Mode Locking of Lasers with Atomic Layer Graphene
Abstract
In this research project, Chemical Vapor Deposition (CVD) was used to fabricate high quality large size atomic layer graphene followed by experimental investigation of nonlinear optical saturable absorption properties; this investigation confirmed that atomic layer graphene can exhibit ultrafast, super broadband, polarization insensitive saturable absorption, which can be exploited for the passive mode locking of lasers of various operating wavelengths. Self-started mode locking of Erbium-, Ytterbium-, and Thulium-doped solid state fiber lasers operating at 1.55m, 1.03m, and 2014nm, respectively, was demonstrated. It was also observed that the longer the laser operating wavelength, the easier to achieve mode locking. Graphene derivatives were prepared using chemical functionalization to modify the graphene saturable absorption properties. Attempts to use graphene to mode lock a semiconductor laser operating at 770nm failed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2012
- Accession Number
- ADA570169
Entities
People
- Dingyuan Tang
Organizations
- Nanyang Technological University