Passive Q‐switched operation of Tm:YAP laser with a TaTe<sub>2</sub> saturable absorber
Xin He, Tianqi Qi, Qiong Gao, Wenlong Yang, Shuang Yu
Abstract
Abstract In this paper, a Tm:YAP all‐solid‐state continuous wave (CW) and passive Q‐switched (PQS) laser were experimentally proved by using a TaTe 2 ‐based saturable absorber (SA) for the first time. Under the CW mode, the maximum output power was 4.99 W and the slope efficiency was 29.8%. Based on TaTe 2 SA, the shortest pulse width of 585 ns at the central wavelength of 1987.9 nm was obtained with the pump power of 17.73 W, corresponding to single‐pulse energy of 9.7 µJ and an average output power of 1.86 W. Also, a pulse repetition frequency of 202.4 kHz was achieved in the PQS Tm:YAP laser when the pump power was 13.51 W.
Topics & Concepts
Saturable absorptionLaserMaterials scienceQ-switchingOpticsPulse-width modulationPulse (music)WavelengthPower (physics)Slope efficiencyContinuous wavePulse repetition frequencyOptoelectronicsPhysicsFiber laserTelecommunicationsEngineeringQuantum mechanicsRadarDetectorSolid State Laser TechnologiesAdvanced Fiber Laser TechnologiesPhotorefractive and Nonlinear Optics