超窄線寬光纖布拉格光柵外腔半導體雷射

Ultra-Narrow Linewidth Fiber-Bragg-Grating External Cavity Diode Laser

王士奇(Shih-Chi Wang)

指導教授 ： 莊賀喬 ； 張銘顯

國立臺北科技大學/機電學院/機電整合研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00349

摘要

本研究使用光纖布拉格光柵(fiber Bragg grating, FBG)以及單體腔體(monolithic block)，設計一外腔半導體雷射系統。此外，我們將光纖光柵纏繞在溫控之C型結構上，並以改變此結構之周長以對光纖施加應力，以達到改變腔長及調變雷射波長之目的。此雷射系統橫向輸出模態為TEM00、自由線寬為18 kHz。此外腔雷射可被穩頻在一Fabry-Perot共振腔以及銣原子之D2躍遷頻率。

關鍵字

外腔半導體雷射(external cavity diode laser) ； 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

In this thesis we built an external cavity diode laser system (ECDL) utilizing a Fiber Bragg Grating (FBG) and an aluminum monolithic block. The fiber can provide a very long laser cavity and a very good spatial mode, essentially TEM00 mode. The monolithic block which holds the laser diode and the fiber coupler, then provides a very sturdy structure for robust fiber coupling and optical feedback. The laser wavelength can be tuned by changing the fiber temperature and stress of fiber grating. The linewidth of this ECDL under free running was measured as 18 kHz. The frequency of laser was stabilized at Fabry-Perot cavity and 87Rb D2 line.

並列關鍵字

External Cavity Diode Laser ； fiber Bragg grating(FBG) ； Ultra-narrow linewidth laser

參考文獻

[9] 陳力綸，微小化布拉格光纖光柵之製作與量測，碩士論文，國立台灣大學光電工程研究所，台北，台灣，2008

[18] 陳子傑，以市售鏡座為基礎之體積全像光柵外腔雷射之開發，碩士論文，國立台北科技大學機電整合研究所，台北，台灣，2012。

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