Broadband and multiple-channel visible laser generation by use of segmented quasi-phase-matching gratings
✍ Scribed by Shiming Gao; Changxi Yang; Xiaosheng Xiao; Guofan Jin
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 211 KB
- Volume
- 233
- Category
- Article
- ISSN
- 0030-4018
No coin nor oath required. For personal study only.
✦ Synopsis
We investigate frequency conversion of near-infrared laser sources to generate visible laser outputs with segmented quasi-phase-matching (QPM) gratings through second-harmonic generation process. Analysis shows that segmented gratings have much broader conversion bandwidth and environment temperature tolerance than periodic gratings, which is extremely beneficial for reducing the difficulties of QPM for both laser sources and temperature-controlled devices. By use of a near-infrared broadband laser source, segmented gratings provide potential to realize multichannel visible laser sources that have many applications in, such as, high-density optical storage and high-definition television.