Korea Advanced Institute of Science and Technology

Seung Ryeol Oh

Soo Hyun Kim

Jin Hwan Kim

Sang Wook Lee

Seung Hwan Jo

Won Sik Kwon

Jin Doo Choi

Hyub Lee

Sung Yoon Ryu

Kyung-Soo Kim

Kyung-Suo Kim

Provided is a device of generating various types of pulses by controlling a distance between saturable absorber connectors, and more particularly, a device of generating various types of pulses by controlling a distance between saturable absorber connectors, capable of actively controlling a distance between saturable absorbers to completely overcome a disadvantage that an opened space is present in a cavity or a disadvantage that a fiber component should be changed and implementing a simple design of the entire fiber laser cavity since only a saturable absorber part, which is a portion of a fiber laser cavity, should be designed, as a carbon nanotube saturable absorber part in a passively mode-locked fiber laser generating apparatus using the saturable absorber.

Device which produces various types of pulses by controlling the distance between the saturable absorber connectors

Provided is single-walled carbon nanotube saturable absorber production via a multi-vacuum filtration method, and more particularly, single-walled carbon nanotube saturable absorber production via a multi-vacuum filtration method, capable of depositing a carbon nanotube thin film on a filter using a vacuum chamber and a membrane filter, etching the filter using an etchant so as to be transferred to an upper surface of the polymer, coating the polymer on the carbon nanotube to thereby produce a carbon nanotube saturable absorber, as a method of producing a carbon nanotube thin film to transfer the thin film to the polymer using a multi-filtration method in order to produce a passive saturable absorber to be used in laser oscillation.

Single walled carbon nanotube saturable absorber production via multi-vacuum filtration method

Growing community of inventors

Daegu, South Korea

Seung Ryeol Oh