Fabrication of Polymer Distributed Feedback Laser by Direct Interference Ablation

TIAN Zhen-rong; LIU Yue-feng; JIN Yu; BAI Yu; FENG Jing

doi:10.3788/fgxb20123302.0197

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Fabrication of Polymer Distributed Feedback Laser by Direct Interference Ablation

paper | 更新时间：2020-08-12

- Fabrication of Polymer Distributed Feedback Laser by Direct Interference Ablation
- Chinese Journal of Luminescence Vol. 33, Issue 2, Pages: 197-200(2012)
- 作者机构：
  
  1. 吉林大学电子科学与工程学院集成光电子学国家重点联合实验室,吉林长春,130012
  2. 长春理工大学光电工程学院,吉林长春,130022
  3. 空军航空大学飞行训练基地,吉林长春,130062
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123302.0197
  CLC： TN248.4
- Received：26 October 2011，
  
  Revised：24 November 2011，
  
  Published Online：10 February 2012，
  
  Published：10 February 2012
- 稿件说明：
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田桢熔, 刘岳峰, 金玉, 白昱, 冯晶. 激光烧蚀制备分布反馈式有机激光器件[J]. 发光学报, 2012,33(2): 197-200

TIAN Zhen-rong, LIU Yue-feng, JIN Yu, BAI Yu, FENG Jing. Fabrication of Polymer Distributed Feedback Laser by Direct Interference Ablation[J]. Chinese Journal of Luminescence, 2012,33(2): 197-200
田桢熔, 刘岳峰, 金玉, 白昱, 冯晶. 激光烧蚀制备分布反馈式有机激光器件[J]. 发光学报, 2012,33(2): 197-200 DOI： 10.3788/fgxb20123302.0197.

TIAN Zhen-rong, LIU Yue-feng, JIN Yu, BAI Yu, FENG Jing. Fabrication of Polymer Distributed Feedback Laser by Direct Interference Ablation[J]. Chinese Journal of Luminescence, 2012,33(2): 197-200 DOI： 10.3788/fgxb20123302.0197.

摘要

采用激光烧蚀的方法结合激光全息技术

直接在高分子聚合物MEH-PPV薄膜表面烧蚀光栅结构

制备了分布反馈式有机激光器。这一方法具有工艺简单、光栅参数的可控性和重复性好等优点。器件MEH-PPV的膜厚是400 nm。利用波长为355 nm的Nd-YAG纳秒激光器进行单脉冲烧蚀

获得的光栅周期和光栅高度分别为370 nm和 100 nm。利用飞秒激光放大器作为泵浦源激射DFB激光器件

得到激射阈值约为182 Jcm

-2

pulse

-1

光谱的波峰约在609 nm处

半高宽为4.2 nm。通过改变两光束的夹角获得了周期为360

370

380

390 nm的光栅

它们对应的激光波峰分别为602.91

609.24

613.26

619.01 nm。

Abstract

The polymer distributed feedback (DFB) laser based on conjugated polymer poly(2-methoxy-5-(2'-ethylhexyloxy)-1

4-phenylene vinylene) (MEH-PPV) is reported in this paper. A one-step fabrication approach of laser ablation by two interference beams is employed and a periodic grating can be directly recorded onto the polymer layer. MEH-PPV is spin-coated to form a 400-nm-thick film on the substrate. The ablation experiments used a frequency-tripled Nd∶YAG laser (Spectra-physics Company) with 3 nm pulse width

10 ns pulse length

10 Hz repetition rate and 355 nm wavelength. The polymer film was exposed by two beams which were split from the UV laser with beam size of ~6 mm in diameter. The grating depth was fixed at around 100 nm by adjusting the laser power. The grating recorded on the polymer film with different periods was obtained by adjusting the writing angle. The DFB laser with grating period of 370 nm shows a lasing threshold of 182 Jcm

-2

pulse

-1

. The peak wavelength and the full width at the half maximum are 609 nm and 4.2 nm

respectively. The peak position is tuned over 18 nm by increasing the period from 360 nm to 390 nm.

关键词

Keywords

references

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