OPTICAL FIBER LASER

WIPO Patent Application WO/2019/047507

A1

An optical fiber laser, comprising a pumping light source (140), a resonant optical circuit (110), a tuning device (120) and a current adjustment device; the pumping light source provides pumping light for the resonant optical circuit; the tuning device is provided on the resonant optical circuit, and the tuning device comprises a grapheme film (121) and a first optical fiber (122), the grapheme film covering the end face of a fiber core on one end of the first optical fiber; and the current adjustment device is connected to the grapheme film, and the current adjustment device is used for energizing the grapheme film and adjusting the current passing through the grapheme film. On one hand, as the current passing through the grapheme film is adjustable, the temperature of the grapheme film is adjustable, and the depth of modulation performed by the tuning device on the laser transmitted therethrough is changed, making the performance of the optical fiber laser tunable. On the other hand, the tuning device is an optical fiber device integrating the first optical fiber and the grapheme film, and therefore, the loss of an optical signal during transmission of same through the tuning device is small, enabling the optical fiber laser to have a better tuning effect.

LI CHENG (CN)
ZHENG ZHU (CN)
YANG BIN (CN)
XU FEI (CN)
DING QING (CN)

PCT/CN2018/080932

March 14, 2019

March 28, 2018

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SHENZHEN INST TERAHERTZ TECH & INNOVATION CO LTD (CN)
SHENZHEN INST TERAHERTZ TECH & INNOVATION (CN)

H01S3/067; G02F1/035

CN107482429A	2017-12-15
CN106129799A	2016-11-16
CN106953227A	2017-07-14
CN102591041A	2012-07-18
CN106936065A	2017-07-07

ADVANCE CHINA IP LAW OFFICE (CN)

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