Generation of tunable blue-green light using ZnO periodically poled lithium niobate crystal fiber by self-cascaded second-order nonlinearity
Journal
Journal of the Optical Society of America B
Journal Volume
24
Journal Issue
8
Pages
1909-1915
Date Issued
2007
Author(s)
Lee, Li-Min
Pei, Shan-Chuang
Lin, Der-Fong
Chiu, Po-Chun
Tsai, Mon-Chang
Tai, Ta-Min
Sun, De-Hao
Kung, A. H.
Abstract
Using a novel self-cascaded first-order second-harmonic generation (SHG) and third-order sum-frequency generation (SFG) in a ZnO periodically poled lithium niobate crystal fiber, tunable blue-green light was demonstrated. At a domain pitch of 15.45 μm, the SHG signal and its fundamental signal at 1423.9 nm can satisfy the third-order SFG quasi-phase-matched (QPM) condition. The measured SHG power at 714.2 nm was 12.25 mW under 100 mW input power, and the estimated nonlinear coefficient (d33) achieved was 25.3 pm/V. The self-cascaded SHG+SFG power measured at 477.1 nm was ∼700 μW under 350 mW input power. The maximum internal efficiency of the SHG is 14.84%. The tuning range of the self-cascaded SHG and SFG generated tunable blue-green light was more than 40 nm, from 471.3 to 515 nm. The maximum simulated 3 dB bandwidth achieved using a gradient-period QPM structure is 196 nm, which is from 1476 to 1672 nm. The gain-bandwidth product of the self-cascaded SHG and SFG processes decreases drastically as the bandwidth is broadened.
SDGs
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
04.pdf
Size
393.23 KB
Format
Adobe PDF
Checksum
(MD5):906f3776b84c57053b351dbf62945d6f