Chinese Journal of Lasers B, 2002, 11 (5): 347, 网络出版: 2006-08-08
Variable Wavelengths Fiber Bragg Gratings Written with A Phase Mask and Four Prisms
Variable Wavelengths Fiber Bragg Gratings Written with A Phase Mask and Four Prisms
摘要
Abstract
Using only one diffractive element, the Talbot interferometer provides a robust and inherently stable method for reproducing fiber Bragg gratings with variable wavelengths, and reduces the complexity of the fiber grating fabrication system. However, the usable length of the grating is limited by the practical length of the mirrors. This paper presents a phase mask with two fixed prisms and two rotational prisms to inscribe fiber Bragg gratings with variable Bragg wavelengths. In this system, the fiber Bragg grating is inscribed by UV interference stripes of 193 nm derived from two rotational prisms and two fixed prisms, where phase mask is used as a beam splitter of ±1 order diffraction light. It is noteworthy that the tunable phase mask interferometer decreases the demand of the length of prism evidently.
张以谟, 李川, 刘铁根, 丁胜, 吕且妮. Variable Wavelengths Fiber Bragg Gratings Written with A Phase Mask and Four Prisms[J]. Chinese Journal of Lasers B, 2002, 11(5): 347. ZHANG Yimo, LI Chuan, LIU Tiegen, DING Sheng, LV Qieni. Variable Wavelengths Fiber Bragg Gratings Written with A Phase Mask and Four Prisms[J]. 中国激光(英文版), 2002, 11(5): 347.
PDF全文
