Multiwavelength Q-switched pulse operation with gold nanoparticles as saturable absorber

Shi Li; Yu Yin; Elfed Lewis; Gerald Farrell; Masaki Tokurukawa; Ahmad Haziq Aiman Rosol; Sulaiman W. Harun; Pengfei Wang

doi:10.1117/1.OE.58.6.066104

8 June 2019 Multiwavelength Q-switched pulse operation with gold nanoparticles as saturable absorber

Shi Li, Yu Yin, Elfed Lewis, Gerald Farrell, Masaki Tokurukawa, Ahmad Haziq Aiman Rosol, Sulaiman W. Harun, Pengfei Wang

Author Affiliations +

Optical Engineering, Vol. 58, Issue 6, 066104 (June 2019). https://doi.org/10.1117/1.OE.58.6.066104

Abstract

A multiwavelength Q-switched pulse operation obtained directly using a Tm-doped fiber laser and employing gold nanoparticles (GNPs) as a saturable absorber (SA material) is reported. The GNPs SA exhibits a modulation depth of 5.4% and a nonsaturable loss of 21.3%. Due to the saturable absorption and the high nonlinearity, dual-wavelength and triple-wavelength Q-switched pulse operations are obtained at pump power levels of 200 and 500 mW. To the best of our knowledge, this is the first ever reported use of GNPs as SA in multiwavelength Q-switched lasing generation.

Citation Download Citation

Shi Li, Yu Yin, Elfed Lewis, Gerald Farrell, Masaki Tokurukawa, Ahmad Haziq Aiman Rosol, Sulaiman W. Harun, and Pengfei Wang "Multiwavelength Q-switched pulse operation with gold nanoparticles as saturable absorber," Optical Engineering 58(6), 066104 (8 June 2019). https://doi.org/10.1117/1.OE.58.6.066104

Received: 11 April 2019; Accepted: 14 May 2019; Published: 8 June 2019

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available