A novel tunable diode laser with liquid crystal intracavity tuning element

Ru Pin Pan*, Yu-Pin Lan, Chao Yuan Chen, Ci Ling Pan

*此作品的通信作者

研究成果: Conference article同行評審

摘要

We propose a novel and simple approach for tuning of the laser wavelength. A homogeneously aligned nematic liquid crystal (NLC) cell with 4′-n-pentyl-4-cyanobiphenyl (5CB) is inserted in an external-cavity semiconductor laser as the fine-tuning element of wavelength. Varying the voltage biasing the NLC cell, its extraordinary index of refraction would change due to field-induced reorientation of the LC director. This is equivalent to tune the laser cavity length. As a result, the laser wavelength can be continuously tuned. With a NLC cell 35.5 μm in thickness, the output frequency of the present laser can be tuned over 4 GHz for a 30-cm-long laser cavity without hopping. The driving rms voltage was less than 2 volts.

原文English
期刊Molecular Crystals and Liquid Crystals
413
DOIs
出版狀態Published - 1 12月 2004
事件Proceedings of the 19th International Liquid Crystal Conference, ILCC2002 - Edinburgh, United Kingdom
持續時間: 30 6月 20025 7月 2002

指紋

深入研究「A novel tunable diode laser with liquid crystal intracavity tuning element」主題。共同形成了獨特的指紋。

引用此