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Title: High repetition rate Q-switched radially polarized laser with a graphene-based output coupler

We demonstrate a Q-switched radially polarized all-solid-state laser by transferring a graphene film directly onto an output coupler. The laser generates Q-switched radially polarized beam (QRPB) with a pulse width of 192 ns and 2.7 W average output power. The corresponding single pulse energy is up to 16.2 μJ with a high repetition rate of 167 kHz. The M{sup 2} factor and the polarization purity are ∼2.1 and 96%, respectively. Our QRPB source is a simple and low-cost source for a variety of applications, such as industrial material processing, optical trapping, and microscopy.
Authors:
; ; ; ;  [1] ;  [2] ;  [1] ;  [3] ;  [4]
  1. National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), and Institute of Photonics and Photon-Technology, Northwest University, Xi'an 710069 (China)
  2. Department of Physics, Northwest University, Xi'an 710069 (China)
  3. (China)
  4. Department of Micro- and Nanosciences, Aalto University, P.O. Box 13500, FI-00076 Aalto (Finland)
Publication Date:
OSTI Identifier:
22402380
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 22; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GRAPHENE; KHZ RANGE 100-1000; MICROSCOPY; POLARIZATION; POLARIZED BEAMS; PULSES; Q-SWITCHING; SOLID STATE LASERS