TUNABLE EXTERNAL CAVITY LASER BASED ON LIQUID CRYSTAL FABRY-PEROT INTERFEROMETER AND LIQUID CRYSTAL PHASE SHIFTER

被引：4
作者：
Seah, L. K. [1 ]
Murukeshan, V. M. [1 ]
Wang, P. [1 ]
Chao, Z. X. [2 ]
机构：
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
[2] SPRING Singapore, Natl Metrol Ctr, Singapore, Singapore
来源：
INTERNATIONAL JOURNAL OF OPTOMECHATRONICS | 2007年 / 1卷 / 01期
关键词：
D O I：
10.1080/15599610701232622
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An innovative non-mechanical and low power consumption continuous wavelength tunable external cavity laser (ECL) using liquid crystal tuning elements is demonstrated. The laser system consists of a gain chip, a collimating lens, tuning elements, and a partial reflection mirror. The tuning elements include a liquid crystal Fabry-Perot interferometer (LC-FPI) and a LC phase shifter. The LC-FPI fulfills the mode-hopping tuning and the continuous tuning is achieved by the LC phase shifter. A coarse wavelength tuning range of 40 nm and sidemode suppression of about 25 dB is obtained.
引用
收藏
页码：63 / 72
页数：10
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