研究目的
Investigating the transition between conventional soliton and stretched-pulse states in a mode-locked fiber laser using a hybrid structure of multimode fiber based saturable absorber.
研究成果
The study successfully demonstrates a soliton and stretched-pulse switchable mode-locked fiber laser using a hybrid SIMMF-GIMMF SA. The transition between conventional soliton and stretched-pulse states is experimentally confirmed for the first time in a 1.5 μm mode-locked fiber laser. The laser achieves a maximum single pulse energy of nearly 1 nJ and a minimum pulse duration of 310 fs, indicating the potential for practical applications in ultrafast photonics.
研究不足
The study is limited by the specific lengths of SIMMF and GIMMF used, which may affect the SA's performance and the laser's output characteristics. Additionally, the maximum single pulse energy achieved is nearly 1 nJ, which may not be sufficient for certain high-power applications.
1：Experimental Design and Method Selection:
The experiment involves the design of an all-fiber mode-locked laser utilizing a hybrid structure of step-index multimode fiber (SIMMF) and graded-index multimode fiber (GIMMF) as a saturable absorber (SA). The methodology includes the characterization of the SA's nonlinear transmission properties and the demonstration of soliton and stretched-pulse mode-locking states by adjusting pump power.
2：Sample Selection and Data Sources:
The samples include a segment of 104.4 μm SIMMF connected with 20 cm long GIMMF. Data sources are derived from the laser's output characteristics monitored through various devices.
3：4 μm SIMMF connected with 20 cm long GIMMF. Data sources are derived from the laser's output characteristics monitored through various devices. List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: - Highly erbium-doped gain fiber (EDF, Nufern SM-ESF-7/125)
4：Experimental Procedures and Operational Workflow:
The procedure includes splicing the SIMMF-GIMMF SA into the laser cavity, adjusting pump power and polarization controllers to initiate mode-locking, and monitoring output characteristics to observe the transition from soliton to stretched-pulse states.
5：Data Analysis Methods:
Analysis involves measuring the laser's output spectrum, pulse train, autocorrelation trace, and RF spectrum to characterize the mode-locking states and their stability.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Optical spectrum analyzer
AQ6370D
Yokogawa
Monitors the laser's output spectrum.
立即获取同款设备 -
Digital oscilloscope
TDS784D
Tektronix
Records the laser's pulse train.
暂无现货
预约到货通知
-
RF spectrum analyzer
N9000A
Agilent technologies
Analyzes the laser's RF spectrum.
暂无现货
预约到货通知
-
Highly erbium-doped gain fiber
SM-ESF-7/125
Nufern
Used as the gain medium in the fiber laser.
暂无现货
预约到货通知
-
980 nm diode laser source
Not provided
Not provided
Pump source for the fiber laser.
暂无现货
预约到货通知
-
Wavelength-division multiplexer coupler
Not provided
Not provided
Transmits at 980/1550 nm for pump and signal light.
暂无现货
预约到货通知
-
Polarization-insensitive isolator
PI-ISO
Not provided
Ensures unidirectional operation of the laser.
暂无现货
预约到货通知
-
Polarization controllers
Not provided
Not provided
Adjusts the polarization state within the laser cavity.
暂无现货
预约到货通知
-
Optical coupler
Not provided
Not provided
Provides 10% output port for monitoring the laser output characteristics.
暂无现货
预约到货通知
-
Commercial autocorrelator
HAC200
AInair
Measures the laser's pulse width.
暂无现货
预约到货通知
-
登录查看剩余8件设备及参数对照表
查看全部
