Diode-pumped, All-solid-state Cr:LiSGaF Laser

A compact and efficient CW Cr: LiSGaF laser pumped by two 670 nm laser diodes was reported. Average power as high as 125 mW was generated with a absorbed pump power of 800 mW. The slope efficiency was 17.2%, and the threshold was 72 mW. The tunability of the laser in detail was investigated and a tuning range of 100 nm from 790 to 890 nm was obtained.     

Diode-pumped Solid-state Cr~(4 )∶Nd∶YAG/KTP Green Laser

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｄｉｏｄｅ ｐｕｍｐｅｄｓｏｌｉｄ ｓｔａｔｅ ｐａｓｓｉｖｅ Ｑ ｓｗｉｔｃｈｅｄｓｅｃｏｎｄｈａｒｍｏｎｉｃｇｅｎｅｒａｔｉｏｎｌａｓｅｒｈａｓｈｉｇｈｐｏｗｅｒａｎｄｈｉｇｈｒｅｐｅｔｉｔｉｏｎｒａｔｅｐｕｌｓｅｉｎｎａｎｏｓｅｃｏｎｄｐｅｒｉｏｄ ,ａｎｄｖａｒｉｏｕｓａｐｐｌｉｃａｔｉｏｎｓｉｎｍｉｃｒｏ ｍｅｃｈａｎｉｃｓ ,ｍｅａｓｕｒｅｍｅｎｔｓ,ｆｉｌｍ ｃａｒｖｅ ,ｍｉｃｒｏ ｏｐｅｒａｔｉｏｎｓｉｎｓｕｒｇｅｒｙ ,ａｎｄｓｏｏｎ[1] .Ｒｅｃｅｎｔ ｙｅａｒ…     

Diode-end-pumped Nd∶YAG Laser with Cr~(4 )∶YAG as Passive Q-switch

１．ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｒｅａｒｅｓｅｖｅｒａｌｏｒｇａｎｉｃｄｙｅｓｔｈａｔｈａｖｅｂｅｅｎｕｓｅｄｆｏｒｐａｓｉｖｅｌｙＱｓｗｉｔｃｈｉｎｇａｎｄｍｏｄｅｌｏｃｋｉｎｇｉｎｆｒａｒｅｄＮｄｌａｓｅｒｓ．Ｄｙｅｓ，ｈｏｗｅｖｅｒ，ｈａｖ...     

Experimental Study on Intracavity SHG of a -Switched Tunable Cr∶LiSAF Laser

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｉｎｒｅｃｅｎｔｙｅａｒｓ,ｔｈｅｄｉｆｆｅｒｅｎｔｉａｌａｂｓｏｒｐｔｉｏｎｌｉｄａｒ (ＤＩＡＬ)ｈａｓｂｅｃｏｍｅｔｈｅｐｏｗｅｒｆｕｌｔｏｏｌｔｏｍｅａｓｕｒｅｔｈｅａｔｍｏｓｐｈｅｒｉｃ ｐｏｌｌｕｔｉｏｎ .ＮＯ2 ,ｉｔｓｃｈａｒａｃｔｅｒｉｓｔｉｃａｂｓｏｒｐｔｉｏｎｗａｖｅｌｅｎｇｔｈｓａｔ 4 4 8.1ｎｍａｎｄ 4 4 9.1ｎｍ ,ｉｓｏｎｅｏｆｔｈｅｍｏｓｔｉｍｐｏｒｔａｎｔｐｏｌｌｕｔｉｏｎｉｎａｔｍｏｓｐｈｅｒｅ .Ａｐｏｗｅｒｆｕｌｄｙｅｌａｓｅｒｐｕｍｐｅｄ…     

Operative Characteristics of the Dual-wavelength Cr: LiSAF Laser

ＯｐｅｒａｔｉｖｅＣｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｔｈｅＤｕａｌ┐ｗａｖｅｌｅｎｇｔｈＣｒＬｉＳＡＦＬａｓｅｒＬＩＵＧｕｏｒｏｎｇＷＡＮＧＮｕｏＦＥＮＧＸｕａｎｑｉ（ＰｈｙｓｉｃｓＤｅｐａｒｔｍｅｎｔ，ＮｏｒｔｈｗｅｓｔＵｎｉｖｅｒｓｉｔｙ，Ｘｉ?..     

Repetition-rate Tube-shaped Nd∶YAG Laser

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｅｓｅｙｅａｒｓ，ｓｏｌｉｄｓｔａｔｅｌａｓｅｒｄｅｖｅｌｏｐｓｒａｐｉｄｌｙ．Ｔｈｅｒｅ’ｒｅｍａｎｙｔｙｐｅｓｏｆｓｏｌｉｄｓｔａｔｅｌａｓｅｒｓ，ｂｕｔＮｄ∶ＹＡＧｌａｓｅｒｉｓｓｔｉｌｏｎｅｏｆｔｈｅｍｏ...     

Experiment Study of Dual Wavelength and Dual Pulse Q-switched Intracavity Frequency Doubling of a Tunable Cr∶LiSAF Laser

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｃｒ∶ＬｉＳＡＦｌａｓｅｒｈａｓａｔｕｎｉｎｇｒａｎｇｅｆｒｏｍ780ｔｏ 1 0 2 0ｎｍ ,ａｎｄａｎｅｘｃｉｔｅｄｌｉｆｅｔｉｍｅｏｆ67μｓ[1 ] ｗｈｉｃｈｉｓｓｕｉｔａｂｌｅｆｏｒｆｌａｓｈｌａｍｐｐｕｍｐｉｎｇａｎｄＱ ｓｗｉｔｃｈｉｎｇ.Ｔｈｅｒｅｆｏｒｅ ,ｔｈｅｌａｓｅｒｈａｓａｐｏｔｅｎｔｉａｌａｐｐｌｉｃａｔｉｏｎｉｎｄｉｆｆｅｒｅｎｔｉａｌａｂｓｏｒｐｔｉｏｎｌｉｄａｒ (ＤＩＡＬ) .Ｔｈｅ 2ｎｄ ,3ｒｄａｎｄ 4ｔｈｈａｒｍｏｎｉｃｗａｖｅｓｏｆｐｕｌｓｅｏｕｔ…     

A Novel Tunable Dual-frequency Laser with Large Frequency Difference

This paper proposed a novel tunable dual frequency laser with large frequency difference,which used LD to pump the Nd∶YAG microchip in the end surface and put the liquid pressure on the radial direction of the crystal by a pressure-transporting thin film. As a result of the stress birefringence, there was a mode splitting phenomenon of the microchip laser longitudinal mode. Both theoretical analysis and experiments indicated that there is a directly proportional relation between the frequency difference and the pressure, so the tunable frequency difference could be obtained when the pressure was changed. A large frequency difference of about 3.4 GHz with linear tunable relation was achieved in the experiment,so it can be a practical light source for the absolute distance interferometry.     

A Novel Tunable Dual-frequency Laser with Large Frequency Difference

1　ＩｎｔｒｏｄｕｃｔｉｏｎＢｉｒｅｆｒｉｎｇｅｎｔｄｕａｌ ｆｒｅｑｕｅｎｃｙｌａｓｅｒ[1] ｉｓｂａｓｅｄｏｎｍｏｄｅ ｓｐｌｉｔｔｉｎｇｔｅｃｈｎｏｌｏｇｙ[2 ] ａｎｄａｂｉｒｅｆｒｉｎｇｅｎｔｅｌｅｍｅｎｔｉｓｉｎｓｅｒｔｅｄｉｎｔｈｅｒｅｓｏｎａｎｔｃａｖｉｔｙｏｆｔｈｅｌａｓｅｒｔｏ ｐｒｏｄｕｃｅｄｉｆｆｅｒｅｎｔｆｒｅｑｕｅｎｃｉｅｓ.Ｔｈｅｆｒｅｑｕｅｎｃｙｄｉｆｆｅｒｅｎｃｅｃａｎｂｅｔｕｎｅｄｂｙｃｈａｎｇｉｎｇｔｈｅｏｐｔｉｃａｌｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｔｈｅｉｎｔｒａ…     

Tunable Sum Frequency Mixing of a Ti∶sapphire Laser and a Nd∶YAG Laser

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｔｉ∶ｓａｐｐｈｉｒｅｌａｓｅｒｉｓｔｈｅｍｏｓｔｗｉｄｅｌｙｔｕｎａｂｌｅｌａｓｅｒｉｎｔｈｅｃｕｒｒｅｎｔｌａｓｅｒｔｅｃｈｎｏｌｏｇｙａｎｄｈａｓａｔｕｎｉｎｇｒａｎｇｅｆｒｏｍ 0 .68ｔｏ 1 .1 μｍ .Ｓｏｉｔｉｓ ｑｕｉｔｅｉｍｐｏｒｔａｎｔａｎｄｕｓｅｆｕｌｗｉｔｈｎｏｎｌｉｎｅａｒｏｐｔｉｃａｌｆｒｅｑｕｅｎｃｙｃｏｎｖｅｒｓｉｏｎｔｅｃｈｎｏｌｏｇｙｔｏｅｘｐａｎｄｉｔｓｏｕｔｐｕｔｗａｖｅｌｅｎｇｔｈ .Ｎｏｎｌｉｎｅａｒｗａｖｅｌｅｎｇｔｈｃｏｎｖｅｒ…     

液相外延生长Cr,Ca∶YAG晶体的光谱特性

由液相外延方法在YAG晶体衬底上得到了可饱和吸收的Cr ,Ca∶YAG晶体外延层 ,给出了Cr,Ca∶YAG晶体外延层在 5 0 0nm～ 15 0 0nm范围内的室温吸收光谱曲线。分析表明 ,由外延方法获得的Cr,Ca∶YAG晶体吸收光谱的主要特征与提拉法晶体基本相同 ,但发现在 75 0nm左右存在一个弱的吸收峰。这个吸收峰极有可能产生于四面体格位的Cr5+ ,可以归属到电偶极容许的2 B1(2 E)→2 B2 (2 T2 )跃迁。     

Theoretical Analysis on the Simultaneous Operation of a Color-Center Laser and a -Switched Nd∶YAG Laser

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　ＢｅｃａｕｓｅＬｉＦ∶Ｆ- 2 ｃｏｌｏｒ ｃｅｎｔｅｒｃｒｙｓｔａｌｈａｓｉｔｓｏｗｎｄｉｓｔｉｎｇｕｉｓｈｅｄｃｈａｒａｃｔｅｒｉｓｔｉｃｓ[1～ 5] ,ｉｔｈａｓｂｅｅｎｕｓｅｄａｓａｃｔｉｖｅｍｅｄｉｕｍｓ[4 ,6,7] ｏｒａｓｍｏｄｕｌａｔｅｄｅｌｅｍｅｎｔｓ[8,9] .Ｉｎｔｈｉｓｐａｐｅｒ,ｗｅｗｉｌｌｉｎｔｒｏｄｕｃｅａｎｏｔｈｅｒｋｉｎｄｏｆｕｓａｇｅ ,ｔｈａｔｉｓ ,ｉｔｉｓｕｓｅｄｂｏｔｈａｓａｎａｃｔｉｖｅｍｅｄｉｕｍｆｏｒｃｏｌｏｒｃｅｎｔｅｒｌａｓｅｒｔｕｎａ…     

Nd,Cr∶GSGG激光棒在应用方面的研究

实验通过对Nd,Cr∶GSGG激光棒在不同电压和泵浦脉冲宽度的条件下静态激光的输出能量及效率的分析。显示出Nd,Cr∶GSGG晶体拥有比YAG晶体更好的热力学性质,以及更高的转换效率。证明了它将在大功率激光器领域得到更广泛的应用。     

Cr，Tm∶YAG晶体中的能量转移

通过对Ｃｒ∶ＹＡＧ、Ｔｍ∶ＹＡＧ和Ｃｒ，Ｔｍ∶ＹＡＧ晶体吸收光谱和发射光谱的比较，研究了Ｃｒ，Ｔｍ∶ＹＡＧ晶体中的能量转移过程．指出Ｃｒ３＋→Ｔｍ３＋能量转移过程中，无辐射能量转移占绝对优势．     

A Microchip Tunable Blue Laser Source Based upon Cr∶LiSAF in Contact with KN Crystal

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｍｉｃｒｏｃｈｉｐｌａｓｅｒｓａｒｅｍｉｎｉａｔｕｒｅａｎｄｃｏｎｓｉｓｔｏｆａｓｌｉｃｅｏｆｇａｉｎｍａｔｅｒｉａｌａｎｄｎｏｎｌｉｎｅａｒｃｒｙｓｔａｌ,ｗｉｔｈｍｉｒｒｏｒｃｏａｔｉｎｇｄｅｐｏｓｉｔｅｄｏｎｔｈｅｆａｃｅｓｔｏｄｅｆｉｎｅａ ｐｌａｎｏ ｐｌａｎｏｌａｓｅｒｃａｖｉｔｙ .Ｍａｎｙａｐｐｌｉｃａｔｉｏｎｓｒｅｑｕｉｒｅａｒｅｌｉａｂｌｅ ,ｅｆｆｉｃｉｅｎｔａｎｄｓｈｏｒｔ ｗａｖｅｌｅｎｇｔｈｌｉｇｈｔｓｏｕｒｃｅ .Ｍｉｃｒｏｃｈｉｐｂｌｕｅｌａ…     

890 mW Diode Pumped Nd∶YVO_4 Intracavity-doubled Red Light Laser

Ｔｈｅｒｅｉｓａｗｉｄｅｓｐｒｅａｄｎｅｅｄｆｏｒａｌａｓｅｒｓｏｕｒｃｅｉｎ1.3μｍｒｅｇｉｏｎｉｎｔｈｅｔｒａｎｓｍｉｓｓｉｏｎｗｉｎｄｏｗｏｆｓｏｌｉｃａｏｐｔｉｃａｌｆｉｂｅｒｓ.Ｆｕｒｔｈｅｒｍｏｒｅ,ｉｔｓｓｅｃｏｎｄｈａｒｍｏｎｉｃ(ＳＨ)...     

A Highly Efficient SHG in CPM, Nd∶YAG/LBO Laser

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｅｎｓｅｐｉｃｏｓｅｃｏｎｄｐｕｌｓｅｓｉｎｄｉｆｅｒｅｎｔｗａｖｅｌｅｎｇｔｈｓａｒｅｓｔｒｏｎｇｌｙｒｅｑｕｉｒｅｄｆｏｒｍａｎｙａｐｐｌｉｃａｔｉｏｎｓ．Ｔｈｅｔｅｃｈｎｉｑｕｅｏｆｓｅｃｏｎｄｈａｒｍｏｎｉｃｇ...     

Cr,Ca∶YAG的液相外延生长

报道了可饱和吸收体Cr4+∶YAG的液相外延生长 ,对双掺杂Cr ,Ca∶YAG外延层的吸收特性进行了分析。通过对Cr离子掺杂浓度以及外延层厚度的控制 ,λ =1.0 6 4μm的饱和与非饱和透过率差ΔT可以在 5 %～ 30 %的范围内进行调节 ,满足单片式被动调Q微晶片激光器对饱和吸收体的设计要求。分析结果同时表明外延Cr,Ca∶YAG层中还有Cr5+离子的存在     

Laser Diode Pumped Unidirectional Ring Laser Resonator with AOM Q-switch

ＬａｓｅｒＤｉｏｄｅＰｕｍｐｅｄＵｎｉｄｉｒｅｃｔｉｏｎａｌＲｉｎｇＬａｓｅｒＲｅｓｏｎａｔｏｒｗｉｔｈＡＯＭＱ┐ｓｗｉｔｃｈＪ．Ｃｈｅｎ１）Ａ．Ｄｅｈｎ２）Ｈ．Ｊ．Ｅｉｃｈｌｅｒ２）Ａ．Ｈａａｓｅ２）Ｏ．Ｍｅｈｌ２）（１）ＮａｔｉｏｎａｌＫｅｙＬ...