Tao-Lue Chen

Kigre (United States)

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Christopher R. Hardy

Lawrence Livermore National Laboratory

Ximing Deng

Sun Yat-sen University

Shaohe Chen

Wenzhou City People's Hospital

Ruikun Wu

University of Science and Technology of China

Michael J. Myers

Center for Veterinary Medicine

John D. Myers

Kigre (United States)

John K. Driver

Kigre (United States)

Qirong Lu

Wuhan Polytechnic University

Ping Zhu

University of Chinese Academy of Sciences

Youming Chen

Harbin Institute of Technology

Cooperative Institutions

Shanghai Institute of Optics and Fine Mechanics

Kigre (United States)

Chinese Academy of Sciences

Sichuan University

Chengdu University

Academia Sinica

Research Center for Eco-Environmental Sciences

China Academy of Engineering Physics

Wuhan University of Technology

University of Wollongong

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Temporal reshaping of Q-switched pulse using two-photon absorption

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1992)

Ping Zhu Shaohe Chen Tao-Lue Chen Youming Chen Xiaodong Guo

In this paper, we use two-photon absorption (TPA) of GaAs, realize the temporal shaping of single longitudinal mode Q-switched pulses. The experimental results agree with the numerical solutions well.

Two-Photon Absorption

10.1117/12.130446

Cite

Citations (0)

Temporal shaping of single-longitudinal Q-switched pulses by means of two-photon absorption in an external cavity

Optical Engineering (1993)

Ping Zhu Shaohe Chen Tao-Lue Chen Youming Chen Xiaodong Guo

We use two-photon absorption of GaAs to realize the temporal shaping of single-longitudinal mode Q-switched pulses. The results of our experiment agree well with the numerical solutions.

Longitudinal mode

Two-Photon Absorption

10.1117/12.143711

Cite

Citations (0)

Photoconductive switch applied in solid state lasers

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1993)

Shaohe Chen Tao-Lue Chen Youming Chen Guoping Sheng Xuewen Si

On the basis of the GaAs photoconductor characteristic of the decrease resistance with the increase of irradiation, we first developed a high precision and ultrafast positive and negative feedback circuit. By using these techniques, we have made a novel method of mode-locking, automatic mode-selecting, Q-switching, and realizing synchronizing outputs of two independent pulse oscillators, the jitter is no more than +/- 1 ns.

Synchronizing

Photoconductivity

Mode (computer interface)

10.1117/12.144134

Cite

Citations (0)

Eye-safe erbium glass laser transmitter study Q-switched with cobalt spinel

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2004)

Ruikun Wu Tao-Lue Chen John D. Myers Michael J. Myers Christopher R. Hardy

This paper examines several characteristics and phenomenon associated with the optimization of diode pumped erbium ytterbium glass microlasers. Test results indicate that within an erbium ytterbium glass gain element, the excited erbium (laser) ion effective pump depth is larger than the excited ytterbium (sensitizer) ion effective pump depth. Designed specifically for diode pumping, JD phosphate laser glass host material exhibits high rare earth and sensitizer ion solubility. This enhanced doping capability allows the JD glass to be used in a variety of diode pump architectures that are not possible with most conventional crystal & glass laser materials. Our study has shown that new small gain element composite laser glass architectures & designs may be made used to more efficiently capture, contain and uniformly distribute the diode laser pump light. We expect this work to will lead to the next generation of high peak & average power "eye-safe" diode pumped microlasers for use in rangefinding, imaging, illumination tracking and targeting applications.

Ytterbium

Erbium

Laser diode

Phosphate glass

Optical Pumping

10.1117/12.542162

Cite

Citations (3)

New high-power rare-earth-doped fiber laser materials and architectures

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2003)

John D. Myers Ruikun Wu Tao-Lue Chen Michael J. Myers Christopher R. Hardy

Kigre is developing new rare-earth-doped glass fiber laser materials specifically for use in multiple clad and multiple core LMA and super mode (guided wave) fiber laser constructs. In this work we describe new end-pump double clad fiber laser designs fabricated from high performance phosphate laser glass compositions. One DC LMA fiber is doped with erbium/ytterbium for 1.54μm laser emission. Another DC LMA fiber is doped with ytterbium for 1.03μm laser emission. A third DC multiple core "supermode" fiber is doped with neodymium for 1.053μm laser emission. Initial fiber laser performance data is presented. The rebium/ytterbium & ytterbium only doped fibers are end-pumped at 940/975nm with 40-Watt fiber coupled laser diodes. The neodymium-doped fiber is end-pumped with an 808nm 40-Watt fiber coupled laser diodes. Design and performance data for new side-pumped, highly doped phosphate DC LMA fiber laser architectures are presented.

Ytterbium

Neodymium

10.1117/12.484168

Cite

Citations (6)

Short-length high-gain ASE fiber laser at 1.54-μm by high-codoped erbium and ytterbium phosphate laser glasses

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2004)

Ruikun Wu John D. Myers Tao-Lue Chen Michael J. Myers Christopher R. Hardy

Ytterbium only and erbium-ytterbium co-doped phosphate glass Double Clad (DC) cladding pumped Large Mode Area (LMA) core fibers are manufactured at Kigre by the "rod-in-tube" method. The ytterbium and erbium doping concentration levels in phosphate glass are as much as two orders of magnitude higher than the doping concentrations found in fused silica fiber manufactured by Modified Chemical Vapor Deposition (MCVD) method. The background loss of the fiber's core and cladding measured ~ 0.01 dB/per cm at 1310nm. The measured absorption coefficient at 974 nm is 0.3 dB/per cm for the ytterbium-erbium co-doped fiber. Greater than 4.6 Watts CW laser output was demonstrated from the Er:Yb:glass fiber at 1535nm with a 37.4% slop efficiency and 36.3% optical efficiency. The Yb:glass fiber produced a maximum output power of 1.6 Watts in a 14cm gain length.

Ytterbium

Erbium

Amplified spontaneous emission

Phosphate glass

10.1117/12.527974

Cite

Citations (1)

Laser automatic thick-film element photoetching system

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (1993)

Tao-Lue Chen Qirong Lu Shaohe Chen Ximing Deng

By using micro-computer controlled stepmotor, we made the laser beam scan in accordance with the pattern of the thick-film element, and measured its resistance at the same time. The resistance value precision can reach 10^-4.

10.1117/12.144171

Cite

Citations (0)

Multi-Pulses Behavior in a Erbium Glass laser Q Switched by Cobalt Spinal

Ruikun Wu Tao-Lue Chen Christopher R. Hardy

Cobalt Spinal (Co 2+ :MgO . Al2O3) has recently become one of the more popular 1.54um passive Q-switch materials. In this paper we examine the multi-pulse pulse-train behavior and its influence in time-of-flight laser range processing. This saturable absorber's performance is examined in terms of low gain erbium glass laser beam mode structure.

Saturable absorption

Erbium

Q-switching

Source

Cite

Citations (2)

Colliding pulse mode-locked Nd:YLF laser with negative feedback control by GaAs photoconductive switch.

Chinese Journal of Lasers B (1993)

朱健强张筑虹陈绍和 Tao-Lue Chen Chen Youming

Mode (computer interface)

Q-switching

Source

Cite

Citations (0)