Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takeshi Akagawa0
Masayoshi Tsuji0
Naofumi Suzuki0
Takayoshi Anan0
Hiroshi Hatakeyama0
Kenichiro Yashiki0
Kimiyoshi Fukatsu0
Date of Patent
February 1, 2011
0Patent Application Number
125185290
Date Filed
December 18, 2007
0Patent Primary Examiner
Patent abstract
A surface emitting laser is provided with a first multilayer Bragg reflecting mirror including a first layer, a second multilayer Bragg reflecting mirror including a second layer, and an optical resonator unit that is held between these multilayer Bragg reflecting mirrors and includes an active layer. Further, the optical resonator unit contacts with the first layer and second layer respectively. The effective refraction index neff of the resonator unit is larger than either the first layer or the second layer, and an optical length neffL of the optical resonator unit has a relationship with an oscillating wavelength λ of the surface emitting laser to satisfy the following relationship: 0.5λ<neffL≦0.7λ.
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