Work

Passively Q-switched 2.9 μm Er:YAP single crystal laser using graphene saturable absorber

Year: 2019

Type: article

Abstract: A passively Q-switched 2.9 μ m Er:yttrium aluminum perovskite (YAP) laser using a monolayer graphene saturable absorber (SA) was demonstrated in this research. Stable pulsed operation was performed with the shortest pulse duration of 460 ns and the highest repetition rate of 114 kHz. This is the first demonstration of a passively Q-switched mid-infrared (mid-IR) Er:YAP pulse modulated by graphene SA. In Q-switched operation, the maximum pulse energy of 5.1 μ J and the highest peak power of 10 W were obtained. To our knowledge, these parameters are the highest values in a graphene Q-switched mid-IR Er:YAP laser.

Source: Applied Physics Express

DOI: 10.7567/1882-0786/ab3e61

Authors: Hiroki Kawase, Hiyori Uehara, Hengjun Chen, Ryo Yasuhara

Institutions: The Graduate University for Advanced Studies, SOKENDAI, National Institute for Fusion Science

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funders: Amada Foundation, Japan Society for the Promotion of Science

Awards: Dynamic Hydrogen Isotope Transfer Phenomena by Mid-Infrared Laser Spectroscopy, G8492843638