National Science Council

Tsinghua University

New Focus, Inc.

Turning Point Lasers Corporation

Chi-Luen Wang

Ci-Ling Pan

Shih-Wei Lin

Ting-Ming Huang

Ching-Fen Kao

Yung-Fu Chen

Alexey Zaytsev

Chih-Hsuan Lin

Yi-Jing You

Tai-Ming Chang

Hung-Sheng Lee

Jui-I Tsai

Yu-ching Yeh

Chun-Hui Yu

Feng-Hua Tsai

Yuan-he Teng

Szutsun Simon Ou

Li-Chang Tsou

Sheng-Ping Lai

A low numerical aperture fiber output diode laser module, which having several independent diode lasers, and collimated and converged the light beam, for the coupling the light to the core optical fiber with a core diameter of 105 um and a numerical aperture of 0.12. Compared with general products with a numerical aperture of 0.22, the light output angle is reduced to 55%, and use a general blue laser diode for verification. Use an optical software for facilitating the design and optimization of the parameters of the optical lens module.

Low numerical aperture fiber output diode laser module

A fiber laser having a ring resonance path comprises a pump light source, a Yb-doped optical fiber and a light modulation unit. The pump light source emits a pump light. The Yb-doped optical fiber is coupled with the pump light. The light modulation unit includes a grating pair, a diaphragm and two reflective elements. The grating pair is coupled with the pump light. The diaphragm includes an aperture. The light transmitted by the grating pair partially passes through the aperture and reaches one of the reflective elements to become a reflective light, and the reflective light passes through the aperture and is transmitted through the grating pair and the other reflective element to be coupled back with the ring resonance path.

Fiber laser

A butt-coupling pumped single-mode solid-state laser is provided for generating a laser of single-transverse and single-longitudinal mode. The butt-coupling pumped single-mode solid-state laser includes: (1) a laser diode having an output facet for producing a pumping light; (2) a laser crystal immediately connected to the output facet of the laser diode with a specific length therebetween for generating an excited light at a fundamental wavelength in response to the pumping light; and (3) a mirror disposed away from the laser crystal with a specific distance for emanating a laser output.

Butt-coupling pumped single-mode solid-state laser with fiber-coupled

A rapid and linear scanning optical delay line was attained by the use of a helicoid reflecting mirror which was spun by a DC servo motor for bringing about a periodic change in the optical path length of the reflected light beam. The double-pass scanning range of the delay time as large as 80 picosecond was attained by the scanning optical delay line having a helicoid reflecting mirror having 12 mm in pitch distance. The scanning optical delay line was used in an optical second-harmonic generation autocorrelator, which was thus capable of scanning successfully a picosecond optical pulse train. A real-time scanning of the picosecond laser pulse of a mode-locked Titanium:Sapphire was verified.

Scanning optical delay device having a helicoid reflecting mirror

A diode laser utilizing a grazing incidence grating in combination with collimating and refocusing devices and a mirror having a plurality of spaced reflective areas which are effective to return different wavelengths to the grating and thence to the laser to sustain oscillation at the reflected frequencies with tuning of the frequencies accomplished by translation of the mirror to position the reflective areas to change the reflected wavelengths.

Tunable, multiple frequency laser diode

Growing community of inventors

Hsinchu, Taiwan

Chi-Luen Wang