Dr. Ti Chuang Profile

Dr. Ti Chuang

Senior Program Manager at Fibertek Inc

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Publications (9)

Proceedings Article | 30 August 2017 Presentation + Paper

Compact, highly efficient, single-frequency 25W, 2051nm Tm fiber-based MOPA for CO2 trace-gas laser space transmitter

Doruk Engin, Ti Chuang, Slava Litvinovitch, Mark Storm

Proceedings Volume 10406, 1040606 (2017) https://doi.org/10.1117/12.2276339

KEYWORDS: Fiber lasers, LIDAR, Laser development, YAG lasers, Carbon dioxide lasers, Satellites, Carbon dioxide, Absorption, Frequency modulation, Earth's atmosphere

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Fibertek has developed and demonstrated an ideal high-power; low-risk; low-size, weight, and power (SWaP) 2051 nm laser design meeting the lidar requirements for satellite-based global measurement of carbon dioxide (CO₂). The laser design provides a path to space for either a coherent lidar approach being developed by NASA Jet Propulsion Laboratory (JPL)^1,2 or an Integrated Path Differential Lidar (IPDA) approach developed by Harris Corp using radio frequency (RF) modulation and being flown as part of a NASA Earth Venture Suborbital Mission—NASA’s Atmospheric Carbon and Transport – America.^3,4 The thulium (Tm) fiber laser amplifies a <500 kHz linewidth distributed feedback (DFB) laser up to 25 W average power in a polarization maintaining (PM) fiber. The design manages and suppresses all deleterious non-linear effects that can cause linewidth broadening or amplified spontaneous emission (ASE) and meets all lidar requirements. We believe the core laser components, architecture, and design margins can support a coherent or IPDA lidar 10-year space mission. With follow-on funding Fibertek can adapt an existing space-based Technology Readiness Level 6 (TRL-6), 20 W erbium fiber laser package for this Tm design and enable a near-term space mission with an electrical-to-optical (e-o) efficiency of <20%.

A cladding-pumped PM Tm fiber-based amplifier optimized for high efficiency and high-power operation at 2051 nm is presented. The two-stage amplifier has been demonstrated to achieve 25 W average power and <16 dB polarization extinction ratio (PER) out of a single-mode PM fiber using a <500 kHz linewidth JPL DFB laser^5-7 and 43 dB gain. The power amplifier’s optical conversion efficiency is 53%. An internal efficiency of 58% is calculated after correcting for passive losses. The two-stage amplifier sustains its highly efficient operation for a temperature range of 5-40°C. The absence of stimulated Brillouin scattering (SBS) for the narrow linewidth amplification shows promise for further power scaling.

Proceedings Article | 22 February 2017 Paper

Compact, highly efficient, athermal, 25W, 2051nm Tm-fiber based MOPA for CO2 trace-gas laser space transmitter

Doruk Engin, Ti Chuang, Mark Storm

Proceedings Volume 10083, 1008325 (2017) https://doi.org/10.1117/12.2250516

KEYWORDS: Transmitters, Carbon dioxide lasers, Carbon dioxide, Fiber amplifiers, High power fiber amplifiers, Optical amplifiers, Thulium, LIDAR, Absorption, Phase modulation, Fiber lasers, Gas lasers, Polarization

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SPIE Journal Paper | 9 August 2016

Development, testing, and initial space qualification of 1.5-μm, high-power (6 W), pulse-position-modulated fiber laser transmitter for deep-space laser communication

Shantanu Gupta, Doruk Engin, Dave Pachowicz, Jean-Luc Fouron, Juan Lander, Xung Dang, Slava Litvinovitch, Ti Chuang, Kent Puffenberger, Frank Kimpel, Rich Utano, Malcolm Wright

OE, Vol. 55, Issue 11, 111606, (August 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.111606

KEYWORDS: Laminated object manufacturing, Transmitters, Fiber amplifiers, Fiber lasers, Semiconductor lasers, Interfaces, Laser communications, Fiber optics, Fiber optic components, Optical communications

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Proceedings Article | 16 March 2016 Paper

Narrow linewidth UV laser transmitter for ozone DIAL remote sensing application

Ti Chuang, Joe Hansell, Tim Shuman, Tom Schum, Kent Puffenberger, Ralph Burnham

Proceedings Volume 9726, 97260H (2016) https://doi.org/10.1117/12.2209712

KEYWORDS: Sum frequency generation, Ultraviolet radiation, Ozone, Remote sensing, Optical parametric oscillators, Transmitters, Laser sources, LIDAR, Spectral resolution, Nd:YAG lasers, Nonlinear crystals, Crystals, Airborne laser technology, Near infrared, Mirrors, Laser applications

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Proceedings Article | 15 March 2016 Paper

Development, testing, and initial space qualification of 1.5-µm, high-power (6W), pulse-position-modulated (PPM) fiber laser transmitter for deep-space laser communication

Shantanu Gupta, Doruk Engin, Dave Pachowicz, Jean-Luc Fouron, Juan Lander, Xung Dang, Slava Litvinovich, Ti Chuang, Kent Puffenberger, Frank Kimpel, Rich Utano, Malcolm Wright

Proceedings Volume 9739, 97390V (2016) https://doi.org/10.1117/12.2213661

KEYWORDS: Transmitters, Fiber lasers, Laser communications, Astronomical imaging, Asteroids, High power lasers, Laser development, Polarization, Diffraction, Laser sources, Laminated object manufacturing, Semiconductor lasers, Electronics, Interfaces, Optical communications, Fiber optic components, Pulsed laser operation

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Proceedings Article | 20 February 2015 Paper

Single frequency and wavelength stabilized near infrared laser source for water vapor DIAL remote sensing application

Ti Chuang, Brooke Walters, Tim Shuman, Andrew Losee, Tom Schum, Kent Puffenberger, Ralph Burnham

Proceedings Volume 9342, 93420J (2015) https://doi.org/10.1117/12.2077283

KEYWORDS: Optical parametric oscillators, Transmitters, Laser stabilization, Absorption, Near infrared, Laser systems engineering, Laser sources, Oscillators, Airborne laser technology, Resonators

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Proceedings Article | 26 September 2014 Paper

Design validation for ICESat2 space-based laser transmitter

Patrick Burns, Nicholas Sawruk, Andre VanTuijl, Slava Litvinovitch, Ti Chuang, Ryan Edwards, William Rudd, Elias Fakhoury, Theodore Wysocki, Floyd Hovis

Proceedings Volume 9218, 92181G (2014) https://doi.org/10.1117/12.2062323

KEYWORDS: Laser development, Electromagnetic coupling, Transmitters, Laser applications, Space telescopes, Laminated object manufacturing, Fiber amplifiers, Near field optics, Fourier transforms, Reliability

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Proceedings Article | 6 March 2013 Paper

Space-based, multi-wavelength solid-state lasers for NASA's Cloud Aerosol Transport System for International Space Station (CATS-ISS)

Ti Chuang, Patrick Burns, E. Brooke Walters, Ted Wysocki, Tim Deely, Andy Losse, Khoa Le, Bill Drumheller, Tom Schum, Mark Hart, Kent Puffenburger, Bill Ziegler, Floyd Hovis

Proceedings Volume 8599, 85990N (2013) https://doi.org/10.1117/12.2005545

KEYWORDS: Computed tomography, Laminated object manufacturing, Semiconductor lasers, Oscillators, Laser systems engineering, Optical amplifiers, Laser applications, Transmitters, Mirrors, Modes of laser operation

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Proceedings Article | 14 September 2011 Paper

High efficiency laser designs for airborne and space-based lidar remote sensing systems

F. Hovis, R. Burnham, M. Storm, R. Edwards, P. Burns, E. Sullivan, J. Edelman, K. Andes, B. Walters, K. Le, C. Culpepper, J. Rudd, T. Chuang, X. Dang, J. Hwang, T. Wysocki

Proceedings Volume 8159, 815903 (2011) https://doi.org/10.1117/12.896106

KEYWORDS: Laser development, Transmitters, LIDAR, Oscillators, Pulsed laser operation, Prototyping, Optical amplifiers, Diodes, Remote sensing, Semiconductor lasers

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Showing 5 of 9 publications

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