Compression of the self-Q-switching in semiconductor disk lasers with single-layer graphene saturable absorbers

We demonstrate the first use of single layer graphene for compressing self-Q-switching pulses in semiconductor disk lasers. The gain region of the semiconductor disk laser used InGaAs quantum wells with a central wavelength of 1030 nm. Due to self saturable absorption of the quantum wells, the disk...

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Bibliographic Details
Published inChinese physics B Vol. 23; no. 9; pp. 228 - 231
Main Author 于振华 田金荣 宋宴蓉
Format Journal Article
LanguageEnglish
Published 01.09.2014
Subjects
Compressing
Disks
Graphene
Laser cavities
Lasers
Pulse width
Pumps
Quantum wells
Q开关
Semiconductors
半导体激光器
单层
可饱和吸收体
器具
盘形激光器
石墨
磁盘压缩
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Summary:We demonstrate the first use of single layer graphene for compressing self-Q-switching pulses in semiconductor disk lasers. The gain region of the semiconductor disk laser used InGaAs quantum wells with a central wavelength of 1030 nm. Due to self saturable absorption of the quantum wells, the disk laser emitted at the self-Q-switching state with a pulse width of 13 μs. By introducing the single layer graphene as a saturable absorber into the V-shaped laser cavity, the pulse width of the self-pulse was compressed to 2 μs with a lower pump power of 300 mW. As the pump power was increased, multiple pulses with the pulse width of 1.8 μs appeared. The compression factor was about 7.2.
Bibliography:Yu Zhen-Hua, Tian Jin-Rong, Song Yan-Rong（ Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, China）
11-5639/O4
semiconductor disk laser, graphene, compression
We demonstrate the first use of single layer graphene for compressing self-Q-switching pulses in semiconductor disk lasers. The gain region of the semiconductor disk laser used InGaAs quantum wells with a central wavelength of 1030 nm. Due to self saturable absorption of the quantum wells, the disk laser emitted at the self-Q-switching state with a pulse width of 13 μs. By introducing the single layer graphene as a saturable absorber into the V-shaped laser cavity, the pulse width of the self-pulse was compressed to 2 μs with a lower pump power of 300 mW. As the pump power was increased, multiple pulses with the pulse width of 1.8 μs appeared. The compression factor was about 7.2.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/23/9/094206