高穩定度超窄線寬光纖布拉格光柵外腔半導體雷射之設計

本研究使用光纖布拉格光柵(Fiber Bragg Grating)以及類點光源雷射二極體，以製造出一可調變波長、高穩定性之超窄線寬外腔半導體雷射系統。使用光纖允許穩定長共振腔以及良好的雷射輸出橫模，基本上為TEM00模。使用類點光源雷射二極體則允許雷射至光纖耦合率達70%以上，以提供良好的光學回授以及雷射輸出功率。此光纖光柵外腔雷射具有單縱模輸出，且其自由線寬為12 kHz。雷射波長則可藉由對光纖施以張力或是改變光纖光柵的溫度加以調變，且雷射可被穩頻在銣原子之D2躍遷譜線上。

關鍵字

外腔半導體雷射(External Cavity Diode Laser, ECDL) ；布拉格光纖光柵(fiber Bragg grating, FBG) ；超窄線寬雷射(Ultra-narrow linewidth laser)

並列摘要

This study uses a Fiber Bragg Grating (FBG) and a Virtual Point Source Laser (VPSL) to create an ultra-narrow linewidth external cavity diode laser system (ECDL). Fiber allows a stable long cavity and very good output transverse mode, essentially TEM00 mode. With a VPSL diode, 70% of laser light can be coupled into the optical fiber, which allows a good optical feedback and a higher output power. The free running linewidth of this ECDL was measured as 12 kHz. The wavelength of this ECDL can be tuned by either changing the applied stress or the temperature of the fiber grating, and this laser can be frequency stabilized to a D2 transition frequency of 87Rb.

並列關鍵字

External Cavity Diode Laser (ECDL) ； fiber-Bragg-grating (FBG) ； Ultra-Narrow Linewidth Laser

參考文獻

27. 王士奇，超窄線寬光纖布拉格光柵外腔半導體雷射，碩士論文，國立台北科技大學機電整合研究所，台北，台灣，2013。

1. Qian Lin, Mackenzie A. Van Camp, Hao Zhang, Branislav Jelenković and Vladan Vuletić , “Long-external-cavity distributed Bragg reflector laser with subkilohertz intrinsic linewidth,” Optics Letters, Vol. 37, No. 11, 2012, pp. 1989-1991

2. Steven Chu, L. Hollberg, J. E. Bjorkholm, Alex Cable and A. Ashkin, “Three-Dimensional Viscous Confinement and Cooking of Atoms by Resonance Radiation Pressure,” Physical Review Letters ,Vol. 55, No. 1, 1985, pp. 48-51

4. Jharna Mandal , Yonghang Shen, Suchandan Pal , Tong Sun, Kenneth T.V. Grattan, Andreas T. Augousti, “Bragg grating tuned fiber laser system for measurement of wider range temperature and strain,” Optics Communications, 244, 2005, pp. 111–121

5. Wolfgang Ecke, Kerstin Schroder, Andrey Andreev, Reinhardt Willsch, “Thermally stable optical fibre Bragg grating wavelength reference,” Optics Communications, 284, 2011, pp. 1557–1560

國際替代計量

高穩定度超窄線寬光纖布拉格光柵外腔半導體雷射之設計

全文下載

主題瀏覽