Blue light laser by direct frequency doubling of VCSEL

MA Ying; WANG Cheng; MIAO Tong-qun

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Blue light laser by direct frequency doubling of VCSEL

更新时间：2020-08-12

- Blue light laser by direct frequency doubling of VCSEL
- Optics and Precision Engineering Vol. 13, Issue 3, Pages: 253-259(2005)
- 作者机构：
  
  1. 中国科学院上海应用物理研究所上海,201800
  2. 上海交通大学激光与光子生物医学研究所上海,200030
  3. 中国科学院长春光学精密机械与物理研究所,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN248.1
- Received：22 February 2005，
  
  Revised：18 April 2005，
  
  Published Online：30 June 2005，
  
  Published：30 June 2005
- 稿件说明：
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MA Ying, WANG Cheng, MIAO Tong-qun. Blue light laser by direct frequency doubling of VCSEL[J]. Optics and precision engineering, 2005, 13(3): 253-259.
DOI：

MA Ying, WANG Cheng, MIAO Tong-qun. Blue light laser by direct frequency doubling of VCSEL[J]. Optics and precision engineering, 2005, 13(3): 253-259. DOI：

摘要

980 nm垂直腔面发射激光器(VCSEL)采用直接倍频和在复合腔中倍频两种方式实现了490 nm蓝光输出。整形采用0.23p@980nm的自聚焦透镜(GRIN lens)

倍频晶体选择非线性系数相对较大、允许角相对较宽的LBO晶体。在VCSEL输出功率为530 mW时

选取透过波长为980 nm、长度为0.23 pitch的自聚焦透镜整形

倍频晶体选择2 mm×2 mm×5 mm的LBO晶体

输出了50 μW的490 nm蓝光

在增加了曲率半径

50 mm的外腔镜后得到了70 μW的490 nm蓝光。

Abstract

A 980 nm vertical cavity surface emitting(VCSEL) laser realizes frequency doubled by directly doubling and compound cavity doubling and obtains 490 nm blue laser. GRIN lens are used for shaping beam and LBO crystal is employed for secondary harmonic generation(SHG). In the experiment

the output power of the fundamental frequency laser is 530 mW

Gauss beam is adjusted by one GRIN lens with a length of 0.23p@980 nm and a LBO crystal with dimensions of 2 mm×2 mm×5 mm. And 490 nm blue beam of 50 μW is obtained. By adding an external cavity mirror with a radius curvature of 50 mm

the output power of 490 nm blue beam is increased to 70 μW.

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Keywords

references

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