-gallery-modes (WGM) and

Q-factor of triangular submicron cavities and benchmarked with the result calculated by commercial software

Sep 2007 Dec 2010

Teaching Assistant and Grader, National Taiwan University and University of Michigan

Assisted students during office hours, presented course review sessions, evaluated student work and provided

feedback for student improvement

Representative of Academic Society, University of Michigan

Secretary (2014) and Webmaster (2013), Student Chapter of OSA/SPIE Optical Society at the Univ. of Michigan

Executive Officer, ECE Graduate Student Council at the Univ. Michigan, 2013-2014

Session Chair, Engineering Graduate Symposium, Univ. of Michigan, 2012

Journal Paper Reviewer

IEEE Journal of Selected Topics in Quantum Electronics, Optics Express, Chinese Optics Letters

SKILLS

Laser building: Yb-doped high power fiber amplifiers, wavelength- and repetition rate-tunable ns oscillators, optical

parametric oscillators, intra-cavity RGB lasers with PPLN/PPLT as gain media

Optical fiber/crystal processing: Fabrication of fiber end-caps, SM/LMA fiber splicing and cleaving, crystal/fiber

end polishing

Optical measurement: Device transmission characterization using supercontinnum lasers, amplified-spontaneous-

emission sources, or white light sources; polarization measurement using half-wave plates and polarization beam

splitters, ns-pulse characterization using photo-detectors connected to an oscilloscope, M2 measurement using beam

profilers or knife-edge method

Modulation of optical waves: Polarization control using half-wave plates, quarter-wave plates, and polarizers; free-

space and fiber based wavelength-division multiplexing, phase/amplitude control using electro-optic and acousto-

optic modulators

Temperature control of optical systems: Water-cooling systems for fiber lasers and fiber amplifiers, temperature-

controlling systems of non-linear crystals, temperature monitoring using thermal cameras

Optical alignment: Free-space alignment using He-Ne lasers, lateral/height indicators; fiber-to-fiber coupling using

NanoMax flexure stages; alignment of linear optical cavities, free-space acousto-optic modulators, frequency

doublers; beam expanding or shrinking using designed telescopes

Micro-fabrication: Photolithography process, thermal evaporation/sputter, facet polishing, e-gun, scanning electron

microscope, etching

Computer Proficiencies: MATLAB, Mathematica, C, LabVIEW (CLAD-Certified), ZEMAX, R-Soft BeamPROP,

Lumerical FDTD, AutoCAD, Solidworks, Origin, EazyPlot, R, Python, Microsoft Office

PATENT

Lung Han Peng, Chih-Ming Lai, I-Ning Hu, Yin-Yao Lai, Chu-Hsuan Huang, "Apparatus and Methods for

Converting Laser Energy", US 201******** A1, 19 May, 2011

SELECTED PUBLICATIONS

5 journal papers, 15 conference proceedings published. 4 journal papers in preparation.

I-Ning Hu, Cheng Zhu, Michael Haines, "Nonlinear Polarization Switching and Preservation Effects in 55-m Core

Polygonal-CCC Fibers", The Conference on Lasers and Electro-Optics, San Jose, California, U.S.A., May 10 - 15,

2015

I-Ning Hu, Almantas Galvanauskas, "Analytical Time-Dependent Theory of Thermally Induced Modal Instabilities

in High Power Fiber Amplifiers", SPIE Photonic West, San Francisco, California, U.S.A., Feb. 2 - 7, 2013

I-Ning Hu, Xiuquan Ma, Cheng Zhu, Wei-Zung Chang, Chi-Hung Liu, Thomas Sosnowski, Almantas Galvanauskas,

"Experimental Demonstration of SRS Suppression in Chirally-Coupled-Core Fibers", Advanced Solid State

Photonics, San Diego, California, U.S.A., Jan. 29 - Feb. 1, 2012

C.-M. Lai, I.-N. Hu, Y.-Y. Lai, Z.-X.Huang, L.-H. Peng, A. Boudrioua, A.-H. Kung, "Up-conversion blue laser by

intracavity frequency self-doubling of periodically poled lithium tantalate parametric oscillator", Vol. 35, Issue 2, pp.

160-162, Optics Letters, 2010

HONORS AND AWARDS

Competent Communicator Award, Toastmaster International, 2014

Rackham Conference Travel Grant: Jan. 2012, Feb. 2013, May 2014, May 2015

Member of the Phi-Tau-Phi Scholastic Honor Society of the Republic of China

Student Paper Award, International Conference on Optics and Photonics in Taiwan 2008

Teaching Assistant Award, Electrical Engineering Department, National Taiwan University, 2007

Contact this candidate