A mode-locked 1.91 μm fiber laser based on interaction between graphene oxide and evanescent field

Title
A mode-locked 1.91 μm fiber laser based on interaction between graphene oxide and evanescent field
Authors
정민완구준회풀락송용원이주한
Keywords
2 um laser; graphene oxide; evanescent field interaction; mode-locking; fiber laser
Issue Date
2012-11
Publisher
Applied Physics Express
Citation
VOL 5, NO 11, 112702-1-112702-3
Abstract
The use of a graphene oxide (GO)-deposited D-shaped fiber as a saturable absorber for mode locking of a thulium-doped fiber laser is experimentally demonstrated. By using the evanescent field interaction of an oscillating beam with GO, a passive mode locking operation at a wavelength of ~1.91 µm is shown to be achievable from a ring cavity. Stable picosecond pulses are readily obtained at a repetition rate of 15.9 MHz. This demonstration confirms that GO is a cost-effective saturable absorber applicable for ~2 µm ultrafast pulse generation.
URI
http://pubs.kist.re.kr/handle/201004/43405
ISSN
18820778
Appears in Collections:
KIST Publication > Article
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